HX Electronic Technology Co.,Ltd.

The Characteristics of Various PCB Substrates and the Realization of Environmental Protection and High Performance(2023年06月08日)

hx-technology — 2023-05-23T12:10:48+0900

https://www.hx-technology.com/company-profile/

Nowadays, electronic products can be touched everywhere, and it is closely related to people's lives. With the development of electronic equipment in the direction of miniaturization, light weight, multi-function and environmental protection, the printed custom circuit board as its basis is also developing in these directions, and the materials used for printed boards should also adapt to the needs of these aspects.

1. Materials for the production of printed circuit boards

There are many kinds of materials used in the production of pcb printed circuit boards, which can be divided into two categories: main materials and auxiliary materials according to their applications. Main material: raw materials that become part of the product, such as copper clad laminates, solder resists, inks, marking inks, etc., also known as physicochemical materials.

Auxiliary materials: materials consumed in the production process, such as photoresist dry film, etching solution, electroplating solution, chemical cleaning agent, drilling pad, etc., also known as non-physical materials.

PCB power board is an important mechanical component of electrical appliances or electronics made of copper foil substrate (Copper-clad Laminate, CCL for short) as raw material. It is widely used. Common substrates are divided into: 94HB, fireproof Plate (94VO, FR-1, FR-2), half glass fiber (22F, CEM-1, CEM-3), full glass fiber (FR-4).

2. The characteristics of various substrates of printed circuit boards

FR-1: halogen-free sheet, which is beneficial to environmental protection; high leakage resistance fluctuation index (above 600 volts, special requirements need to be made); suitable punching temperature is 40-70 ℃; bow curvature and twist rate are small and stable.

FR-2: Excellent resistance to leakage traces (above 600V), low cost and wide range of use; excellent moisture and heat resistance; suitable punching temperature is 40-70 ℃; printed circuit board FR-2 bow curvature, twist rate is small and stable; the dimensional stability is excellent.

CEM-3: Excellent machinability, can be punched. The electrical performance is comparable to FR-4, the processing technology is the same as that of FR-4, and the wear rate of the drill tip is smaller than that of FR-4; multi-level resistance to leakage traces; it meets the requirements of IPC-4101A.

FR-4: Halogen-free, the content of bromine and chlorine is less than 0.09%, no antimony and red phosphorus, no toxic components remain when burned; the sheet is harder than KB-6160 (Harder than KB-6160).

3. Environmentally friendly materials for printed circuit boards

Environmentally friendly products are the need for sustainable development, and environmentally friendly printed boards require environmentally friendly materials. For the copper clad laminate, the main material of the printed board, the poisonous polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE) are prohibited in accordance with the EU RoHS regulations, which involves the cancellation of bromine-containing flame retardants for the copper clad laminate.

In addition to being non-toxic, environmentally friendly products are also required to be recyclable after they are discarded. Therefore, the insulating resin layer of the printed circuit board base material is considered to be changed from a thermosetting resin to a thermoplastic resin.

This facilitates the recycling of waste printed boards. After heating, the resin is separated from the copper foil or metal parts, and each can be recycled and reused.

The solderability coating material on the surface of the printed circuit board, the most traditionally used tin-lead alloy solder, is now banned by the EU RoHS decree, and the substitute is tin, silver or nickel/gold plating.

Electroplating chemical companies in many countries have developed and launched electroless nickel/immersion gold, electroless tin, and electroless silver plating chemicals in the past few years, but similar new materials have not been launched by Chinese suppliers of the same type. PCBA company of HX Technology is committed to using environmentally friendly materials to produce PCB boards.

4. Printed circuit board cleaner production materials

The traditional production method of printed boards is the subtraction method of copper foil etching to form patterns, which consumes chemical etching solutions and generates a large amount of waste water.

Cleaner inkjet printing wire pattern technology without chemical and water cleaning is a dry production process. The key to this technology is inkjet printers and conductive paste materials. Now some countries have successfully developed nanoscale conductive paste materials, making inkjet printing technology into practical applications.

This is a revolutionary change of printed boards towards cleaner production. China is still lacking micron-scale conductive paste materials that are suitable for use across lines and through holes in printed circuit boards, and nano-scale conductive paste materials are even more invisible.

In clean production, cyanide-free gold electroplating process materials, chemical copper precipitation process materials that do not use harmful formaldehyde as a reducing agent, etc., it's all PCBA suppliers' duty to speed up the development and application of printed board production.

5. High-performance materials for printed circuit boards

Electronic equipment is developing towards digitalization, and there are higher requirements for the performance of supporting printed boards. At present, there are requirements such as low dielectric constant, low moisture absorption, high temperature resistance, high dimensional stability, etc. The key to meeting these requirements is to use high-performance copper clad laminate materials.

In addition, in order to realize the thinning and high density of printed circuit boards, copper clad laminate materials such as thin fiber cloth and thin copper foil are required.

The key to highlighting the light, thin and flexible characteristics of flexible printed boards is the flexible copper clad laminate material. Many digital electronic devices require the application of high-performance flexible copper clad laminate materials. At present, the direction of improving the performance of flexible copper clad laminates is adhesive-free flexible copper clad laminate materials.

As one of pcb assembly suppliers, we will do our best to meet all the customers.

What Problems Should Be Paid Attention to in the PCB Assembly Process(2023年06月07日)

hx-technology — 2023-05-23T12:10:21+0900

https://www.hx-technology.com/pcb-assembly-service/pcb-functional-test-programming/

A PCB is an integral part of any electronic device for a small toy or complex computer. Its complex interconnected components include resistors, diodes, capacitors, etc., enabling devices to operate in series.

In a sense, PCB assembly is like the "brain" of the system. In high reliability systems, especially oil drilling, space satellites and other failures can have devastating consequences. It is vital that the PCB assembly process is flawless and common mistakes in assembly are noticed. Here are some factors to be aware of:

1. Supply chain management of PCB assembly

One of the things that needs to be sorted out in order to be able to create high-quality PCBs is the supply chain. It is important to check their availability, quality and price, and the consistent ability to source components is critical to managing a product's manufacturing cycle.

The quality of the product also needs to be determined, and counterfeit PCB assemblies can have disastrous consequences for product performance and reputation. It is also important to check the delivery time of the professional PCB assembly, especially as the required volume increases.

While it is possible to obtain initial samples directly from the manufacturer, keep in mind that as production volumes increase the budget lead time.

2. The nuanced PCBassembly frame layout

While several custom PCB board designs look good on paper, making them can be a different ball game. For example, if the design has a large number of parts placed close together, soldering them can be a problem.

If it's a double-sided PCB, you need to make sure to put the largest components on one side. Basically, one needs to make sure that the pcb assembly layout actually works during the manufacturing stage. For example, pressing and holding complex parts requires manual pasting, which increases assembly time and also widens the margin of error.

3. PCB Assembly Test

PCB assembly testing, also called PCBA test, refers to testing that is often performed after manufacture. What needs to be done, however, is to design the test points at the time of envisioning. In fact, a lot of testing has been done to make sure the PCB is functioning properly. Some tests include:

Microsection Analysis - Also known as cross section, this test helps identify PCB assembly defects as well as thermomechanical failures.

Solderability Test - This test helps to test the reliability of PCB pads to ensure a solid surface for reliable solder joints. It also helps determine if storage will have any effect on the solder assembly.

PCB Contamination Test - This can test for many issues such as corrosion and degradation. Frequent handling, flux residues, etc. can lead to contamination, which in turn can lead to failure of the components of the PCB assembly. Contamination analysis is known for its accuracy and precision.

Optical Microscope - This can test the PCB for issues related to soldering and overall assembly. The process is known for its speed, as it involves the use of high-powered microscopes to check for incorrect construction.

X-ray inspection - non-invasive test, this makes any surface and internal defects easy.

PCB assembly therefore requires effective root cause analysis and to ensure corrective actions are taken so that the problem does not occur again. In addition, detailed failure analysis ensures ways to improve the product while correcting failures that may not have been discovered during the design phase.

As one of flexible circuit board manufacturers, we will do our best to meet all the needs of customers.

Seven Steps Process of PCB Circuit Board Design(2023年06月06日)

hx-technology — 2023-05-23T12:09:57+0900

https://www.hx-technology.com/

Ⅰ. The development of PCBA technology

PCBA technology has penetrated into almost every terminal field of the electronics industry, including computers, communications, consumer electronics, industrial control, medical instruments, national defense, aerospace and many other fields. PCBs have developed from single layer to double-sided, multi-layer and flexible, and still maintain their respective development trends. Due to the continuous development in the direction of high precision, high density and high reliability, continuous reduction in size, cost reduction and performance improvement, printed boards still maintain a strong vitality in the future development of electronic equipment.

Ⅱ. PCB circuit board design process

1. Preliminary preparation: including preparing the component library and schematic diagram. Before designing the PCB, first prepare the schematic SCH component library and the PCB component package library.

2. PCB structure design: According to the determined circuit board size and various mechanical positioning, draw the custom pcb enclosure in the PCB design environment, and place the required connectors, buttons/switches, screw holes, assembly holes, etc. according to the positioning requirements.

3. PCB layout design: The layout design is to place the devices in the PCB frame according to the design requirements. Generate a netlist in the schematic tool, and then import the netlist in the PCB software. After the netlist is successfully imported, it will exist in the software background. All devices can be called out through operations, and there are flying wires between each pin to prompt connection. At this time, the layout design of the device can be carried out.

4. PCB wiring design: PCB wiring design is the process with the largest workload in the entire custom PCB design, which directly affects the performance of the PCB board.

5. Wiring optimization and silk screen placement: The general design experience is that the time for optimizing wiring is twice the time for initial wiring. After the PCB wiring optimization is completed, post-processing is required. The first thing to deal with is the silk screen logo of the PCB layout. When designing, the bottom silk screen characters need to be mirrored to avoid confusion with the top silk screen.

6. Network DRC inspection and structural inspection: Quality control is an important part of the PCB circuit board design process. General quality control methods include: design self-inspection, design mutual inspection, expert review meetings, special inspections, etc.

7. PCB board making: Before the PCB board is officially processed, the circuit board designer needs to communicate with the PE of the PCBA company to answer the manufacturer's confirmation questions about the PCB board processing. These include but are not limited to: selection of PCB sheet types, adjustment of line width and spacing of circuit layers, adjustment of impedance control, adjustment of PCB stack thickness, surface treatment process, aperture tolerance control and delivery standards, etc.

If you want to know more details of PCBassembly house, please visit our website.

What Are the Requirements for Chemical-free PCB Manufacturing and PCB Assembly?(2023年06月05日)

hx-technology — 2023-05-23T12:09:34+0900

https://www.hx-technology.com/

Ⅰ. What is chemical-free PCB manufacturing and PCB assembly

Custom printed circuit board assembly, commonly referred to as PCBA china, refers to the process of rigidly mounting electronic components onto a printed circuit board. It is essentially a mechanical assembly process that solders or assembles different electronic components onto one printed circuit board in a way that can be packaged. A fully functional PCB is by no means a finished product; it needs to be connected to a power source and a display monitor to display the information. PCB assemblies are not universal, they are assembled to detailed specifications related to the placement of connectors, mounting boards, etc. In many specs, the specs are detailed enough that the exact location and size of each external component needs to be drawn.

It is common to confuse PCB assembly with PCB manufacturing; the two are completely different and unique to each other. Manufacturing PCBs requires fabrication and prototyping before actual production, while assembly requires soldering electronic components onto circuit boards for use in various gadgets and devices.

Ⅱ. PCB manufacturing and assembly requires many materials, mainly:

1. Printed circuit board;

2. Electronic components;

3. Soldering materials, including solder wire, solder paste, electrodes, solder, preforms (depending on the type of soldering to be performed)

flux;

4. Welding equipment includes soldering station, wave soldering machine, SMT equipment, PCB functional test equipment, etc.

Ⅲ. Take care of the environment

In addition to environmental concerns, workplace safety has become critical not only during process operations, but also in performing routine cleaning and maintenance functions, which is why many environmental organizations have moved to lead-free welding.

Ⅳ. Environmentally friendly cleaning process

Although there are many industries that require the use of no-clean processes, chemicals are mainly used in the cleaning process of PCB assembly. However, industries such as the aerospace, automotive, and medical industries do require post-assembly cleaning of solder retainers. It is these industries that require PCBA suppliers and assembly manufacturers to provide chemically reliable cleaning solutions that are also environmentally friendly.

This means that from an environmental perspective, the flux and solder paste residues typically used for high reliability and long life PCB assembly products need to be compatible with the solvents and cleaners required to clean them. The normal environment in which we live is already rich in pollutants, which is why it is necessary to ensure that we do not increase pollution through manufacturing and assembly processes that do not use any harmful chemicals. Raise awareness of worker and consumer safety hazards by using chemicals in PCB manufacturing and assembly without sacrificing quality or reliability.

Requirements for PCB Assembly Process Materials(2023年06月04日)

hx-technology — 2023-05-23T12:08:44+0900

https://www.hx-technology.com/

In order to meet the requirements of high quality and high reliability of SMA in circuit boards, what are the main requirements for PCB assembly process materials in the SMT process?

1. Good stability and reliability of solder paste during pcb assembly house

PCB assembly requires the solder to strictly control the content of harmful impurities; the solder paste and flux require low residue and non-corrosiveness; the adhesive requires the bonding strength to be neither high nor low to ensure that it does not fall off during the soldering process. It can also be easily removed during maintenance.

2. PCB assembly can meet the needs of high-speed production equipment

The SMT production process is generally a high-speed automated process, and the process materials should be adapted to it, such as the curing time of the bonding system.

In the mid-to-late 1980s, when PCBA suppliers used the oven intermittent curing method in PCB assembly, it was about 20 minutes, while the tunnel furnace continuous curing method commonly used in the 1990s required the curing time to be within 5 minutes. Shorter cure time.

3. PCB assembly can meet the needs of fine pin spacing and high-density assembly

Fine pin pitch and high-density assembly require finer particle size of alloy solder powder in solder paste; better thixotropy and lower slump of solder paste and binder; strict control of solid content and activity in flux, In order to avoid bad phenomena such as welding.

4. PCBdevice can meet ROSH environmental protection requirements

Many of the traditional SMT process materials contain substances that are harmful to the atmosphere, the ozone layer, and the human body, such as cleaning agents containing chlorofluorocarbons (CFCs) and lead-containing solders.

With the enhancement of human's awareness of environmental protection and the increasing attention to human health, the research on PCB assembly of harmless SMT process materials is being continuously strengthened.

The current solder is divided into lead-free and lead-containing two types according to the lead content, and lead-containing solder has been gradually replaced by lead-free solder.

The characteristics of lead-free solder are that it reduces the harm of lead to people's living environment, has the advantages of high melting point, superior tensile strength, and strong fatigue resistance, and has higher requirements for the thermal stability of the flux and the welding process and equipment.

HX Technology is a PCB assembly company and a national high-tech enterprise in China, specializing in security PCB assembly services, providing fast, professional and high-quality printed circuit board services.

HX Electronic Technology Co.,Ltd follows ISO production procedures and adopts IPC level 2 quality supervision standards to provide high-quality products. In the scientific spirit of continuous reform and innovation, with advanced production technology and management concepts, HX Electronic Technology is striving to provide global customers with high-quality products and first-class printed circuit board services. Welcome customers from all over the world to visit and consult.

The Reason Why the Copper Wire of the Impedance PCB Falls off(2023年06月03日)

hx-technology — 2023-05-23T12:07:42+0900

https://www.hx-technology.com/instrument-pcba-board.html

Ⅰ. The process elements of the custom PCBmanufacturer

1. The copper foil is over-etched. The electrolytic copper foils used in the market are generally single-sided galvanized (commonly known as ashing foil) and single-sided copper-plated (commonly known as reddish foil). The common copper rejection is generally galvanized copper above 70um Foils, red foils and ashing foils below 18um have never seen batches of PCB copper rejection.

The customer's circuit has planned the timing of the etching line. If the copper foil standard is changed but the etching parameters remain unchanged, the copper foil will stay in the etching solution for too long. Because zinc is originally an active metal, when the copper wire on the PCB is immersed in the etching solution for a long time, it will inevitably lead to excessive side etching of the circuit, and the backing zinc layer of some thin circuits will be completely reacted, and The substrate is detached, that is, the copper wire falls.

Another situation is that there is no problem with the etching parameters of the PCB, but after etching, washing and drying are not good, and the constituent copper wires are also surrounded by the etching solution left on the surface of the PCB instrument. The copper wire is over-etched and the copper is thrown away.

This condition is generally concentrated on thin lines, or during periods of humid weather, similar defects will appear on the entire PCB.

Peel off the copper wire to see that the color of its contact surface with the bottom layer (the so-called roughened surface) has been changed, which is different from the color of the normal copper foil. What you see is the original copper color of the bottom layer, and the peeling strength of the copper foil at the rough circuit is also normal.

2. Some bumps occur in the PCB process, and the copper wire is separated from the base material by external mechanical force. This defect is manifested by poor positioning or orientation, and the falling copper wire will have obvious distortions, or scratches/bump marks in the same direction.

Peel off the bad copper wire and look at the rough surface of the copper foil, you can see that the color of the rough surface of the copper foil is normal, there will be no bad side corrosion, and the peeling strength of the copper foil is normal.

3. The layout of the PCB is unreasonable. Using thick copper foil to plan too thin circuits will also cause excessive circuit etching and copper rejection.

Ⅱ. Reasons for the laminate process of PCBs

Under normal conditions, the laminate only needs to be hot-pressed for more than 30 minutes in the high temperature section, and the copper foil and the prepreg will be completely combined, so the lamination will generally not affect the bonding force between the copper foil and the substrate in the laminate.

However, in the process of stacking and stacking laminates, if the PCB is contaminated, or the rough surface of the copper foil is damaged, it will also lead to the lack of bonding force between the copper foil and the substrate after lamination, which constitutes positioning (only for For large boards) or scattered copper wires fall, but the peeling strength of copper foil near the test strip will not be abnormal.

Ⅲ. Reasons for laminate raw materials for PCBs

1. It is mentioned above that ordinary electrolytic copper foils are galvanized or copper-plated wool foil products.

If the peak value of wool foil is abnormal during production, or when galvanized/copper-plated, the dendrites of the coating layer are not good, and the peel strength of the copper foil itself is not good. The copper wire will fall when it is impacted by external force.

This kind of poor copper rejection will not cause obvious side etching after peeling the copper wire to see that the rough surface of the copper foil (that is, the surface in contact with the substrate), but the peeling strength of the copper foil on the whole surface will be very poor.

2. Poor adaptability between copper foil and resin: some special functional laminates currently used, such as HTg sheet, because of the different resin systems, the curing agent used is generally PN resin, and the molecular chain structure of the resin is simple. The degree of cross-linking is low, and copper foil with a special peak must be used to match it.

When the laminate is produced, the use of copper foil does not match the resin system, and the peeling strength of the metal foil cladding of the PCB is not good, and the copper wire will also fail to fall during the plug-in.

More kinds of PCBassembly frame, please visit our website.

How to Improve PCB Design of Bluetooth Circuit Boards?(2023年06月02日)

hx-technology — 2023-05-23T12:07:01+0900

https://www.hx-technology.com/products/

Ⅰ. Bluetooth circuit board design guide

If certain precautions are not taken, PCBs with Bluetooth technology may experience interference, data loss, and poor signal integrity. We will outline many of the rules and guidelines to consider when choosing Bluetooth technology for a specific application, especially when designing it into a circuit board.

Various applications utilizing Bluetooth circuit boards include: beacons used in shopping malls; eddy current frames for industrial sensing applications; headsets and audio, stereo products; remote peripherals such as video game controllers or computer mice, keyboards; home automation systems; wireless consumer electronics applications, including cameras, printers and telephones.

Bluetooth technology is more than 20 years old and is still evolving, and although Bluetooth technology has improved in speed, power, range, security and other attributes over the years, it seems to have remained since its inception in the mid-90s. Some of the same issues, including its susceptibility to signal interference. So, from a PCB design perspective, what can be done to optimize signal integrity and minimize interference and lost packets?

Ⅱ. How to improve the PCB design of the Bluetooth green circuit board

1. Use certified modules

If integrating Bluetooth into a product and resources are limited, consider using a pre-certified, fully-contained module to help speed development and time-to-market. It might end up adding a little cost, but usually avoid some of the hassle of antenna placement, design, and EMI susceptibility.

2. Check the Bluetooth device selection

Make sure the proper Bluetooth device is selected for the Bluetooth PCB and the antenna is properly sized and adjusted. If you want to use a simple beacon application that only needs short bursts, intervals to announce location or data, a low power, cost-effective solution with minimal functionality and peripherals can be used to save costs.

3. Separation or removal of copper signals and high-energy components

When designing a Bluetooth PCB, keep the antenna area completely away from nearby copper signals or components that carry a lot of energy.

4. Notes on power supply

Make sure the rails that power the Bluetooth module or chip are clean, and use bypass and decoupling capacitors if needed. It is also possible to use ferrite beads on the power rails into the Bluetooth area of the board to suppress high frequency noise.

5. Tools and analysis

If you are designing an antenna area, make sure you have the proper equipment to analyze and tune the matching network, or consider sending your design to a third-party RF test lab.

As a pcb assembly company, we will do our best to meet all the needs of customers.

Why Do PCB Circuit Boards Need to Do Test Points?(2023年06月01日)

hx-technology — 2023-05-23T12:06:10+0900

https://www.hx-technology.com/pcb-assembly-service/pcb-fabrication/

Ⅰ. Reasons for testing printed circuit boards

Basically, the purpose of setting inspection points is to check whether the components on the circuit board meet the specifications and characteristics. For example, if you want to check whether there is any problem with the resistance on a circuit board, the easiest way is to use a multimeter to measure it. You can find out by measuring both ends.

However, in a mass-produced factory, there is no way for you to use an electric meter to slowly measure whether the circuit of each resistor, capacitor, inductance, or even IC on each board of the printed circuit board is correct.

So there is the emergence of the so-called ICT automatic inspection machine, which uses multiple probes to contact all the parts lines on the board that need to be measured, and then sequentially measures these electronic components in a sequence-based and side-by-side manner through program control. Properties of the part.

Generally, it only takes about 1 to 2 minutes to complete the inspection of all parts of the printed circuit board in this way, depending on the number of parts on the circuit board. The more parts, the longer the time.

However, assuming that these probes directly contact the electronic components on the board or their solder feet, it is likely to crush some electronic components, but it will be counterproductive.

So a smart engineer made a clear "inspection point", and led out a pair of small circular dots at both ends of the part. There is no solder mask (mask) on it, so that the probes used for inspection can touch these small dots without using Direct access to those printed circuit board electronic components being measured.

In the early days of the circuit board, it was still a traditional plug-in (DIP) era, and the solder feet of the parts were indeed used as inspection points, because the solder feet of traditional parts were strong enough to not be afraid of needle sticks, but there were often probes. Misjudgment of poor contact occurs.

Because the general electronic parts are subjected to wave soldering or SMT tin, a residual film of solder paste flux is generally formed on the surface of the printed circuit board solder. The impedance of this film is very high and often constitutes the probe. The contact is poor, so the inspection operators on the production line are often seen blowing desperately with an air spray gun, or wiping the panels that need to be inspected with alcohol.

However, with the evolution of technology, the size of the circuit board is getting smaller and smaller. It is already a little laborious to squeeze so many electronic parts on the small circuit board. Therefore, the problem of the inspection point occupying the circuit board space is often planned. A tug of war between the end and the manufacturing end.

The appearance of the inspection point is generally round, because the probe is also round, which is easier to produce and relatively simple, so that the adjacent probes are close to each other, so that the needle density of the needle bed can be increased.

Ⅱ. Reasons for using needle bed for printed circuit board inspection

1. The use of needle bed for circuit inspection will have some inherent constraints on the mechanism. For example, the minimum diameter of the probe has a certain limit, and the needle with too small diameter is easily broken and damaged.

2. The distance between the needles is also bound to a certain extent, because each needle must come out from a circuit board hole, and a flat cable must be soldered to the rear end of each needle, assuming that the adjacent holes are too small, in addition to the problem of contact shorting between pins, and the intervention of the flat cable is also a big problem.

3. Needles cannot be planted around some high parts. Assuming that the probe is too close to the high parts, there is a risk of bumping the high parts and causing damage. In addition, because the parts are high, holes should be made on the needle bed seat of the inspection tool to avoid it, which directly means that the needle cannot be implanted. It's getting harder and harder to accommodate checkpoints for everything underground on a circuit board.

4. Because the board is getting smaller and smaller, the number of inspection points has been repeatedly commented on. Now there are some methods to reduce inspection points, and there are other inspection methods that want to replace the original needle bed inspection. None of the tests seem to be able to replace ICT 100%.

As one of PCBA suppliers, we can offer kinds of PCBA electronics for sale, if you are interested, please contact us.

What is PCBA Test(2023年03月10日)

hx-technology — 2023-03-02T18:35:09+0900

https://www.hx-technology.com/what-is-pcba-test.html

Whats PCBA Test
PCBA Test is electrical conductivity and input/output value-based test of PCBA boards with electronic components mounted on them.

Significance of PCBA testing
In the design of PCB custom printed circuit boards, there are numerical relationships between different test points such as voltage and current. But the PCBA production and processing process is very complex, including the PCB board process, component procurement and inspection, SMT assembly, DIP plug-in, PCBA test, and other important processes, in the production and processing process, maybe due to equipment or improper operation of various problems, so you need to use professional testing equipment or manual operation of the multimeter way to test the test points, in order to verify whether the actual PCBA board meets the design custom PCB requirements. In order to verify whether the actual PCBA board meets the design requirements, to ensure that each product will not have quality problems.

PCBA testing is the key step to ensure the quality of product delivery. FCT test fixtures are made according to the test points, procedures, and test steps designed by customers, and then PCBA boards are placed on FCT test racks to complete testing.

PCBA test principle
The MCU PCB board programming will capture the user's input action (e.g. long press on the switch for 3 seconds) and control the on/off of the adjacent circuits (e.g. LED flashing) or drive the motor rotation after calculation. By observing the voltage and current values between the test points on the FCT test rack, and verifying whether these input and output actions match the design, the test of the whole PCBA board is completed.

Purpose of PCBA Check
Improve the product qualification rate.

PCBA Check is a part of the whole production process of pcba processing, and is an important means to control product quality. With the improvement of product qualification rate, the throughput rate of the product will be significantly increased.

PCBA Check Conditions
To prevent parts from contamination, you must choose EOS/ESD fully protective gloves or finger gloves, and wear static rings. The light source is white or fluorescent light; the light intensity must be above 100 lux and can be clearly analyzed and visible within 10 seconds.

PCBA check method: Place the product about 40 cm from the eyes, about 45 degrees up and down, and inspect with visual inspection or triple magnification.

PCBA check standard: Tested according to QS9000 standard.

Sampling scheme: Single sampling according to MIL-STD-105E Class II standard type.

Criteria for determining the inspection: Seriously present defects (CR) AQL 0%.

A major defect: (MA) AQL 0.4%.

A minor defect: (MI) AQL 0.65%.

If you want to fond a reliable PCBA company, please contact us, and we will be our best partner.

Medical Device(2023年03月09日)

hx-technology — 2023-03-02T18:34:38+0900

https://www.hx-technology.com/pcba-medical-device/

Almost every medical equipment requires a fully assembled PCB in medical. Ultrasonic therapy equipment and blood pressure monitors are a few examples of standard medical equipment, and all of them count on PCBs to kick in. HX technology aims to provide multiple high-quality medical device products, including ultrasound pcb medicine, endoscope PCB and glucometer PCB board.

The trend of PCB Medical Industry
The medical field is not like it used to be. Advances in technology have revolutionized the industry. This change is even more evident in electronic diagnostic, research, and treatment systems and tools. Every day, several complex electronic devices and instruments are introduced to simplify various medical procedures. This growth has largely benefited the PCBA technology industry because, without PCB in medical, new inventions would not be impossible. To meet the ever-changing needs of medical device and diagnostic machine manufacturers, today's PCB manufacturers are manufacturing extremely simple parts into highly complex PCB in medical industry. Using specialized high-speed laminates, copper and aluminum substrates, ceramics, and coatings, PCB fabrication suppliers can make these boards best suited for medical industry applications.

Applications of PCB to Medical Industry
With the development of medical technology, more and more medical diagnostic, research and treatment have advanced, which need computer-aided. It means that medical devices and equipment must have a high level and high precise standard of the full form of PCBA in medical industry. Therefore, full form of PCB in medical has become more important in medical fields, which is the PCBmedical meaning in medical.

The rapid progress of medical science today is closely related to the development of the electronics industry. A lot of microbiological equipment and other instruments are individually based PCB, such as pH meters, heartbeat sensors, temperature measurements, ECG machines, EEG machines, MRI machines, X-rays, CT scans, blood pressure machines, blood glucose level measurement equipment, incubator, and some other medical equipment.

Custom medical PCBassembly
Custom circuit board design in medical is the trend today. The medical industry has chosen the same approach when it comes to PCB. Customers can provide the correct specifications with the full form of pcb in medical for board size in X-direction, board size in Y-direction, total number of holes, minimum alignment and pitch size in inches, board material, number of layers, surface coating, etc. Therefore, the manufacturer will work according to the given specifications and deliver the right product for your application.

Ultrasound PCB Application of Handheld Medical Equipment
With successive product improvements over the years and continued innovations throughout the market, handheld ultrasound devices are beginning to unlock their value. Among the early users of handheld, ultrasound are cardiologists, who use the device as an initial screening tool in the clinic, at the bedside during rounds, and in interventional units. Other users were more likely to be emergency physicians, especially emergency medical personnel, critical care staff in the intensive care unit, and military personnel. Subsequently, handheld ultrasound has gained some acceptance in procedural ultrasound (including vascular access and anesthesia). Specialists within the department are using handheld ultrasound for rapid examination and initial screening as an adjunct to more powerful onboard systems in hospital departments. PCBA suppliers are finding that an expanding customer base, coupled with affordable pricing, has led to global sales of handheld ultrasound PCBs.

What is PCB Medical Meaning?
Printed circuit boards (PCB) have an important place in healthcare and medicine. As the industry continues to innovate to provide the best technology for patients and their caregivers. More and more research, treatment and diagnostic strategies are moving toward automation. As a result, more work involving PCB in medical is needed to improve medical devices in the industry. As the population ages, the full form of PCB in medical will continue to grow in importance in the medical industry. Currently, PCBs play an important role in medical imaging devices such as MRIs and cardiac monitoring devices such as pacemakers. Even temperature monitoring devices and responsive neurostimulators can be implemented with state-of-the-art PCB technology and professional PCB assembly.

Intelligent Home Appliances(2023年03月08日)

hx-technology — 2023-03-02T18:33:55+0900

https://www.hx-technology.com/pcba-intelligent-home-appliances/

Intelligent home appliances are popular nowadays. There are a lot of options and devices available in the market. New launches of pcba kitchen appliances occur every day and you have to participate in the updates with the new one. HX technology is concentrated on providing a PCBA section of smart home products, including battery PCB board, smart home automation PCB, solar power generation PCB board, and other intelligent home appliances. We promise that HX technology will give our customers the best PCBappliances with the most competitive BMS PCB price.

Smart Home PCB in Sensors
Everything is connected and interoperable in the IoT era, which closely connects people's lives, enterprise production, and other aspects, and creates a new ecological environment. One of the more popular applications of sensors in life is the smart home PCB system. Smart home automation PCB system consists of sensors, actuators, control hubs, communication networks, and other parts, through various types of sensors to obtain a variety of data on the indoor environment. Currently, more sensors used in the home are temperature and humidity sensors, smoke sensors, formaldehyde transmitters, and so on. Sensors support the entire smart home control system of the pulse, equivalent to the whole system of "nerve endings", the transmission of information, command intelligence is of great significance, in order to keep the indoor environment comfortable, environmentally friendly, safe, sensors in the smart home automation PCB power board system to play monitoring and data for the control of the role of the hub, to improve the automation of the smart home automation PCB system monitoring. Improve the level of automatic monitoring of the smart home PCB system.

How to Choose Smart Home PCB Production Factory?
It is very important to choose a PCB processing factory with suitable production capacity and thoughtful cooperation, which can be considered from the following points.

1. The degree of factory specialization

PCBA company production equipment is equipped with a complete picture.

The processing capacity of each device, whether it meets the processing process requirements of your circuit board

PCB processing factory has not passed the ISO9001 quality management system certification.

2. Service awareness

Home automation PCB is not just product processing good cooperation, rapid response, and professional processing can save your heart and effort. By understanding the company's corporate culture and the attitude of the sales staff to customers to understand the PCB processing factory's service consciousness.

3. Industry experience

Home automation PCB industry competition is fierce, without the strength of the PCBA processing plant is difficult to survive. You can determine whether to match your own by understanding the processing plant's operating time, the processing product coverage area, the degree of difficulty of the processed product and the PCBA technology. Choose the industry experience, have processed their own products in the same field of PCBA processing factory is more reliable!

4. Price

The price of home automation PCB processing is relatively transparent.

As one of PCBfabrication suppliers, we will offer different sorts of PCBfabrication for sale, if you have needs, please contact us.

Environmental Protection Equipment(2023年03月07日)

hx-technology — 2023-03-02T18:33:25+0900

https://www.hx-technology.com/pcba-environmental-protection-equipment/

Nowadays, environmental protection has become more and more popular. The green PCB board products provided by HX technology could meet your specific requirements. There is multiple environmental protection green PCB boards you can choose from in our company, including CCTV ip camera PCBboard, CCTV camera PCB board, relay PCB board, environmental PCB, and so on. We promise that HX technology will give our customers the best green PCB board with the most competitive green PCBboard price.

What are green PCBs made of?
With everyone's increased awareness of environmental protection and the development trend of modern electronic equipment, in order to respond to global and national strategies, circuit industries turn to environmental green PCB board production and gradually use environmentally friendly materials. Many PCBA suppliers issue lists of banned and restricted materials in green PCB board production. Besides, some companies also make lists of “not to buy” materials in environmental PCB production.

HX technology pursues zero defects, starting from the smallest details, to fully ensure that all aspects of the customer's needs for the PCB green board product. As the quality management goal of continuously improving the service level, HX technology uses the excellent management system created by the ISO International Organization for Standardization, so that the customers can rest assured to use our green PCB board products.

Why are PCB boards green?
The color of the surface of the green PCB board is actually the color of the solder resist. Solder resistance can prevent the component is-soldering phenomenon and can delay the device life to prevent the component line oxidation and corrosion. If you know more about electronic products, you will find that the PCB color is generally green. This is mainly because the green solder resist process is the most mature and simple, green PCB board is also more environmentally friendly.

As for green oil, its solder resists ink is the oldest, cheapest, and most popular.

There are many advantages of green PCB board:

During PCB power board processing, electronic product manufacturing including board making as well as posting, during which there are several processes to go through the yellow lightroom, and green PCB board in the yellow light room has the best visual effect.

Secondly, in SMT placement processing, the tin, placement, and AOI verification of these steps, all need optical positioning calibration. Green backplane instrument identification is more friendly.

Part of the inspection process relies on workers to observe (but now most of the use flying probe tests instead of manual). In the bright light exposure to constantly stare at the board, green is friendly to the eyes.

Green PCB boards are also more environmentally friendly, and the wasteboard for the high-temperature recycling process, will not release toxic gases.

We can also offer kinds of pcb assembly frame for sale, if you have needs, please contact us.

PCB Functional Test & Programming(2023年03月06日)

hx-technology — 2023-03-02T18:32:55+0900

https://www.hx-technology.com/pcb-assembly-service/pcb-functional-test-programming/

If you want to ensure the good quality for delivery of every board, the pcb programming, and PCB functional test is the best way to test.

PCBA Online Programming:

Before finishing welding, we usually program the microcontroller in the PCBA board to enable the microcontroller to achieve specific functions. PCB testing machine will improve efficiency and reduce production costs.

PCBA Test

Including ICT test, FCT test, Burn-In Test, fatigue test

ICT Test (In-Circuit Test)：Through the test probe contacting the test point of the PCBA, the main PCBA test circuit continuity, voltage and current value, fluctuation curve, amplitude, noise, etc.

PCB Functional Test Requirements
Before discussing design, test systems, software, and test methods, it is important to understand the "object" - the PCB product to be tested, not only the PCB or final assembly itself, but also how much will be produced, the expected failures, etc., including

Product type

Structure (single PCB / pre-made PCB / final product)

Test specification plan:

test point expected production (per line / per day / per shift, etc.)

Expected failure type

Obviously, the above ignores the "budget", but only after understanding the above items to determine how much a product test to spend, to figure out what is needed to PCB functional test the UUT before you start discussing funding issues, and only at this time to know how to make compromises to get the job done.

PCB Functional Test Requirements

PCB Functional Test & Programming Quality Control
FCT Test (Functional Test):

Firstly we need to program the prepared single-chip microcomputer (MCU) into the program IC through the burner, this step is conducting a simulation test for all PCBA tests. Then it has any questions from hardware and software, we will also be equipped with the necessary patch processing production tooling and test racks.

Burn-In Test：

After the online PCBboard programming and FCT for the PCB board, we can simulate user input and output for a long time and periodically test its durability and welding reliability.

Fatigue test：

It is mainly to sample the PCBA power board, and perform the high-frequency and long-term operation of the function, observe whether there is a failure, and judge the probability of failure in the PCB board testing, so as to feedback the working performance of the PCBA board in the electronic product.

In order to make sure nothing goes wrong, we will carry out strict inspection procedures to ensure the delivery of high-quality products.

Significance of PCB Functional Test
PCB functional test is becoming increasingly important, however, the same as PCB board programming online test, the technology development, and PCB design can make the testing scope limited. Although great progress has been made in the PCB testing software environment to help overcome some of the difficulties, if you want to follow your test strategy to successfully implement PCB functional testing, there are many problems to avoid and to do more thorough preparation. PCB functional testing is increasingly being used in post-production line processes and even for mid-process testing, but the systems and implementation methods are almost completely different from those of the past. Today's PCB functional testing systems are in most cases faster and more compact, and PCB functional testing is indispensable for verifying overall product functionality, maintaining calibration information, providing data to ISO 9000 programs, and assuring the quality of high-risk products. Such as the quality of PCB in medical equipment are indispensable.

What are the PCB board programming software?
There are three most mainstream PCB board programming softwares that people currently use.

Altium Designer

The original Protel software developer Altium launched the design software, can provide designers with new design solutions. Altium Designer's positioning is relatively simple, such as microcontrollers, simple industrial class, and is generally used for low-end product design.

PADS

Provide interfaces with other PCB design software, CAM processing software, mechanical design software. This software has a small interface menu, and is not difficult to get started.

This software has a high market share in consumer electronics, is relatively easy to get started, and is suitable for most small and medium-sized enterprises.

Allegro

Cadence company developed a software, and came with simulation tools, to achieve signal integrity simulation, power integrity simulation.

More details of pcb assembly house, please contact us.

Custom PCB Project(2023年03月05日)

hx-technology — 2023-03-02T18:32:21+0900

https://www.hx-technology.com/custom-pcb-project/

DRC Check-in Design Custom PCB
In the manufacturing industry, does the process designer need to check the design results after design custom PCBboard? The answer is yes.

DRC check, also known as design rule check, which is PCB design software (EDA) used in the PCB Layout process in real time to check and find the design does not match the intended design specifications. DRC check is used to ensure the correctness of the design and meet the conventional design specifications as a starting point, is an indispensable part of the custom PCBboard design. Based on the role and purpose of the DRC, it is generally no more than 100 check line items.

Meet the DRC check is the most basic requirements of design custom PCB, to meet the DRC does not necessarily mean to meet the manufacturability requirements.

DFM Check-in Design Custom PCB
DFM check, also called design for manufacturability analysis, is based on custom PCB data through real 3D component models and actual manufacturing process simulation, a comprehensive design review of PCB and PCBA manufacturability before fabrication. The first time to find the design custom PCB defects or deficiencies, process difficulties, manufacturing risks, design custom PCB and process mismatch factors, etc., to ensure that the custom PCB design and process capabilities fully match. As a PCBA company, HX Technology will essentially reduce the number of trial production, save production costs, and improve product reliability.

DFM is a bridge between design custom PCBassembly and manufacturing process, which belongs to the category of process design, through which you can find the mismatch between design and manufacturing process factors, assess the manufacturing difficulty, manufacturing risk, etc. These are not covered by DRC in order custom circuit board design software.

Power PCBA Board
Custom circuit board design need to find professional suppliers, and users need to make reasonable judgments in the process of selection. Choose a professional supplier can ensure the actual production advantages, can be quickly put into use, to obtain better conditions of use. hx technology can ensure the value of the product, to understand the better quality suppliers in order to work closely together.

Control PCBA Board
The production of PCBA processes requires a refined mode of operation and a greater understanding of the degree of specialization in the selection of suppliers. HX Technology has created a unique production line, and the actual scale of production is expanding, strengthening the advantages of production. We are able to produce better products in a shorter period of time.

Instrument PCBA Board
HX Technology, as a professional manufacturing service provider, relies on the layout of a flexible production network to help you complete the entire manufacturing and supply chain service from product prototype to mass production. With multiple production lines as the support to build a flexible production network, you can achieve high efficiency and fast response no matter what stage of your product.

As a PCBassembly supplier, we will do our best to meet all the needs of clients.

Control PCBA Board(2023年03月04日)

hx-technology — 2023-03-02T18:31:55+0900

https://www.hx-technology.com/control-pcba-board.html

As a Chinese PCBA company that produces control PCBA boards, HX Technology provides high-quality control PCBA board services. It is used in computers and related products, communication products, and consumer electronics, and other 3C products. How to let our customers get the best service experience? HX Technology's answer is to provide customers with high-precision, high-quality fast PCBA boards through the cooperation of experienced, senior, and rigorous team members.

Features of SMT PCBA
Our SMT Fast PCBA can be used for power supply, signal transmission, heat dissipation, and provide structure.

Able to withstand the temperature and time of curing and soldering.

Flatness meets the requirements of the manufacturing process.

Fast Blue PCBA is suitable for rework work.

Suitable for the substrate manufacturing process.

Low dielectric number and high resistance.

What is main PCBA?
Main PCBA can be understood as the finished circuit board, that is, after all the processes of the circuit board are completed, which can be considered Main PCBA. Due to the continuous miniaturization and refinement of electronic products, most of the current PCB power boards are used to attach etching resist (pressure film or coating), after the exposure of the development, and then etching to make the printed circuit board.

In the past, the PCBA technology knowledge of cleaning is not enough, because the PCBA assembly density is not high. There is also the belief that flux residue is non-conductive, benign, which will not affect the electrical performance.

Company Profile(2023年03月03日)

hx-technology — 2023-03-02T18:31:12+0900

https://www.hx-technology.com/company-profile/

As a PCB assembly company, a Chinese national high tech enterprise and SMT electronic technology limited, HX Electronic Technology Co., Ltd. is specialized in full form of PCBA assembly service, including PCB fabrication, components sourcing, SMT, and THT. Our products are widely applied in industrial controllers, medical equipment, telecom devices, environmental protecting equipment, instruments and meters, security system, smart electronic devices, vehicle electronic devices, consumer electronics, and so on.

With a total investment of $10 million and covering an area of more than 10000 square meters, HX Technology now has more than 300 employees, including 50 senior engineering and technical personnel, 50 supply chain management staff, and 30 components sourcing staff amount them. Our professional PCBassembly supplier and SMT electronic technology limited are equipped with 6 automatic SMT production lines, 2 THT production lines, 2 assembly lines, and a large number of advanced inspection and testing equipment. Our current daily production capacity is 10 million SMT points /day, 2.5 million THT pieces /day, and 5000 electronics assembly units/day.

HX Technology has established a perfect supplier import and analysis system to ensure our superior advantage of PCBA material quality, lead time, and pricing. Our professional sourcing team can acquire inventory information of remote, unpopular, and short materials, thus presenting the best purchasing solution. We have established a strategic partner relationship with local plastic, metal, and mold suppliers in China, which makes us can provide high quality, fast delivery, low price for special customized material. HX Technology guarantees that all the components are original binding and sourcing traceable.

HX Technology provides fast, professional, and high-quality printed circuit board service, including minimum 6 hours quotation releasing, minimum 2 hours engineer query releasing minimum lead time in 72 hours, minimum 48 hours global express shipment, after-sales problem resolving solution in 2 hours, professional DFM report, and 24 hours online customer service.

HX Technology provides high-quality products by following the ISO production procedure and adopts the IPC class 2 quality surveillance standards. In line with the continuous reforming and innovation of the scientific spirit, with advanced production technology and management philosophy, HX Technology is working hard to provide high-quality products and first-class printed circuit board service for customers all over the world.

5g Era Of The Big Winner-PCB(2023年03月02日)

hx-technology — 2023-03-02T18:30:31+0900

https://www.hx-technology.com/5g-era-of-the-big-winner-pcb.html

5G PCB Design

Why 5G PCB is the winner in the 5G era?
First, 5G base stations compared to 4G will have an increase in the number. According to public

data from China's three major telecom operators, in 2016 China Mobile, China Telecom, China Unicom added 400,000 4G base stations, 380,000, 340,000, respectively, raising the total to 1.51 million, 890,000, 740,000, a total of about 3.14 million. And it is estimated that the number of small base stations alone will be more than 10 times the current base station market.

Second, due to the characteristics of 5G high speed and high frequency, the value of the communication board will also be greatly enhanced in terms of individual base stations. On the one hand, with the increase of 5G frequency bands, the increase in frequency makes the number of RF front-end components increase significantly, as well as Massive MIMO integration to the AAU, the use of PCB circuit boards on the AAU area increased significantly, the number of layers increased, the added value of the antenna AAU to the PCB board and copper laminate; on the other hand, with the significant increase in 5G transmission data, the data processing capacity of the base station BBU has On the other hand, with the significant increase of 5G transmission data, there is a higher requirement for the data processing capacity of BBU of base station, which will adopt larger area and higher layer PCB, and the base material needs to use high speed and high frequency material. Conservative estimates show that the PCB telecommunication for 5G value of a single 5G macro base station is more than twice that of 4G.

5G cell phones and tablet PCs and other thin and light demand to drive the FPC market
IDC has predicted that the first 5G smartphones will be available in the second half of 2019, and 5G phone shipments will reach 7% of total smartphone shipments by 2020 (about 212 million units), and 18% by 2022.

According to industry research, the new Apple phone at least 20 pieces of FPC material number, the value of space more than $ 20, and flat-panel products are expected to further thin and light, will use a large number of FPC products. At the same time, leading domestic brands such as Huawei, OPPO, Vivo, etc. have also improved the amount of FPC to 10-12 pieces.

In 2016, the global market size of FPC grew to 85.2 billion yuan, and the market size of FPC in China grew to 31.6 billion yuan. It is expected that by 2021, China FPC market is expected to reach 51.6 billion yuan, with a compound growth rate of 10%.

Automotive electronics, electrification, and intelligence will bring incremental market space for PCBs
First, intelligent driving & automotive electronics: the electronicization of the car will bring the growth of automotive PCB usage, automotive electronics accounted for about 30% of the vehicle BOM in 2010, the proportion is expected to rise to 50% by 2030. The current mid-range models PCB use an area of about 0.5 to 0.7 square meters, the economic car PCB use an area of 0.3 to 0.4 square meters, assuming that the average PCBdevice price is 1000 yuan / square meter, the average value of about 800 yuan per car, luxury cars PCB use an area of about 2.5-3 square meters, the value of more than 2500 yuan per car, with the deepening of automotive electronics, automotive PCB demand area will gradually increase. Automotive PCB demand area will gradually grow. In addition, the advanced driver assistance system for intelligent driving ADAS also requires a large number of PCBs.

Second, new energy vehicles: new energy vehicles than traditional cars with PCB volume has been greatly enhanced, if the preliminary estimate of single-vehicle PCB for 3 square meters, assuming that the average price of PCB is 1,000 yuan / square meter, the new energy vehicles in 2018 to 2020 corresponding PCB new market size of 2.850 billion yuan, 3.960 billion yuan, 5.430 billion yuan.

Cloud Computing
Data centers drive the demand for high-end PCB products such as high-frequency and high-speed currently global data centers to high speed, high capacity and other characteristics of development. According to IDC, the global data center market size reached $45.2 billion in 2016, with a growth rate of 17%. China's data center growth is significantly faster than the global pace, with a scale of 71.5 billion RMB in 2016, a growth rate of 37%.

If you want to know more about PCBassembly house, please visit our website.

PCB Assembly Service(2023年01月24日)

hx-technology — 2023-01-03T16:25:09+0900

https://www.hx-technology.com/products/

HX Electronic Technology Co.Ltd is a professional PCB Assembly manufacturer. We are specialized in Electronic Manufacturing Service in the European market and the US market for more than 10 years. We can provide one-stop printed circuit board service, including PCB fabrication, component sourcing, SMT and THT. HX Technology provides one-stop prototype prototype PCB assembly services for more than 14 years. As a professional supplier of PCBA boards, we are committed to providing high-quality PCB boards. We specialize in small and medium batch production, and HX Technology is equipped with advanced machinery and professional staff. We promise that customer needs will be quickly responded in our company. Product manufacturing follow-up is more professional. Quality control is more refined. After-sales service is more intimate. Our PCBA printed circuit board assembly services are widely applied in industrial controllers, medical equipment, telecom devices, environmental protecting equipment, instruments and meters, security system, smart electronic devices, vehicle electronic devices and so on.

PCBA Technology Development
Vigorous development of high-density interconnection technology: HDI concentrates on the most advanced technology of contemporary PCB, which brings fine wire and tiny aperture to PCB.

Strong vitality of component embedding technology: component embedding technology is a huge change in PCB functional integrated circuits. PCB manufacturers have to invest more resources in the system, including design, equipment, testing, simulation, to maintain a strong vitality.

PCB materials that meet international standards: high heat resistance, high glass transition temperature (Tg), low coefficient of thermal expansion, and small dielectric constant.

Optoelectronic PCB has a promising future: PCBA technology uses the optical path layer and circuit layer to transmit signals, and the key to this new technology is the manufacture of the optical path layer (optical waveguide layer). It is an organic polymer that is formed by using lithographic photocopying, laser ablation, and reactive ion etching.

Update the manufacturing process and introduce advanced production equipment.

HX Technology, a PCBA company, masters all the core technology and supplies top-quality PCB assembly.

What is PCB Assembly Services
PCB assembly (pc board assembly) is one of the most important steps in PCB fabrication which includes all the components of manufacturing the complete PCB. There are two ways to make a pc board assembly; namely, Surface Mount Technique (SMT) and Through-Hole Technique (THT). SMT is a circuit assembly technology in which the pinless or short-lead surface-mounted components (SMC/SMD) are mounted on the surface of a Printed Circuit Board (PCB) or other substrate and assembled by soldering through reflow or dip soldering methods. At last, the PCBA boards will be put into the custom PCB enclosure to prevent them from damage or breakage. THT uses leaded components with circuit connection leads and mounting holes designed on the printed board, and establishes long-term mechanical and electrical connections by inserting the component leads into the through-holes reserved on the PCB, temporarily fixing them and then soldering them on the other side of the substrate to form reliable solder joints.

Types of PCB Assembly Service
PCB Assembly
HX Electronic Technology Co.Ltd is devoted to providing one-stop service including PCB fabrication, component sourcing, SMT and THT. If needed, we can also provide assistance with circuit board layout, panel optimization and production design. Our factory is equipped with 6 automatic SMT production lines, 2 THT production lines, 2 assembly lines, a large number of advanced inspection and testing equipment. For our current daily production capacity, we can proceed with 10 million SMT soldering points/day, 2.5 million THT pieces/day and electronics assembly is 5000 units/day.

PCB Fabrication
HX specializes in the production and fabrication of single-sided, double-sided, multi-layer all the way up to 24 layers and aluminium backed printed circuit boards, which use metals like aluminium or copper. We can manufacture Metal backed PCBs with aluminum or copper in different thicknesses, any solder mask color, final profiling of metal backed circuits can be punched, routed, supplied as individual circuits or supplied in a v-cut panel.

PCB Functional Test & Programming
HX Technology provides burning services after customers provide test plans to solve customers' complex circuit or time-consuming problems. Through the PCBA test, we can check the circuit board clearly, such as the circuit continuity, all PCBA board function, observe whether there is failure and welding reliability so on. It will avoid the generation of defective products and technical problems accuracy. Our aim is to pursue 0% complaint on quality. In order to make sure nothing goes wrong, we will carry out strict inspection procedures to ensure the delivery of high-quality products.

PCB Enclosure Assembly
We can do PCB enclosure assembly base on the demands of customers. For example, provide electronics enclosures and wiring. We can also provide customization services to save costs and fasten the lead time for our customers.

Advantages of HX Professional PCB Assembly Service
HX PCBA technology focuses on exploring the SMT patch and post-welding, world, and testing one-stop service for proofing and demonstration.

SMT production lines: 10 SMT production lines.

High-end equipment: FUJI XPF, NXT3, AIMEX III, AOI/SPI/XRAY/smart first piece tester, etc.

Full BOM material supply: RC/magnetic bead inductance/connector/vibration/two transistors and other spare parts in the warehouse.

Fast delivery: customers deliver within 8 hours, and the delivery rate exceeds 95% within 48 hours.

Minimum placement: 03015, 01005, 0201, 0402.

Accompanying hardware innovation platform: design, board manufacturing, patch PCB, component supply.

PCBA OEM services are available.

FAQs of PCB Assembly Service
What is PCBA manufacturing?
The PCB bare board passes through the SMT patch, and then passes through the entire process of the THT plug-in, referred to as PCBA.

SMT (Surface Mount Technology). It is an assembly technology that mounts surface mount components onto PCB bare board.

THT (Through Hole Technology). It is a through-hole insertion installation PCBA technology.

What is PCB assembly?
PCB assembly refers to the assembly of various electronic components on the circuit board through the surface packaging process, that is to say, the empty PCB board passes through the SMT upper part, and then passes through the entire manufacturing process of the THT plug-in.

How much does PCB assembly cost?
PCB assembly cost usually consists of four parts. The cost of components, the cost of tooling, the cost of PCB bare board, and the cost of assembly service. For the same project the second order, the tooling cost is not needed. We ship the goods by DHL or FedEx which entails the shipping cost, if our clients provide their delivery account, then this cost is also deleted.

What is PCB assembly process?
We have high-quality control system and cost control system; components are original binding and sourcing traceable. Quick-response customer support and professional logistical management to meet your demands.

What is a PCB assembler?
First of all, bought all materials including PCB bare board, components, stencil according to customer needs, process the EQ stage and Weld the components on PCB board such as SMD &THT.

We are committed to providing our customers with professional,
high-quality and high-layer PCB services.

If you want to know more about what dose custom PCBcost, please visit our website.

Power PCBA Board(2023年01月22日)

hx-technology — 2023-01-03T16:24:16+0900

https://www.hx-technology.com/power-pcba-board.html

PCBA Definition

HX Technology is committed to providing high-quality power PCBA board services as one of the professional PCBA suppliers. The product services cover industrial controller, medical equipment, telecommunications equipment, environmental protection equipment, instrumentation, security systems, and other fields. HX Technology's power PCBA boards are exported to Europe and North America. With experienced, senior, stringent, and principled work styles, we aim to provide our customers with the best power PCBA boards and good service feeling.

Application of PCBA Electronics
Electronic PCBA is mainly used in computer motherboard mouse board, graphics cards, office equipment, printers, copiers, shakers, all kinds of chargers, calculators, digital cameras, radios, TV motherboards, limited TV amplifiers, cell phones, washing machines, electronic scales, telephones, LED lamps, etc. What's more, PCB appliances in the application of home appliances: air conditioners, refrigerators, stereos, MP3; used in industrial equipment: GPS, automobile, instrumentation, medical instruments, aircraft, military weapons, missiles, satellites, etc.

Process of Manufacturing Power PCBA
The manufacturing of the power PCBA board is divided into two parts. One part is the manufacturing of the PCB power board itself. The other part is the soldering of the components. Only after soldering components, the power PCBA can achieve its function and value. The process of welding components on the PCB, called PCBA, namely printed circuit board assembly, which is the empty PCB after SMT, and then after the entire process of DIP plug-in.

PCBA circuit board Professionals
HX Technology is the leading PCBA circuit board provider. We offer your PCBA circuit board requirements. We will give you comprehensive expertise and quality assurance of power PCBA products.

As a PCBassembly supplier, we will do our best to meet all the needs of customers.

Telecommunication(2023年01月20日)

hx-technology — 2023-01-03T16:23:32+0900

https://www.hx-technology.com/telecommunication/

HX technology is determined to provide high-quality telecommunication services, including PCBtelecommunication, 5g PCB design, current sensor PCB, current sensor PCB, and so on. Despite other parts, PCB assembly plays a crucial role in telecommunication services. The quality of PCBA determines the quality of the products and it's life length. Many of our clients in telecom choose us to be their best PCBA supplier.

PCB Telecommunication for 5G Development
As a new generation of revolutionary technology, 5G not only means an exponential increase in data transmission speed but also a truly converged network, which will promote related application fields, such as the Internet of Things, Industry 4.0, Artificial Intelligence. Telematics and interactive multimedia applications will be popularized, thus forming the "Internet of Everything" era.

PCB as the "mother of electronic products", the profound changes in the downstream consumer market will directly affect the development trajectory of the PCB industry. The PCBA OEM generally believes that the next three to five years 5G communications will surpass today's intelligent terminals, automotive electronics two major application markets, the first engine to drive the growth of the PCB industry.

Requirements for 5G PCB Telecommunication Design
The selection of boards to meet the requirements of high frequency, high speed.

Impedance matching.

The planning of the layer stack.

Wiring and hole spacing to meet the signal integrity requirements.

The operator can consider 5G PCB design specifically from the loss, buried, high-frequency phase or amplitude, mixed voltage, heat dissipation, PIM these six aspects.

What is PCB telecommunication?
PCBtelecom demand is divided into segments such as communications equipment and mobile terminals. Communications equipment is mainly used for wired or wireless network transmission of communications infrastructure, including communications base stations, routers, switches, etc. Communication equipment mainly uses high multi-layer PCB telecommunication boards, of which 8-16 layers account for about 42% of the mobile terminal is dominated by HDI and flexible boards. PCB boards produced by HX PCBA company are of great quality and suitable for telecommunication industry.

As the one of PCB assembly suppliers in China, our services include PCB fabrication, components sourcing, SMT, THT, PCB assembly frame, and PCB assembly frame house. Our products are widely applied in industrial controllers, medical equipment, telecom devices, environmental protecting equipment, instruments and meters, security system, smart electronic devices, vehicle electronic devices, consuming electronics and so on.

PCB Fabrication(2023年01月18日)

hx-technology — 2023-01-03T16:22:41+0900

https://www.hx-technology.com/pcb-assembly-service/pcb-fabrication/

Printed circuit board (PCB) fabrication is a method of assembling circuit boards used in computers and other electronic products in which the various layers of the circuit board are combined together with a specific surface pattern so that it can be used for electronic manufacturing. As the one of PCBfabrication companies in China, HX can manufacture PCB in-house or outsource it to an company that specializes in manufacturing.

Features of PCB Fabrication Services
Printed circuit board (PCB) fabrication is a method of assembling circuit boards used in computers and other electronic products. The layers of a PCB power board are put together along with a specific surface pattern so that it can be used for electronics manufacturing. PCB fabrication companies can manufacture PCBs in-house or outsource this aspect of production to a specialist. PCB fabrication process begins with design. Some PCB fabrication specialists can also design the board, using specifications provided by the customer.

In other cases, customers develop their own files and send them to the PCB fabrication manufacturers. These files are presented in a format called Gerber file, an industry standard for recording PCB-specific details. PCB fabrication companies use Gerber files to program PCB manufacturing for their devices. A variety of techniques can be used, depending on the need for production. Custom wifi PCBboard design tend to be more expensive because it requires small production runs, while generic or standard formats are less costly.

Prototypes, produced in very limited quantities of boards, can be very expensive. And in some cases, to limit PCB fabrication cost and reduce the loss of proprietary information, the conductive foil layers are glued together before being covered with solder masks This is the basis for connecting the thin copper wires of the circuit and can be done by plating or other means. Multiple layers can be made using certain PCB fabrication methods. The finished PCB is assembled with other components and tested to confirm that it works properly before being sent to the customer.

PCB Fabrication Process
The PCB fabrication is a complex process that begins with a product concept and ends with a fully functional PCBA. Here is a sequence of steps of the PCB fabrication process, total of eight steps, generated by PCBfabrication suppliers.

Step 1 – The Design.

Step 2 – Printing the Design.

Step 3 – Creating the Substrate.

Step 4 – Printing the Inner Layers.

Step 5 – Ultraviolet Light.

Step 6 – Removing Unwanted Copper.

Step 7 – Inspection.

Step 8 – Laminating the Layers.

PCB Enclosure Assembly(2023年01月15日)

hx-technology — 2023-01-03T16:22:02+0900

https://www.hx-technology.com/pcb-assembly-service/pcb-enclosure-assembly/

HX Technology also offers PCB Finish Product Assembly and circuit board enclosure box, including assembly with the outer shell and with a wire connector.

With two circuit board enclosure lines and a specialized warehouse for raw material provided by customers, we will ensure your circuit board enclosure box products meet the highest quality standards for assembly. With consideration of enclosure design for full form of PCBA and knowing the finish product structure first, we would set standards for every kind of printed circuit board enclosures we assembly; only with strict criterion and control system to make sure the quality and deliver on time!
Design Guidelines of Printed Circuit Board Enclosures
Ensure MCAD and ECAD tools use the same data format.

Select the right component package for the printed circuit board enclosures.

Ensure that the printed circuit board enclosures box fits the board size.

Ensure board cutouts are accurately aligned with component placement.

Understand the environmental hazards of the installation.

Consider the impact on signal transmission.

Select printed circuit board enclosures materials that meet thermal requirements.

Consider equipment tolerances.

What is a Circuit Board Enclosure?
Printed circuit board enclosures is equipment to store and protect printed circuit boards, which can offer a PCB cover. In order to protect the PCB from environmental factors, adding possible consideration of electromagnetic compatibility (EMC), circuit board enclosure box is almost certain that the PCB will be placed in some form of enclosure. Inevitably, the printed circuit board enclosures will interfere with the free flow of air around the PCB and therefore also have an impact on the thermal performance of the system.

Features of Printed Circuit Board Enclosures
The custom printed circuit board enclosures are completely sealed and has no holes or seams.

The thickness of the printed circuit board enclosures is 2 mm, independent of the housing material.

The printed circuit board enclosures are capable of dissipating thermal energy to the outside environment through convection, conduction and radiation mechanisms.

Safety Distance Between enclosure design for PCB
The production and processing of PCBA for the board and the enclosure design for PCB will generally have safety distance requirements. This distance can ensure that our PCBA board will not be damaged in some harsh environment. The requirement must be enforced by all PCBA suppliers.

The safety distance between the PCBA board and mounting PCB in the enclosure includes electrical clearance (space distance), creepage distance (distance along the surface), and insulation penetration distance.

I. PCBA board and PCBenclosure design of the electrical clearance requirements: electrical clearance refers to the two adjacent conductors or a conductor and the adjacent motor shell surface along the shortest distance measured by air. According to the measured working voltage and insulation level, the distance can be decided.

II. PCBA board and custom PCB enclosure creepage distance requirements: creepage distance refers to the two adjacent conductors or a conductor and the adjacent motor shell surface along the shortest distance measured by the absolute insulation surface.

III. PCBA board and custom PCB enclosure insulation penetration distance requirements: it should be in accordance with the working voltage and insulation application occasions in line with the following provisions.

For working voltage not exceeding 50V (71V AC peak or DC value), there is no thickness requirement.

The minimum thickness of additional insulation should be 0.4mm.

When the reinforced insulation is not subject to any mechanical stress at the normal temperature that may lead to deformation or performance degradation of the insulation material, the minimum thickness of the reinforced insulation should be 0.4mm.

HX will design custom PCB enclosure with a safety distance for your use!

If you have needs to buy any PCBboxes, please contact us.

As one of pcb fabrication suppliers, we will do our best to meet all the needs of customers.

PCB Assembly(2023年01月10日)

hx-technology — 2023-01-03T16:21:12+0900

https://www.hx-technology.com/pcb-assembly-service/pcb-assembly/

HX electronic technology specializes in manufacturing PCBAs using fully automated. We have the 6 SMT lines equip Fuji XPF SMT machine for surface mount (SMT) and 2 through-hole technology (THT) lines. HX PCBA technology company is uniquely positioned to take on large mass, medium volume and small quantity projects with industry-leading strict quality assurance and competitive prices. Manufacturing the stand to IPC-A-610 Class II and III standards, every employee with high tech inspection and testing equipment service one goal. We can offer professional PCB assembly and a reasonable PCBassembly price for customers.

PCB Assembly Quality Control
In the processing and assembling of PCB assembly, components and systems, one of our PCB and PCBA manufacturing guiding principles is to comply with production-related and customer-specific guidelines and quality guidelines. As an ISO 9001.2015 certified PCBA factory, we work in accordance with the agreement defined by ISO. As the great PCBA factory, we can consistently obtain a high level of manufacturing quality through a reasonably structured manufacturing process and accompanying manufacturing documents.

Features of PCB Assembly
SMT, THT Service.

AOI, X-Ray, High and low-temperature test, aging.

Fine Pitch, BGA and Passives placement to 01005.

RoHS, and CSA Compliant.

Conformal Coating and Potting.

Off-site to strategic partners for in-circuit testing (ICT).

PCBA is the abbreviation of the printed circuit board assembly, that is to say, PCB empty board after SMT on the pieces, and then after the DIP plug-in the whole process, referred to as PCB assembly. PCB board SMD will have thousands of electronic components and welding test points, and finally composed of a circuit board. It is important to produce the PCBA board as stated in custom PCB board design. The reason is that with many small and dense accessories, if there is a little careless in the whole PCBA production, the wrong material or detection will affect the quality of the product and a lot of waster.

Application of PCB Assembly
The electronics industry covers a wide range of products, including automobiles, computers, TVs, cell phones, etc. With the change of market demand and the development of technology, electronic products will become smaller and smaller, with shorter life cycle and multi-variety, small batch and integrated production. In the electronic products, PCB assembly is an important process in the electronics industry. 3C products such as computers and related products, communication products and consumer electronics are the main application areas of PCB assembly. CEA said the biggest demand comes from smartphones, notebook computers and smart home PCB appliances, and other products with very significant sales include digital cameras, LCD TVs and other products.

The difference between PCB and PCBA
PCBA refers to a processing process in general, and can also be understood as a finished circuit board, that is, the PCB board processes are completed before the PCBA production.

PCB refers to an empty printed circuit board. There are no parts on it. In a nutshell, PCBA is a finished board after PCBA technology using; PCB is a bare board.

PCB Assembly Cleaning Introduction
At present, in the whole unit to PCB assembly uses two cleaning methods:

one is to use anhydrous ethanol manual brushing, using an immersion or local brushing. Manual brushing is mainly for PCB power board assembly with more components that are not suitable for water washing or all immersion cleaning, and more difficult to take local protective measures, such as: fiber optic connectors, etc.;

the other is to use cleaning agent saponifier deionized water automatic cleaning, for the current miniaturization, high density of airborne PCB assembly has a better cleaning effect.

PCB assembly house from the completion of electrical assembly to its final delivery needs two cleaning processes:

one after the completion of electrical assembly cleaning, is to timely remove the residue of solder paste agent in the welding process;

another one is the cleaning before the three-proof spraying. In general, the module after completing the soldering is first debugged to ensure that it is trouble-free, and then subjected to relevant environmental tests after the three-proof treatment. As it will be stained in the process of single board debugging, whole machine assembly, etc., it will also be cleaned again before three-proofing.

Security Product(2023年01月12日)

hx-technology — 2023-01-03T16:19:42+0900

https://www.hx-technology.com/pcba-security-product/

After every single detail of the electronic device has been finished for the design and engineering, we will prepare for production. The needed electronic components will be purchased from our reliable suppliers globally. First article, small, medium and large serial production are accessible to your security product. HX technology is devoted to providing various high-quality security products, including IP camera circuit board, ip camera PCBboard, IP camera module PCBboard, security PCB, monitor PCB and so on.

IP Camera Circuit Board Solution
With the strengthening of people's security awareness, PCBsecurity products become more and more important. People are inclined to buy security products, especially surveillance cameras. In addition to various industries PCB security products and solutions, PCBA suppliers also have the demand for surveillance cameras. The overall trend of demand for IP camera circuit board is on the rise.

PCB Security in Internet of Things
Video capture equipment as an important part of traditional security, in addition to its own video elements, it is early began to "Internet of Things", such as RFID cameras, 4G cameras, 2.4G/5.8G wireless cameras, UWB cameras, Lora cameras, floor display cameras, etc. PCB security can even be said that the integration of fire protection, various types of noise, environmental weather elements. Other types of sensor data security platform is a small prototype system for the Internet of Things, but the scope is limited, and more applications of PCB communication have not been explored. HX technology can provide you custom PCB board design and custom PCB security solutions at the same time.

Advantages of HX Technology PCB Security OEM
All circuit board processing must go through IQC incoming inspection, IPQC process inspection, OQA factory inspection and other important process steps.

Engineers team is required to make constructive improvement suggestions for DFM manufacturability inspection and engineering processes in the production process to effectively improve security PCB product quality and production efficiency.

HX PCBA company implements a quick response mechanism to respond to any abnormal situation of PCB security within a short period of time.

Effectively monitor the PCB security production planning process to ensure delivery time.

HX Technology adopts protective and safe packaging to ensure the safety of PCB security products in transit.

If you want to know more applications of pcba for camera high end, please visit our website.

Instrument and Apparatus(2023年01月08日)

hx-technology — 2023-01-03T16:18:55+0900

https://www.hx-technology.com/pcba-instrument-and-apparatus/

Printed theremin circuit board assemblies are vital parts for the measurement function in the application of instruments and apparatus. For this part, we have superb techniques to make our PCBdevice and instrument meet the standard for measurement purposes and play polychlorinated biphenyls environmental effects. HX technology promises to provide high-quality instrument and apparatus services, which are ready to produce precise theremin PCB pressure sensors, PCB vibration sensors, and other different types of theremin circuit board.

PCB High-Frequency Impedance Control in Instrument and Apparatus
HX technology provides a theremin circuit board, including a PCB force sensor, PCBpressure sensor, PCB temperature sensor, PCB vibration sensor, and touch sensor PCB.

For many customers, PCB high-frequency impedance control is unfamiliar. Whether the design length of the high-frequency characteristic impedance transmission line meets the requirements of a good transmission matching environment is the key point for production. PCB impedance tester is designed by time-domain reflectometry technology, which can test the characteristic impedance of PCB trace quantitatively, automatically, quickly, and accurately, and provide test waveform analysis, statistical data analysis, automatic recording of test data, automatic issuance of test report and print.

PCB Impedance Tester Features
Mass, automatic test. Simple operation and fast test.

Suitable for PCB assembly factory fast PCBA test.

Window operating environment, friendly man-machine interface.

Automatically issue test results.

Provide single-end and differential impedance measurement.

Instrument PCBA Board(2023年01月03日)

hx-technology — 2023-01-03T16:18:08+0900

https://www.hx-technology.com/instrument-pcba-board.html

When manufacturing plenty of PCB boards, it is impossible to solder parts by hand. You will need PCB instruments to complete this step, to make a bare board, and assemble all parts onto the printed circuit board. There are many issues to consider at each stage of the assembly process, to provide a perfect functional printed circuit board. As one of the professional PCBA suppliers, HX Technology provides high-quality PCB instruments for customers.

Introduction to PCB Instrument
The basic instruments required for professional PCB assembly include:

Solder Paste Printing machine

Solder Paste Inspection (SPI) machine

Glue Dispensing machine

Pick-and-Place machine

Reflow Soldering machine

Wave Soldering machine (for through-hole components)

Automatic Optical Inspection (AOI) machine

In-Circuit Test (ICT) Fixture

Functional Validation Test (FVT) Fixture

PCB Instrument's Unified Design Environment Foundation
One of the most important keys to the success of any PCBsensor board design software is its ability to work with other tools. It can take a lot of your time and effort to force different tools to communicate with each other in the CAD program. On the other hand, tools that are designed to work together will save you a lot of trouble. Something as simple as having an easy-to-navigate user interface for compatible file formats (such as DWG files) can be helpful. If the design system consists of tools that are not initially created tools must be connected or translated, which adds time and complexity to the process. Each tool can use its own design data in its component model, netlist, file format, etc., and all of these tools must be mixed with other tools in some way. The problem can be worse in cases where tools from different systems are used. You may see misinterpretations of the data, or you may even discard some data altogether during transfer and conversion.

The Wiring, Welding Skills and Notices of the Theremin PCB(2022年12月27日)

hx-technology — 2022-12-05T12:56:10+0900

https://www.hx-technology.com/the-wiring-welding-skills-and-notices-of-the-theremin-pcb.html

Ⅰ. Wiring and soldering skills of theremin PCB

1. The edges of the input end and output end of the theremin PCB should be perpendicular to each other

The edges of the input end and the output end should be avoided adjacent and parallel to avoid reflection interference. If necessary, ground wire should be added for isolation, and the wiring of two adjacent layers should be perpendicular to each other. Parasitic coupling is easy to occur in parallel.

2. Add decoupling capacitors between the power and ground wires of the theremin PCB

Widen the width of the power and ground wires as much as possible, preferably the ground wire is wider than the power wire, their relationship is: ground wire>power wire>signal wire, usually the signal wire width is: 0.2～0.3mm, the finest width can reach 0.05 ～0.07mm, the power cord is 1.2～2.5mm.

3. Common ground processing of the digital circuit and the analog circuit of the theremin PCB

The frequency of the digital circuit is high, and the sensitivity of the analog circuit is strong. For the signal line, the high-frequency signal line should be as far away as possible from the sensitive analog circuit device. For the ground line, the entire PCB has only one node to the outside world, so it must deal with the problems of digital, analog, and common ground inside the PCB.

Inside the board, the digital ground and the analog ground are actually separated, and they are not connected to each other, but at the interface (such as a plug, etc.) connecting the PCB theremin circuit board to the outside world.

There is a short connection between digital and analog. Please note that there is only one connection point, and there are some that do not share the ground on the PCB. This is determined by the system design.

4. Shorten the wiring between theremin PCB and high-frequency components, reduce distribution parameters and mutual electromagnetic interference.

Components that are susceptible to interference should not be too close to each other, and input and output components should be kept as far away as possible. There may be a high potential difference between some components or wires, and the distance between them should be increased to avoid accidental short circuits caused by discharge.

Components with high voltage should be placed as far as possible in places that are not easy to reach during debugging. For circuits that work at high frequencies, the distribution parameters between circuit board components should be considered.

Generally, the circuit should be arranged in parallel as much as possible. In this way, it is not only beautiful, but also easy to install and weld, and easy to mass production.

Ⅱ. Power line, ground line design and decoupling capacitor configuration of theremin PCB

1. According to the current of the printed circuit board, try to increase the width of the power line and reduce the loop resistance. At the same time, make the direction of the power line and the ground line consistent with the direction of data transmission, which helps to enhance the anti-noise ability.

2. The principles of ground wire design are:

(1) The digital ground is separated from the analog ground. If there are both logic circuits and linear circuits on the circuit board, they should be separated as much as possible.

The ground of the low-frequency circuit should be single-pointed and connected to the ground as much as possible. When the actual wiring is difficult, the circuit board can be partially connected in series and then connected to the ground. The high-frequency circuit should be grounded at multiple points in series, the ground wire should be short and leased, and the grid-like large-area ground foil should be used around the high-frequency component as much as possible.

(2) The grounding wire should be as thick as possible. If a long line is used for the ground wire, the ground potential changes with the current, which reduces the noise resistance. Therefore, the wifi circuit board ground wire should be thickened so that it can pass three times the allowable current on the printed board. If possible, the grounding wire should be 2~3mm or more.

(3) The grounding wire forms a closed loop. For printed boards composed of only digital circuits, the grounding circuits are mostly arranged in closed loops to improve noise immunity.

3. Theremin PCB decoupling capacitor configuration: One of the conventional methods of design custom PCB is to configure appropriate decoupling capacitors on each key part of the printed board.

The general configuration principles of decoupling capacitors are:

(1) Connect a 10~100uf electrolytic capacitor across the power input. If possible, it is better to connect to 100uF or more.

(2) In principle, each integrated circuit chip should be equipped with a 0.01pF ceramic capacitor. If the gap of the circuit board is not enough, a 1-10pF capacitor can be arranged for every 4~8 chips.

(3) For devices with weak anti-noise ability and large power changes when shutting down, such as RAM and ROM storage devices, a decoupling capacitor should be directly connected between the power line and the ground line of the chip.

(4) Capacitor leads should not be too long, especially for high-frequency bypass capacitors.

As a PCBassembly frame company, we will do our best to meet all the needs of customers.

Differences Between PCBA Boards and PCB Boards(2022年12月26日)

hx-technology — 2022-12-05T12:55:28+0900

https://www.hx-technology.com/differences-between-pcba-boards-and-pcb-boards.html

As we know, many people are not unfamiliar with PCB circuit boards, and may be heard often in daily life, but they may not know much about PCBA, and may even be confused with PCB. So what is a PCB? How did PCBA evolve? What is the difference between PCB and PCBA? Let HX ELECTRONIC introduce it in detail below.

Ⅰ. About the power supply PCB board

The power supply PCB board is the abbreviation of Printed Circuit Board, translated into Chinese, which is called printed circuit board. Because it is made by electronic printing, it is called "printed circuit board".

PCB is an important electronic component in the electronics industry, and the power supply PCB board is the support of the electronic components and the carrier of the electrical connection of the electronic components.

PCB has been extremely widely used in the manufacture of electronic products. The unique characteristics of PCB are summarized as follows:

1. High wiring density, small size and light weight, which is conducive to the miniaturization of electronic equipment.

2. Due to the repeatability and consistency of the power supply PCB board graphics, the wiring and assembly errors are reduced, and the maintenance, debugging and inspection time of the equipment is saved.

3. It is conducive to mechanization and automated production, improves labor productivity, and reduces the cost of electronic equipment.

4. The design can be standardized to facilitate interchangeability.

Ⅱ. About PCBA boards

PCBA is the abbreviation of Printed Circuit Board + Assembly, which means that PCBA passes through the entire manufacturing process of PCB blank board SMT and then DIP plug-in.

Note: Both SMT and DIP are ways to integrate parts on the PCB. The main difference is that SMT does not need to drill holes on the power supply PCB. In DIP, the PIN pins of the parts need to be inserted into the holes that have been drilled.

SMT (Surface Mounted Technology) surface mount technology mainly uses mounters to mount some micro-small parts on the PCB. The production process is: power supply PCB board positioning, printing solder paste, mounter mounting, and return welding furnace and finished inspection.

DIP stands for "plug-in", that is, inserting parts on the power PCBA. This is the integration of parts in the form of plug-ins when some parts are larger in size and are not suitable for placement technology.

The main production process is: sticking adhesive, plug-in, inspection, wave soldering, printing and finished inspection.

Ⅲ. The difference between PCBA boards and PCB boards

1. The difference in function

The role of PCB is to make a program (including data) that cannot run independently in a multi-program environment, become a basic unit that can run independently, a process that can be executed concurrently with other processes; it is a process that can be executed by the process scheduler in the process. The program code segment executed on the CPU.

Excellent circuit design in PCBA board can save production cost and achieve good circuit performance and heat dissipation performance.

2. The difference in essence

PCB is the only sign of the existence of a process, and the PCB process control block is a static description of the process. PCB is the support of electronic components and the provider of circuit connection of electronic components.

The PCBA board is essentially a production process, and the power PCB empty board goes through the SMT assembly or the entire manufacturing process of the DIP plug-in.

From the above introduction, it can be seen that PCBA generally refers to a processing process, which can also be understood as a finished circuit board, that is, PCBA can be counted after all the processes on the PCB board are completed. The PCB assembly supplier refers to an empty printed circuit board with no parts on it.

So in general: the PCBA board is a finished board; the PCB board is a bare board.

There are many PCBassembly suppliers in China, but we are one of the nest choices for you.

Welding Process of PCB Telecom(2022年12月20日)

hx-technology — 2022-12-05T12:54:56+0900

https://www.hx-technology.com/welding-process-of-pcb-telecom.html

Ⅰ. Characteristics of PCB telecom

PCB telecom is the provider of electrical connection of electronic components. It has the characteristics of high wiring density, lightweight, thin thickness, and good bending. And it can make the circuit miniaturized and intuitive, which plays a vital role in the mass production of fixed courses and optimizing the layout of electrical appliances. Various matters need to be paid attention to in circuit board welding. Otherwise, it is easy to cause damage to the PCB board or components. What about the welding process of PCBtelecom?

Ⅱ. Welding process of PCB telecom

1. Welding materials

(1) Solder: sn60 or Sn63 solder is conforming to general standards, or hl-snpb39 tin-lead solder is usually used.

(2) Flux: rosin flux or water-soluble flux can usually be used, and the latter is generally only used for wave soldering.

(3) Cleaning agent: it shall ensure no corrosion and pollution to the PCB telecom. Generally, absolute ethanol, trichlorotrifluoroethane, isopropanol, aviation washing gasoline, and deionized water shall be used for cleaning. The specific cleaning agent shall be selected according to the process requirements.

2. PCB telecom welding tools and equipment

(1) The reasonable selection of power and type of electric soldering iron is directly related to improving welding quality and efficiency of BMS PCB board.

(2) Wave soldering machines and reflow soldering machines are welding equipment suitable for industrial mass production.

3. Preparation before welding

(1) Check whether the model, specification, and quantity of components meet the requirements according to the list of components.

(2) The welding personnel shall wear anti-static wrist and confirm that the constant temperature soldering iron is grounded.

4. Assembly and welding sequence

The assembly and welding sequence of components of PCB telecommunication: a resistor, capacitor, diode, triode, integrated circuit, and high-power transistor, and other details are small first and then prominent.

5. Welding process

Manual plug-in, manual welding, repair, and inspection are mainly required in the welding process of BMS PCB.

(1) Select the corresponding model according to the production task and check whether the model of the incoming PCB telecom is correct and whether the circuit board is damaged.

(2) Check whether the surface of the PCB telecom is clean and free of dust, oil stain, fingerprint, etc. If it is not clean, it can be properly cleaned with alcohol.

(3) Select corresponding devices and carefully check the model and quantity of machines. At the same time, check whether there are damage or rust marks on the device surface and pins and other factors affecting the device performance.

(4) After the model and quantity of the device and PCB telecom are confirmed, plug the device into the circuit board according to the correspondence between the device label and the position on the circuit board.

(5) Weld all devices according to the welding requirements to ensure no missing welding, false welding, etc.

(6) Cut off the excess pins after welding the PCB telecom.

(7) Check all welding joints for nonconformities and repair them, if any.

(8) After welding, the PCB telecom must be thoroughly cleaned in time to remove residual flux, oil stain, dust, and other dirt. The specific cleaning shall be carried out according to the process requirements.

As one of pcb assembly suppliers, we will offer kinds of related products for sale, anything you need, please contact us.

How to Judge Whether the PCB Design Uses Matte Finish?(2022年12月19日)

hx-technology — 2022-12-05T12:54:10+0900

https://www.hx-technology.com/how-to-judge-whether-the-pcb-design-uses-matte-finish.html

Ⅰ. How to judge whether the matte finish is used in PCB design

When creating the best bluetooth circuit board design, one of the factors that must be considered is the solder resist layer and whether to use a matte finish or bright finish. Most manufacturers will default to the illuminated surface, which is the most popular choice of the two.

The main difference between the two types is aesthetics. Glossy solder will have light reflection and lighter color, while matte is dull and dark. The matt solder resists being softer, while the bright light has a strong shell finish. In PCBA(printed circuit board assembly) manufacturing, there is no difference in the process. If any, the cost of design custom PCB difference is tiny.

Matte finishes may be more easily scratched due to soft finishes, but scratches are more evident on bright finishes. However, due to the high reflectivity, there may be problems in the visual system during the assembly of the glossy solder mask by PCB assembly suppliers. When using glossy film, the film removal around the reference point plays an essential role in the optical system.

Ⅱ. Causes of solder ball formation on PCBA China

1. Glass transition temperature.

2. Surface energy.

3. Hardness.

4. Flux type.

5. There is moisture.

6. Surface roughness.

Although surface roughness has always been a specific factor in the production of solder balls, its exact mechanism has not been fully understood. Molten solder with a rough (matte) surface is different from molten solder with a smooth surface - used for masks and laminates of various PCB solders. The molten solder forms a convex meniscus on the rough surface, and on the smooth surface, the molten solder forms a concave meniscus. Convex and concave surfaces reduce the attachment area of the solder ball, so the solder ball will not adhere to the matte surface like a smooth surface.

Many studies on gloss level and its correlation with welding defects show that the gloss of photo imaging will affect the number of welding defects in the wave soldering process of PCBA. These welding defects are directly proportional to the glow. With the decrease of gloss, the reduction of solder ball level is faster than the number of welding short circuits and bridges. In other words, to reduce or eliminate solder short circuit, the required gloss is lower than that needed to reduce solder ball.

Switching Time and Particularity of PCB Assembly(2022年12月13日)

hx-technology — 2022-12-05T12:53:36+0900

https://www.hx-technology.com/switching-time-and-particularity-of-pcb-assembly.html

Ⅰ. Introduction to custom PCBassembly time

The assembly of electronic products has brought significant challenges to the production and operation scheduling because of the large number and variety of components and the short life cycle of electronic products. Multi-type, small-batch, and variable batch has become the mainstream production mode of electronic manufacturing. In this mode, the switching time between multiple varieties accounts for an increasing proportion of assembly time.

The PCB assembly line of the circuit board enclosure also includes a plate feeder, screen printer, glue dispenser, reflow soldering and curing furnace, plate collector, and other equipment. These equipment are connected in series to form a PCB assembly line. However, these auxiliary equipment do not constitute the bottleneck process of the whole pipeline, so they are omitted in modeling.

Each Mounter can accommodate 20 feeding slots, and each element occupies one feeding slot on the Mounter. Generally speaking, the number of component types required for a single variety PCB does not exceed the capacity of the feeder. Still, the total number of component types needed for a multi-variety PCB usually exceeds the feeder's ability.

Ⅱ. Switching time of PCB assembly

In PCB fabrication companies, the components required by different types of PCB are placed on these feeding slots. The taking and pasting device removes the components from the feeding slot and pastes them to the designated position on the PCB. According to the survey data of the empirical research object, the average time for a high-speed Mounter to install a component is 0.06s, and the average time for switching a feed tank is 180s. The multi-functional Mounter has two worktables, but only one worktable works, and the other worktable is only used to place significant or special-shaped components. Each worktable accommodates ten feeding slots. It takes 0.18s to mount one component on average, and the average time to switch one feeder is 220s.

When switching between different types of PCB, the Mounter needs a particular preparation switching time, which is usually about six times the switching time of a component feeding slot, i.e., the 1200s. Thus, switching time plays a vital role in the assembly process of electronic products.

Ⅲ. Scheduling of different kinds of PCB assembly

In a multi-variety and small-batch environment, PCB is usually grouped first. PCB with similar characteristics are divided into a group so that in the same group, the assembly between different types of PCB does not need to replace the feeder or switching time; However, when the feeder needs to be replaced between the two sets of PCB, the switching time between them needs to be considered.

According to this, the PCB production scheduling problem is divided into two levels: the first is called the board-level scheduling problem, which is to determine the production order between PCB in a PCB group. The second level scheduling problem is called the group-level scheduling problem, which determines the production order among PCB organizations.

As a pcb assembly company, we will do our best to meet all the needs of customers.

The Factors Affecting PCB Fabrication Price(2022年12月12日)

hx-technology — 2022-12-05T12:52:53+0900

https://www.hx-technology.com/the-factors-affecting-pcb-fabrication-price.html

Ⅰ. Different materials lead to PCB fabrication price diversity

Taking the ordinary double-sided board as an example, the board materials generally include FR-4, CEM-3, etc. The board thickness varies from 0.2mm to 5.0mm. The copper thickness varies from 0.5oz to 3oz of which causes substantial price differences in the board material. There is also a specific price difference between ordinary thermosetting oil and photosensitive green oil in a solder resist ink. So the price diversity is caused by the difference in materials.

Ⅱ. Different production processes lead to PCB fabrication prices diversity

Different production processes will cause extra costs to PCB fabrication companies. For example, gold-plated board and tin spray board, Gong board and punch mould with shape, silkscreen line, and dry film line will form different costs and result in price diversity.

Ⅲ. Different making difficulties lead to PCB fabrication price diversity

Even if the materials and processes are the same, the difficulty of PCB fabrication itself is different, which will lead to other PCB appliances costs. Because the problematic blackboard newspaper has a high scrap rate, the cost will inevitably increase, resulting in different prices.

Ⅳ. Different customer requirements will also lead to different prices

The level of customer requirements will directly affect the yield of PCB fabrication manufacturers, resulting in different costs for printed circuit board manufacturers and finally leading to the variability of product prices.

Ⅴ. Price diversity caused by different PCB fabrication manufacturers

Different costs will be generated for the same product due to other process equipment and technical levels of different manufacturers. Nowadays, many manufacturers like to produce tin spray plates because of their simple process and low cost. However, some manufacturers have a gold-plated plate, and the scrap rate increases, which increases the price.

Ⅵ. Price difference caused by different payment methods

At present, PCB fabrication manufacturers generally adjust PCB prices according to different payment methods with varying ranges, which also leads to price differences.

Ⅶ. Regional differences lead to price diversity

In terms of geographical location, there are specific differences in prices in different regions from south to north. So regional differences also lead to price diversity.

HX Electronic Technology Co., Ltd. specializes in PCBassembly house. Our PCB assembly suppliers provide services include PCB fabrication, component procurement, SMT, and THT. Our products are widely used in industrial controllers, medical equipment, telecommunications equipment, environmental protection equipment, instruments, security systems, intelligent electronic equipment, onboard electronic equipment, consumer electronics, etc. We are devoted to providing customers with high quality, fast delivery, and low price services. Welcome to contact us for more information.

How to Test the Function of PCB Board?(2022年12月05日)

hx-technology — 2022-12-05T12:52:17+0900

https://www.hx-technology.com/how-to-test-the-function-of-pcb-board.html

This article introduces some factors and countermeasures that should be considered in the successful implementation of PCB functional testing.

1. PCB function test

PCB test is becoming more and more important, but like online testing, the development of technology and PCB design will limit the scope of testing. Although great progress has been made in the PCB testing software, which helps overcome some of these difficulties, there are still many problems to avoid and more careful preparations if you want to successfully implement functional testing according to your testing strategy.

2. The impact of PCB functional testing

The test implementation method is affected by factors such as budget, output, and product under test (UUT) design. It is the last item that has the greatest impact on what can be measured. Budget and output will limit the items tested. In order to get the highest possible fault coverage in the test, attention must be paid to the selection of components and the PCB layout during the design stage. Unfortunately, this is not always the case, and eagerness to enter the market and intense development often disrupt your wishful thinking.

Here is a preliminary analysis of how to deal with these restrictions. Some concessions that have to be made for testing (especially in the early stages of design) may affect the design, but make PCBA check easier and improve test failure coverage.

Please note that the following problems and suggestions are not something that every test engineer has to face or need to solve. Many of these problems will affect each other. Therefore, each problem should be evaluated and applied flexibly when needed.

As a pcb assembly factory, we can offer different kinds of PCBdevice for sale, anything you need, please contact us.

What is PCBA Test(2022年11月04日)

hx-technology — 2022-11-04T17:03:20+0900

https://www.hx-technology.com/what-is-pcba-test.html

What is PCBA Test

PCBA Test is electrical conductivity and input/output value-based test of PCBA boards with electronic components mounted on them.

Significance of PCBA testing
In the design of PCB circuit boards, there are numerical relationships between different test points such as voltage and current. But the PCBA production and processing process is very complex, including the PCB board process, component procurement and inspection, SMT assembly, DIP plug-in, PCBA test, and other important processes, in the production and processing process, maybe due to equipment or improper operation of various problems, so you need to use professional testing equipment or manual operation of the multimeter way to test the test points, in order to verify whether the actual PCBA board meets the design custom PCB requirements. In order to verify whether the actual PCBA board meets the design requirements, to ensure that each product will not have quality problems.

Purpose of PCBA Check
Improve the product qualification rate.

PCBA check method: Place the product about 40 cm from the eyes, about 45 degrees up and down, and inspect with visual inspection or triple magnification.

PCBA check standard: Tested according to QS9000 standard.

Sampling scheme: Single sampling according to MIL-STD-105E Class II standard type.

Criteria for determining the inspection: Seriously present defects (CR) AQL 0%.

A major defect: (MA) AQL 0.4%.

A minor defect: (MI) AQL 0.65%.

As a professional PCBA company, we provide pcb green, epa PCBguidance, pcb testing machine, 5g PCB, bluetooth headset circuit board and etc. Want to know whats PCBA or more? Please contact us.

Medical Device(2022年11月04日)

hx-technology — 2022-11-04T17:02:58+0900

https://www.hx-technology.com/pcba-medical-device/

Almost every medical equipment requires a full form of pcb in medical . Ultrasonic therapy equipment and blood pressure monitors are a few examples of standard medical equipment, and all of them count on PCBs to kick in. HX technology aims to provide multiple high-quality medical device products, including ultrasound machine PCB, endoscope PCB and glucometer PCB board.

The trend of PCB Medical Industry
The medical field is not like it used to be. Advances in technology have revolutionized the industry. This change is even more evident in electronic diagnostic, research, and treatment systems and tools. Every day, several complex electronic devices and instruments are introduced to simplify various medical procedures. This growth has largely benefited the PCBA technology industry because, without PCB in medical, new inventions would not be impossible. To meet the ever-changing needs of medical device and diagnostic machine manufacturers, today's PCB manufacturers are manufacturing extremely simple parts into highly complex PCB in medical industry. Using specialized high-speed laminates, copper and aluminum substrates, ceramics, and coatings, PCB manufacturers can make these boards best suited for medical industry applications.

Custom Medical PCB Assembly
Customization of PCB in medical is the trend today. The medical industry has chosen the same approach when it comes to PCB. Customers can provide the correct specifications with the full form of PCB in medical for board size in X-direction, board size in Y-direction, total number of holes, minimum alignment and pitch size in inches, board material, number of layers, surface coating, etc. Therefore, the manufacturer will work according to the given specifications and deliver the right product for your application.

As a professional pcb assembly factory, we provide pcb green, epa PCBguidance, pcb testing machine, 5g PCB, bluetooth audio receiver circuit board and etc. Want to know PCBmedical meaning or more? Please contact us.

Intelligent Home Appliances(2022年11月04日)

hx-technology — 2022-11-04T17:02:34+0900

https://www.hx-technology.com/pcba-intelligent-home-appliances/

Intelligent home appliances are popular nowadays. There are a lot of options and devices available in the market. New launches of smart devices occur every day and you have to participate in the updates with the new one. HX technology is concentrated on providing a PCBA section of smart home products, including battery PCB board, smart home PCB solar power generation PCB board, and other pcba kitchen appliances . We promise that HX technology will give our customers the best BMS PCB with the most competitive BMS PCB price.

1. The degree of factory specialization

PCBA company production equipment is equipped with a complete picture.

The processing capacity of each device, whether it meets the processing process requirements of your circuit board

PCB processing factory has not passed the ISO9001 quality management system certification.

2. Service awareness

3. Industry experience

4. Price

The price of home automation PCB processing is relatively transparent.

As a professional pcb assembly company, we provide pcb green, epa PCBguidance, pcb testing machine, 5g PCB, bluetooth circuit board and etc. Want to know more? Please contact us.

Environmental Protection Equipment(2022年11月04日)

hx-technology — 2022-11-04T17:02:11+0900

https://www.hx-technology.com/pcba-environmental-protection-equipment/

Nowadays, environmental protection has become more and more popular. The green PCBboard products provided by HX technology could meet your specific requirements. There is multiple environmental protection green PCB boards you can choose from in our company, including CCTV camera PCB board, CCTV camera PCB board, relay PCB board, environmental PCB, and so on. We promise that HX technology will give our customers the best green PCB board with the most competitive PCB board price.

HX technology pursues zero defects, starting from the smallest details, to fully ensure that all aspects of the customer's needs for the green PCB board product. As the quality management goal of continuously improving the service level, HX technology uses the excellent management system created by the ISO International Organization for Standardization, so that the customers can rest assured to use our green PCB board products.

As for green oil, its solder resists ink is the oldest, cheapest, and most popular.

There are many advantages of green PCB board:

Secondly, in SMT placement processing, the tin, placement, and AOI verification of these steps, all need optical positioning calibration. Green backplane instrument identification is more friendly.

Green PCB boards are also more environmentally friendly, and the wasteboard for the high-temperature recycling process, will not release toxic gases.

As a professional PCBassembly supplier, we provide PCBA china, pcb green, epa PCBguidance, pcb testing machine, 5g PCB, bluetooth PCBboard and etc. Want to know more? Please contact us.

PCB Functional Test & Programming(2022年11月04日)

hx-technology — 2022-11-04T17:01:45+0900

https://www.hx-technology.com/pcb-assembly-service/pcb-functional-test-programming/

If you want to ensure the good quality for delivery of every board, the PCB programming, PCBprogramming and PCB functional test is the best way to test.

PCBA Online Programming:

Before finishing welding, we usually program the microcontroller in the PCBA board to enable the microcontroller to achieve specific functions. PCB testing software will improve efficiency and reduce production costs.

PCBA Test

Including ICT test, FCT test, Burn-In Test, fatigue test

ICT Test (In-Circuit Test)： Through the test probe contacting the test point of the PCBA, the main PCBA test circuit continuity, voltage and current value, fluctuation curve, amplitude, noise, etc.

Product type

Structure (single PCB / pre-made PCB / final product)

Test specification plan:

test point expected production (per line / per day / per shift, etc.)

Expected failure type

PCB Functional Test Requirements
PCB Functional Test & Programming Quality Control
FCT Test (Functional Test):

Burn-In Test：

After the online PCB programming and FCT for the PCB board, we can simulate user input and output for a long time and periodically test its durability and welding reliability.

Fatigue test：

In order to make sure nothing goes wrong, we will carry out strict inspection procedures to ensure the delivery of high-quality products.

What are the PCB board programming software?
There are three most mainstream PCB board programming softwares that people currently use.

Altium Designer

PADS

Provide interfaces with other PCB design software, CAM processing software, mechanical design software. This software has a small interface menu, and is not difficult to get started.

This software has a high market share in consumer electronics, is relatively easy to get started, and is suitable for most small and medium-sized enterprises.

Allegro

Cadence company developed a software, and came with simulation tools, to achieve signal integrity simulation, power integrity simulation.

Significance of PCB Functional Test

As a professional PCBassembly supplier, we provide pcb assembly frame, PCBboard programming , programming pcb board , pcb testing machine, 5g PCB, PCBmeaning medical and etc. Want to know more? Please contact us.

Custom PCB Project(2022年11月04日)

hx-technology — 2022-11-04T17:01:21+0900

https://www.hx-technology.com/custom-pcb-project/

DRC Check-in Design Custom PCB
In the manufacturing industry, does the process designer need to check the design results after design custom PCB? The answer is yes.

DRC check, also known as design rule check, which is PCB design software (EDA) used in the PCB Layout process in real time to check and find the design does not match the intended design specifications. DRC check is used to ensure the correctness of the design and meet the conventional design specifications as a starting point, is an indispensable part of the custom PCBboard . Based on the role and purpose of the DRC, it is generally no more than 100 check line items.

Meet the DRC check is the most basic requirements of design custom PCB, to meet the DRC does not necessarily mean to meet the manufacturability requirements.

DFM Check-in Design Custom PCB
DFM check, also called design for manufacturability analysis, is based on custom PCB data through real 3D component models and actual manufacturing process simulation, a comprehensive design review of PCB and PCBA manufacturability before fabrication. The first time to find the design custom PCB defects or deficiencies, process difficulties, manufacturing risks, design custom PCB and process mismatch factors, etc., to ensure that the custom pcb design service and process capabilities fully match. As a PCBA company, HX Technology will essentially reduce the number of trial production, save production costs, and improve product reliability.

DFM is a bridge between design custom PCB and manufacturing process, which belongs to the category of process design, through which you can find the mismatch between design and manufacturing process factors, assess the manufacturing difficulty, manufacturing risk, etc. These are not covered by DRC in custom circuit board design software.

As a professional pcb assembly factory, we provide custom PCBassembly, order custom circuit board, 5g PCB, medical PCBassembly and etc. Want to know custom PCBprice or more? Please contact us.

Control PCBA Board(2022年11月04日)

hx-technology — 2022-11-04T17:00:58+0900

https://www.hx-technology.com/control-pcba-board.html

Features of SMT PCBA
Our SMT Fast PCBA can be used for power supply, signal transmission, heat dissipation, and provide structure.

Able to withstand the temperature and time of curing and soldering.

Flatness meets the requirements of the manufacturing process.

Fast PCBA is suitable for rework work.

Suitable for the substrate manufacturing process.

Low dielectric number and high resistance.

As one of the most professional PCBA suppliers, we provide blue PCBA, 5g PCB, medical PCBA and etc. Want to know more? Please contact us.

Company Profile(2022年11月04日)

hx-technology — 2022-11-04T17:00:32+0900

https://www.hx-technology.com/company-profile/

As a PCB assembly company, a Chinese national high tech enterprise and SMT electronic technology limited, HX Electronic Technology Co., Ltd. is specialized in PCB assembly service, including PCB fabrication, components sourcing, SMT, and THT. Our products are widely applied in industrial controllers, medical equipment, telecom devices, environmental protecting equipment, instruments and meters, security system, smart electronic devices, vehicle electronic devices, consumer electronics, and so on.

With a total investment of $10 million and covering an area of more than 10000 square meters, HX Technology now has more than 300 employees, including 50 senior engineering and technical personnel, 50 supply chain management staff, and 30 components sourcing staff amount them. Our professional PCB assembly factory and SMT electronic technology limited are equipped with 6 automatic SMT production lines, 2 THT production lines, 2 assembly lines, and a large number of advanced inspection and testing equipment. Our current daily production capacity is 10 million SMT points /day, 2.5 million THT pieces /day, and 5000 electronics assembly units/day.

As one of the most professional pcb fabrication suppliers, we provide 5g pcb design, 5g PCB, medical PCB and etc. Want to know more? Please contact us.

5g Era Of The Big Winner-PCB(2022年11月04日)

hx-technology — 2022-11-04T17:00:02+0900

https://www.hx-technology.com/5g-era-of-the-big-winner-pcb.html

Why PCB is the winner in the 5G era?
First, 5G base stations compared to 4G will have an increase in the number. According to public

Automotive electronics, electrification, and intelligence will bring incremental market space for PCBs
First, intelligent driving & automotive electronics: the electronicization of the car will bring the growth of automotive PCB usage, automotive electronics accounted for about 30% of the vehicle BOM in 2010, the proportion is expected to rise to 50% by 2030. The current mid-range models PCB use an area of about 0.5 to 0.7 square meters, the economic car PCB use an area of 0.3 to 0.4 square meters, assuming that the average PCB assembly price is 1000 yuan / square meter, the average value of about 800 yuan per car, luxury cars PCB use an area of about 2.5-3 square meters, the value of more than 2500 yuan per car, with the deepening of automotive electronics, automotive PCB demand area will gradually increase. Automotive PCB demand area will gradually grow. In addition, the advanced driver assistance system for intelligent driving ADAS also requires a large number of PCBs.

As one of the most professional PCBfabrication suppliers, we provide 5g pcb design, 5g PCB, PCBin medical and etc. Want to know more? Please contact us.

Learn About Highly Customized PCB Assembly Services(2022年10月25日)

hx-technology — 2022-10-19T17:15:42+0900

https://www.hx-technology.com/pcb-assembly-service/pcb-fabrication/

1. PCB customization

With the multiplication of discovery and innovation of new concepts and features, all products and processes that dominate the market have adopted customization. From computers, automobiles, airplanes, robots, telecommunications, pharmaceuticals, national defense, wagon wheels to electronic household appliances, there is a customized concept.

Modeling, modification, upgrade, reprocessing, change and control of different versions help to provide outstanding advantages to paste and meet the exact needs of customers. The complete custom circuit board design has high applicability in the electronic field.

2. PCB customized service

TechnoTronix is one of the leading suppliers of electronic solutions, providing customers in various industries with high-end customized services required by PCB fabrication companies. It has a standardized process of development and customization for functional design according to project specifications.

TechnoTronix adopts customization in its products and products. The PCB assembly process provides a total solution in the prototype by manufacturing the most advanced layout. From small updates to new product releases, it has a unique way to use advanced technology and compact customization tools for mass customization and prototyping needs.

As one of the most professional PCBA suppliers, we provide pcb assembly frame, PCBfabrication services, telecom pcb assembly, environmental PCB and etc. Want to know more? Please contact us.

How Does PCB Assembly Work?(2022年10月24日)

hx-technology — 2022-10-19T17:15:18+0900

https://www.hx-technology.com/

The assembly or manufacturing process of a printed circuit board (PCB) includes many steps.

All these steps should go hand in hand to achieve good PCB assembly (PCBA). The synergy between one step and the previous step is very important. In addition to this, the input should receive feedback from the output, which makes it easier and more convenient to track and resolve any errors in the early stages. What steps are involved in the PCB assembly process? Read on to get the answer to this question.

The PCBA and manufacturing process involve many steps.

Step 1: Add solder paste: This is the initial stage of the assembly process. At this stage, solder paste is added to the component pads wherever soldering is required. Put the solder paste on the pad and paste it in the correct position with the help of the soldering screen. This screen is made of PCB files and has holes.

Step 2: Place the component: After adding the solder paste to the component pad, it is time to place the component. The theremin circuit board passes through a machine that precisely places these components on the pads. The tension provided by the solder paste holds the components in place.

Step 3: Reflow oven: This step is used to permanently fix the components on the board. After placing the components on the board, the PCB passes through the reflow oven conveyor belt. The controlled heat of the oven melts the solder added in the first step, thereby permanently connecting the components.

Step 4: Wave soldering: In this step, PCB assembly factory makes passed through a wave of molten solder. This will establish electrical connections between the solder, PCB pads and component leads.

Step 5: Cleaning: Up to this step, all welding processes have been completed. During the soldering process, a large amount of flux residue will form around the solder joints. As the name suggests, this step involves cleaning flux residues. Clean the flux residue with deionized water and solvent. Through this step, PCB assembly is completed. The next steps will ensure that the assembly is completed correctly.

Step 6: Testing: At this stage, the PCB assembly is completed and inspections are started to test the position of the components. This can be performed in two ways:

Manual: This kind of inspection is usually carried out for smaller components, and the number of components does not exceed one hundred.

Auto: Perform this check to check whether there are bad joints, wrong components, wrongly placed components, etc.

Reference website:http://www.elecfans.com/d/1384268.html

As one of the most professional PCBA suppliers, we provide PCBassembly house, PCBenclosure design, pcb fabrication services, wifi PCBboard and etc. Want to know more? Please contact us.

How is PCB Fabricated?(2022年10月23日)

hx-technology — 2022-10-19T17:14:51+0900

https://www.hx-technology.com/custom-pcb-project/

Although PCB is already well-known, it can even be said that we deal with it every day.

So, what exactly is it? How is it produced? How many production processes are there? Let's walk into the PCB fabrication companies in Shenzhen, China for some exploration!

1. PCB fabrication process

1) Receiving and inspection of design custom PCB. The engineering department of the PCB factory accepts and checks the design board files sent by customers.

2) Print the design into transparencies.

3) Cutting and edge polishing of glass fiber.

4) Inner layer production. The top and bottom layers of glass fiber are covered with plastic dry film and are hardened under UV exposure.

5) Etching process. The purpose of the entire etching process is to remove excess copper and photoresist from the copper plate, and complete the prototype of the PCB after a series of processes.

6) Automatic optical inspection (AOI) and editing vacuum (PP). The purpose of automatic optical inspection is to check the etching of the inner layer to ensure that the etching of the inner layer is normal.

7) High temperature and high pressure processing. After 200 degrees Celsius and 27 kilograms of pressure, the epoxy resin in the melted prepreg glued the PCB board on both sides to complete the lamination.

8) Drilling process. Drilling is to use a machine that automatically replaces the drill bit to drill out the required holes according to the design.

9) Electroplating process. Electroplating requires a very complete chemical process to be completed.

10) Solder mask and drying. The electroplated PCB board needs to undergo an automatic optical inspection (AOI) again, and then the green liquid solder mask can be applied and then dried.

11) Welding mask removal, washing and silk screen.

12) Hot air treatment (HASL).

13) PCB cutting.

14) Short circuit and open circuit test.

15) Packaging and shipping. PCB packaging and transportation are also very particular. After a series of processes such as sorting, packaging, and labeling are completed, they can be shipped to customers.

2. Summary of PCB fabrication
After reading the above sharing, everyone must have discovered that the factory production of PCB boards has a total of about 15 processes, whether it feels particularly complicated. In fact, with the development of technology, many tasks that require manpower are slowly being replaced. The industrial system and industrial technology are constantly being improved and updated. I believe that in the near future, the PCB industry will also have many new innovations.

As one of the most professional pcb assembly suppliers, we provide PCBenclosure box, pcb boxes, wifi circuit board and etc. Want to know more? Please contact us.

Common Problems and Solutions of PCB Design(2022年10月22日)

hx-technology — 2022-10-19T17:14:24+0900

https://www.hx-technology.com/custom-pcb-project/

How to choose a PCB board?
PCB board must be selected to meet the design requirements and mass production and cost to achieve a balance. Design requirements include both electrical and mechanical parts. Usually in the design of a very high-speed PCB board (greater than GHz frequency) when the material issue will be more important. For example, now commonly used FR-4 material, in a few GHz frequency dielectric loss will have a significant impact on signal attenuation, may not be suitable. In terms of electrical, we should pay attention to the dielectric constant, and dielectric loss in the designed frequency is suitable.

How to avoid high-frequency interference?
The basic idea of avoiding high-frequency interference is to minimize the interference of the high-frequency signal electromagnetic field,

which is also called crosstalk. The distance between the high-speed signal and the analog signal can be enlarged, or add ground guard/shunt traces in the analog signal next to. Also, pay attention to the digital ground to the analog ground noise interference.

How to solve the signal integrity problem in high-speed design?
Signal integrity is basically a matter of impedance matching. The factors that affect impedance matching are the architecture of the signal source and output impedance, the characteristic impedance of the alignment, the characteristics of the load side, the topology of the alignment architecture, etc. The way to solve the problem is to rely on termination and adjust the topology of the line.

How should connect the ground between the PCB boards?
Each PCB assembly frame is connected to each other between the signal or power in the action. For example, a board has power or signal to the

B board, there must be an equal amount of current flow from the ground back to the Aboard. The current on this ground level will find the place with the lowest impedance to flow back. Therefore, the number of pins assigned to the ground layer cannot be too small at each interface regardless of power or signal interconnection to reduce the impedance, which can reduce the noise on the ground layer. In addition, you can also analyze the entire current loop, especially the part of the current is larger, adjust the ground layer or ground connection to control the way the current goes (for example, to create a low impedance at a certain place, so that most of the current goes from this place), to reduce the impact on other more sensitive signals.

How to consider the impedance matching problem?
In the design of a high-speed PCB circuit, impedance matching is one of the elements of the design custom PCB. The impedance value and the way

the alignment has an absolute relationship, for example, is to go in the surface layer (microstrip) or the inner layer (stripline/double stripline), and the reference layer (power layer or ground layer) distance, the width of the alignment, PCB material, etc. will affect the characteristic impedance value of the alignment. In other words, the impedance value can be determined only after the wiring. General simulation software will be due to the line model or the limitations of the mathematical algorithm used and can not take into account some impedance discontinuity in the wiring situation, which can only be reserved in the schematic diagram some terminators (termination), such as series resistors, etc., to moderate the effect of discontinuity in the impedance of the line. The real fundamental solution to the problem is to avoid the occurrence of impedance discontinuity when wiring as much as possible.

As a professional PCBassembly supplier, we provide ip camera module PCBboard, ip camera PCBboard, tg113 PCBboard and etc. Want to know more? Please contact us.

What is PCBA Test(2022年10月21日)

hx-technology — 2022-10-19T17:13:53+0900

https://www.hx-technology.com/pcb-assembly-service/pcb-functional-test-programming/

PCBA Test is electrical conductivity and input/output value-based test of PCBA boards with electronic components mounted on them.

Purpose of PCBA Check
Improve the product qualification rate.

PCBA check method: Place the product about 40 cm from the eyes, about 45 degrees up and down, and inspect with visual inspection or triple magnification.

PCBA check standard: Tested according to QS9000 standard.

Sampling scheme: Single sampling according to MIL-STD-105E Class II standard type.

Criteria for determining the inspection: Seriously present defects (CR) AQL 0%.

A major defect: (MA) AQL 0.4%.

A minor defect: (MI) AQL 0.65%.

As a professional PCBA company, we provide ip camera module PCBboard, ip camera PCBboard, bluetooth circuit board and etc. Want to know more? Please contact us.

5g Era Of The Big Winner-PCB(2022年10月20日)

hx-technology — 2022-10-19T17:12:40+0900

https://www.hx-technology.com/pcb-assembly-service/pcb-assembly/

Why PCB is the winner in the 5G era?
First, 5G base stations compared to 4G will have an increase in the number. According to public

Automotive electronics, electrification, and intelligence will bring incremental market space for PCBs
First, intelligent driving & automotive electronics: the electronicization of the car will bring the growth of automotive PCB usage, automotive electronics accounted for about 30% of the vehicle BOM in 2010, the proportion is expected to rise to 50% by 2030. The current mid-range models PCB use an area of about 0.5 to 0.7 square meters, the economic car PCB use an area of 0.3 to 0.4 square meters, assuming that the average PCB assembly price is 1000 yuan / square meter, the average value of about 800 yuan per car, luxury cars PCB use an area of about 2.5-3 square meters, the value of more than 2500 yuan per car, with the deepening of automotive electronics, automotive PCB demand area will gradually increase. Automotive PCB demand area will gradually grow. In addition, the advanced driver assistance system for intelligent driving ADAS also requires a large number of PCBs.

As one of the most professional pcb fabrication suppliers, we provide theremin PCB, 5g PCB, bluetooth audio PCB and etc. Want to know more? Please contact us.

Printed Circuit Board (PCB) Basic Knowledge(2022年10月19日)

hx-technology — 2022-10-19T17:10:00+0900

https://www.hx-technology.com/the-wiring-welding-skills-and-notices-of-the-theremin-pcb.html

For PC motherboards and display cards, the most basic part is the printed circuit board (PCB: Printed Circuit Board), which is the basis for the work of various boards. For specific products, the design and manufacturing level of the printed circuit board greatly determines the indicators and final performance of the product. This article will introduce the basic knowledge of PCB, including the relevant terminology and classifications. I hope it will help friends to understand.

What is a printed circuit board?
Printed Circuit Board (PCB: Printed Circuit Board) is the basis of almost any electronic product and is found in almost every kind of electronic device.

Generally speaking, if there are electronic components in a certain kind of equipment, then they are also mounted on PCBs of various sizes.

In addition to fixing various components, the main role of the PCB is to provide the connection circuit between the components. As electronic devices become more and more complex and require more and more components, the lines and components on the PCB are becoming denser.

The circuit board itself is made of insulated and unbendable material, and the fine wiring material that can be seen on the surface is copper foil. Before being processed, the copper foil is covered with the entire board, and during the process by PCB fabrication companies. The middle part is etched off, leaving the part that is left behind to become a network of tiny lines. The printed circuit board is named after the process of forming the outline for etching, which is mostly done by printing. These lines are called conductor patterns and are used to provide circuit connections for the components on the PCB.

Relevant terminology of PCB
In order to fix components to the PCB, their pins need to be soldered directly to the wiring. On the most basic PCB (single-sided), the components are concentrated on one side and the wires are concentrated on the other side. In this way, it is necessary to punch holes in the board so that the pins can pass through the board to the other side, so the component pins are soldered on the other side. Because of this, the front and back of the PCB is called the component side (Component Side) and solder side (Solder Side).

For some of the components that may need to be frequently unplugged, such as the CPU on the motherboard, the need to give users the option to adjust, upgrade, you can not directly weld the CPU on the motherboard, then you need to use the socket. Although the socket is directly welded to the board, the components can be removed and installed at will. The socket, as shown below, allows components (here referring to the CPU) to be easily inserted into the socket and removed. The fixing bar next to the socket can hold the component in place after you insert it.

PCB connection

If two PCBs are to be connected to each other, i.e., two PCBs are physically connected in a circuit, the edge connector, commonly known as the "gold finger",

is generally required. Gold fingers contain a number of exposed copper pads, -- these copper pads are in fact part of the PCB wiring. The gold finger on one PCB is inserted into a suitable slot on the other PCB (generally called the expansion slot Slot). In the computer, such as display cards, sound cards, or other similar interface cards, are connected to the motherboard through the gold finger.

Classification of PCBs
For theremin PCB, there are various ways to classify them, among which the classification according to the number of layers is the most common.

Single-Sided Boards

As we mentioned earlier, in the most basic PCB, the components are concentrated on one side and the wires are concentrated on the other side. Because the wires only appear on one side, so we call this PCB called single-sided (Single-sided). Relatively speaking, single-sided in the design of many limitations (because there is only one side, between the wiring can not cross and must be wrapped around a separate path), in dealing with complex circuits are often unable to cope, and is now rarely used, unless the circuit is really very simple.

Double-Sided Boards

This board has wiring on both sides. However, to use the wires on both sides, there must be a proper circuit connection between the two sides to work. This circuit between the "bridge" is called the guide hole (via). Conductor holes are small holes in the PCB, filled or coated with metal, which can be connected to the wires on both sides. Because the double-sided board is twice as large as the single-sided board, and because the wiring can be interleaved (can be wrapped around to the other side), it is more suitable for use in more complex circuits than the single-sided board.

Multi-Layer Boards

In order to increase the area that can be wired, multi-layer boards use more single or double-sided wiring boards. Multi-layer boards use several double-sided boards with a layer of insulation placed between each layer and then glued (laminated). The number of layers on the board represents how many separate layers of cabling are present, usually an even number of layers and containing the outermost two layers. Most mainframe boards are 4 to 8-layer structures, although it is technically possible to achieve nearly 100-layer PCBs. Large supercomputers mostly use quite a multi-layer motherboard, but because such computers can already be replaced by many groups of ordinary computers, ultra-layer boards have gradually fallen out of use. For multilayer boards, because the layers in the PCB are tightly integrated, it is generally less easy to see the actual number.

As one of the most professional PCBfabrication suppliers, we provide 5g pcb design, PCBin medical and etc. Want to know more? Please contact us.

PCB Assembly Service(2022年09月22日)

hx-technology — 2022-09-01T18:41:34+0900

https://www.hx-technology.com/products/

HX Electronic Technology Co.Ltd is a professional PCB Assembly manufacturer. We are specialized in Electronic Manufacturing Service in the European market and the US market for more than 10 years. We can provide one-stop printed circuit board service, including PCB fabrication, component sourcing, SMT and THT. HX Technology provides one-stop PCBboard service for more than 14 years. As a professional supplier of PCBA boards, we are committed to providing high-quality PCB boards. We specialize in small and medium batch production, and HX Technology is equipped with advanced machinery and professional staff. We promise that customer needs will be quickly responded in our company. Product manufacturing follow-up is more professional. Quality control is more refined. After-sales service is more intimate. Our printed circuit board assembly services are widely applied in industrial controllers, medical equipment, telecom devices, environmental protecting equipment, instruments and meters, security system, smart electronic devices, vehicle electronic devices and so on.

PCB materials that meet international standards: high heat resistance, high glass transition temperature (Tg), low coefficient of thermal expansion, and small dielectric constant.

Update the manufacturing process and introduce advanced production equipment.

What is PCB Assembly Services
PCB assembly (pc board assembly) is one of the most important steps in PCB fabrication which includes all the components of manufacturing the complete PCB. There are two ways to make a pc board assembly; namely, Surface Mount Technique (SMT) and Through-Hole Technique (THT). SMT is a circuit assembly technology in which the pinless or short-lead surface-mounted components (SMC/SMD) are mounted on the surface of a Printed Circuit Board (PCB) or other substrate and assembled by soldering through reflow or dip soldering methods. THT uses leaded components with circuit connection leads and mounting holes designed on the printed board, and establishes long-term mechanical and electrical connections by inserting the component leads into the through-holes reserved on the PCB, temporarily fixing them and then soldering them on the other side of the substrate to form reliable solder joints.

PCB Functional Test & Programming
PCB Functional Test & Programming
HX Technology provides burning services after customers provide test plans to solve customers' complex circuit or time-consuming problems. Through the PCBA test, we can check the circuit board clearly, such as the circuit continuity, all PCBA board function, observe whether there is failure and welding reliability so on. It will avoid the generation of defective products and technical problems accuracy. Our aim is to pursue 0% complaint on quality. In order to make sure nothing goes wrong, we will carry out strict inspection procedures to ensure the delivery of high-quality products.

Advantages of HX Professional PCB Assembly Service
HX-Technology focuses on exploring the SMT patch and post-welding, world, and testing one-stop service for proofing and demonstration.

SMT production lines: 10 SMT production lines.

High-end equipment: FUJI XPF, NXT3, AIMEX III, AOI/SPI/XRAY/smart first piece tester, etc.

Full BOM material supply: RC/magnetic bead inductance/connector/vibration/two transistors and other spare parts in the warehouse.

Fast delivery: customers deliver within 8 hours, and the delivery rate exceeds 95% within 48 hours.

Minimum placement: 03015, 01005, 0201, 0402.

Accompanying hardware innovation platform: design, board manufacturing, patch PCB, component supply.

PCBA OEM services are available.

As one of the most professional PCBA suppliers, we provide PCBA china, PCBfabrication services, professional pcb assembly, smt PCBA and etc. Want to know custom PCBcost or more? Please contact us.