http://pastport.jp/user/jackwong1931 ja-JP As the development of electronic technology, multi-layer PCBs has been widely applied for all kinds of electronics products to satisfy the more complicated requirement in function.Multilayer PCB ApplicationsSo where is it used, the answer is anywhere, for 2019-05-07T16:24:00+0900 http://pastport.jp/user/jackwong1931/timeline/The%20Importance%20Of%20Multi-layer%20Board jackwong1931 http://pastport.jp/user/jackwong1931/timeline/The%20Importance%20Of%20Multi-layer%20Board