integrated printed board design system ipbds can implement the process from schematic capture to layout ipbds is concurrent, and support hierarchical design.
本文描述一个在微型计算机上实现的集成印制电路板设计系统ipbds。
ipc-9151a printed board process, capability, quality and relative reliability benchmark test standard and database.
印制板工艺,容量,质量,可靠性试验标準和数据库。
the utility model is composed of a double-hole panel, screws and a printed board with elements, and a second distributer circuit is adopted.
本实用新型是由双孔面板、带元件的印制板和螺钉构成,采用的是二分配器电路。
making multilayer printed board has a complex working procedure and long period, then the reason of causing void pth is very complex.
多层印制板的制作是一个生产工序复杂且周期很长的过程,那么造成金属化孔镀层空洞的原因也就很复杂。