IPC A-142-1990
印刷版成品织物织造芳纶规格
Specification for Finished Fabric Woven from Aramid for Printed Boards
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- 箭头终点方向的标准引用了起点方向的标准。
- 适用范围
- Surface Insulation Resistance (SIR) testing has been with the electronics industry since the advent of the transistor and printed circuit board. It has been used as a tool for: incoming inspection; materials investigations and qualifications; quality conformance; prediction of long-term failure mechanisms; and as a predictive tool for estimated service life.