ICT PINS PROBLEM(请高手指教)
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ICT PINS PROBLEM(请高手指教)
HI:大家好!很高兴能在这里和大家进行交流与学习.今天我在debug pins时遇到了麻烦:有两百多个nodes测不过!A:针点没偏位.B:都在下针板.C:verify也没问题(我只是挑了一部分).D:探针行程也没问题.E:用短路板测也一样,而且更多.F:换机台也没用.G:重新跑过IPG.我不知到该怎么办了!请高手指教一二!狂谢!
[此贴子已经被作者于2006-5-8 8:23:12编辑过] |
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多说一句,verify pass并不于Pins test pass,举个例子来说吧,探针太赃,阻抗很大时,verify pass,Pins Fail. |
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