发明名称 |
Detecting failures in printed circuit boards |
摘要 |
Detection of delaminated features on a printed circuit board. Delamination is detected by designing a sacrificial trace which is anchored by a via at one end and connects to a feature such as a pad on the other. The sacrificial trace is fragile. Delamination of the feature causes the sacrificial trace to break, interrupting an electrical circuit which is sensed to detect the failure.
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申请公布号 |
US2002101256(A1) |
申请公布日期 |
2002.08.01 |
申请号 |
US20010770944 |
申请日期 |
2001.01.26 |
申请人 |
BROWN PATRICK R.;PENNESTRI SCOTT A.;LUCE WYATT F.;FAULKNER THOMAS R. |
发明人 |
BROWN PATRICK R.;PENNESTRI SCOTT A.;LUCE WYATT F.;FAULKNER THOMAS R. |
分类号 |
G01R31/28;H05K1/02;(IPC1-7):G01R31/02 |
主分类号 |
G01R31/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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