发明名称 |
Methods for determining bond failure modes using stress wave emission techniques |
摘要 |
As leads that have been thermocompressively bonded to ceramic substrates are pulled to destruction, stress waves are monitored and counted. The total count is compared to empirically developed ranges associated with known failures to determine the failure mode (e.g., lead failure, gold-to-gold failure, ceramic pullout).
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申请公布号 |
US4232558(A) |
申请公布日期 |
1980.11.11 |
申请号 |
US19790029174 |
申请日期 |
1979.04.12 |
申请人 |
WESTERN ELECTRIC COMPANY, INC. |
发明人 |
JON, MIN-CHUNG;PALAZZO, VITO |
分类号 |
G01N29/14;(IPC1-7):G01N29/00 |
主分类号 |
G01N29/14 |
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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