发明授权
- 专利标题: Method of performing solder joint analysis of semi-conductor components
- 专利标题(中): 执行半导体部件焊点分析的方法
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申请号: US427509申请日: 1995-04-24
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公开(公告)号: US5651493A公开(公告)日: 1997-07-29
- 发明人: James D. Bielick , Mark K. Hoffmeyer , Phillip D. Isaacs
- 申请人: James D. Bielick , Mark K. Hoffmeyer , Phillip D. Isaacs
- 申请人地址: NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: NY Armonk
- 主分类号: B23K31/02
- IPC分类号: B23K31/02 ; G01R31/04 ; H01L21/60 ; H01L21/66 ; H05K1/02 ; H05K3/34 ; B23K1/19 ; B23K31/12
摘要:
A method for analyzing solder joint assemblies in devices such as solder bumped silicon chips, ball grid arrays or land grid arrays is disclosed. The method includes applying a dye solution to a device under test and then causing that dye solution to penetrate any interstices between any solder interconnect and the device under test, which also includes penetrating any fractures in any joints or joint failures. Next, the dye is dried or cured so as to provide ready analysis upon the analysis portion of the method. The device under test is then caused to be separated or fractured in such a way that a seam or border of a solder joint or an attachment border may be analyzed to identify any structural failure by visually analyzing where any dye has penetrated such structural failures.
公开/授权文献
- US4994354A Optical recording media 公开/授权日:1991-02-19
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