发明名称 |
Method for coining solder balls on an electrical circuit package |
摘要 |
A method and apparatus are provided for coining solder balls on an organic electrical circuit package. Generally, this method includes placing a slug on one or more of the solder balls; and applying sufficient pressure for a sufficient period of time on the slug to flatten the surface of the solder balls so as to form planar solder coins. The apparatus includes a press; a ram attached to the press; a platform for receiving the package and a slug placed upon the solder balls.
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申请公布号 |
US5853517(A) |
申请公布日期 |
1998.12.29 |
申请号 |
US19960745400 |
申请日期 |
1996.11.08 |
申请人 |
W. L. GORE & ASSOCIATES, INC. |
发明人 |
PETEFISH, WILLIAM GEORGE;PIPER, BOYDD;WALKER, THOMAS E. |
分类号 |
H01L21/48;H05K3/34;(IPC1-7):H05K3/00 |
主分类号 |
H01L21/48 |
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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