发明授权
US5005070A Soldering interconnect method and apparatus for semiconductor packages
失效
用于半导体封装的焊接互连方法和装置
- 专利标题: Soldering interconnect method and apparatus for semiconductor packages
- 专利标题(中): 用于半导体封装的焊接互连方法和装置
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申请号: US285988申请日: 1988-12-19
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公开(公告)号: US5005070A公开(公告)日: 1991-04-02
- 发明人: John M. Altendorf , Marvin G. Wong
- 申请人: John M. Altendorf , Marvin G. Wong
- 申请人地址: CA Palo Alto
- 专利权人: Hewlett-Packard Company
- 当前专利权人: Hewlett-Packard Company
- 当前专利权人地址: CA Palo Alto
- 主分类号: H01L23/495
- IPC分类号: H01L23/495 ; H01L23/498 ; H05K3/30 ; H05K3/34
摘要:
A method and apparatus for attaching the outer leads of a semiconductor package (preferably a Tape Automated Bonded circuit) to the traces on a printed circuit board is described. The outer leads of the package are configured in an angled orientation so that the tip of each lead extends downwardly below the lower surface of the package. As a result, placement of the package against the circuit board causes the leads to be biased downwardly against the traces. In order to accomplish this, the package is secured to the board using a rigid frame structure. The frame structure urges the edges of the package against the board. This insures that the leads make electrical contact with the traces in a fast and efficient manner, while avoiding problems associated with a lack of lead coplanarity.
公开/授权文献
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