发明申请
- 专利标题: SEMICONDUCTOR DEVICE PACKAGE WITH TWO COMPONENT LEAD FRAME
- 专利标题(中): 具有两个组件引线框架的半导体器件封装
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申请号: US13348298申请日: 2012-01-11
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公开(公告)号: US20120181677A1公开(公告)日: 2012-07-19
- 发明人: Anthony C. Tsui , Hongbo Yang , Ming Zhou , Weibing Chu , Anthony Chia
- 申请人: Anthony C. Tsui , Hongbo Yang , Ming Zhou , Weibing Chu , Anthony Chia
- 申请人地址: US CA Santa Clara
- 专利权人: GEM Services, Inc.
- 当前专利权人: GEM Services, Inc.
- 当前专利权人地址: US CA Santa Clara
- 主分类号: H01L23/495
- IPC分类号: H01L23/495 ; H01L23/34
摘要:
Embodiments of the present invention relate to the use of stamping to form features on a lead frame of a semiconductor device package. In one embodiment, portions of the lead frame such as pins are moved out of the horizontal plane of a diepad by stamping. In certain embodiments, indentations or a complex cross-sectional profile, such as chamfered, may be imparted to portions of the pins and/or diepad by stamping. The complexity offered by such a stamped cross-sectional profile serves to enhance mechanical interlocking of the lead frame within the plastic molding of the package body. Other techniques such as selective electroplating and/or formation of a brown oxide guard band to limit spreading of adhesive material during die attach, may be employed alone or in combination to facilitate fabrication of a package having such stamped features.
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