发明授权
- 专利标题: Methods and apparatus for flip-chip-on-lead semiconductor package
- 专利标题(中): 倒装芯片导联半导体封装的方法和装置
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申请号: US12112192申请日: 2008-04-30
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公开(公告)号: US08785250B2公开(公告)日: 2014-07-22
- 发明人: Nirmal Sharma , Virgil Ararao
- 申请人: Nirmal Sharma , Virgil Ararao
- 申请人地址: US MA Worcester
- 专利权人: Allegro Microsystems, LLC
- 当前专利权人: Allegro Microsystems, LLC
- 当前专利权人地址: US MA Worcester
- 代理机构: Daly, Crowley, Mofford & Durkee, LLP
- 主分类号: H01L21/00
- IPC分类号: H01L21/00 ; H01L23/52
摘要:
Fabrication of a semiconductor package includes placing a conductive material on a protrusion from a leadframe to form a first assembly, forming a non-conductive mask about the protrusion, and placing a die on the first assembly, the die having an active area. Fabrication can further include reflowing the conductive material to form a second assembly such that a connection extends from the die active area, through the conductive material, to the protrusion. A semiconductor package includes a leadframe having a protrusion, a conductive material reflowed to the protrusion, and a die having an active area coupled to the protrusion by the reflowed solder.
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