发明授权
US07436048B2 Multichip leadframe package 有权
多芯片引线框封装

  • 专利标题: Multichip leadframe package
  • 专利标题(中): 多芯片引线框封装
  • 申请号: US11686010
    申请日: 2007-03-14
  • 公开(公告)号: US07436048B2
    公开(公告)日: 2008-10-14
  • 发明人: Jongwoo HaTaebok Jung
  • 申请人: Jongwoo HaTaebok Jung
  • 申请人地址: US CA Fremont
  • 专利权人: Chippac, Inc.
  • 当前专利权人: Chippac, Inc.
  • 当前专利权人地址: US CA Fremont
  • 主分类号: H01L23/495
  • IPC分类号: H01L23/495
Multichip leadframe package
摘要:
A multichip package has a leadframe including peripheral leads arranged about a centrally situated die paddle. A first die is attached to a first side of the leadframe die paddle. The second side of the leadframe is partially cut away so that an outer part of the die paddle is thinner, and an inner part of the leads is thinner. These partially cutaway portions in the second side of the leadframe provide a cavity, in which a second die is attached active side upward. The lower die may have bond pads near the center of the active surface, and electrical interconnection of the lower die may be made by wire bonds running through the gap between the die paddle and the leads; or, the lower die may be attached, and electrically interconnected, by flip chip interconnect to the die attach side of the cavity in the leadframe.
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