发明申请
US20070018323A1 Reduced inductance in ball grid array packages 有权
降低球栅阵列封装中的电感

  • 专利标题: Reduced inductance in ball grid array packages
  • 专利标题(中): 降低球栅阵列封装中的电感
  • 申请号: US11187565
    申请日: 2005-07-22
  • 公开(公告)号: US20070018323A1
    公开(公告)日: 2007-01-25
  • 发明人: Allen Kramer
  • 申请人: Allen Kramer
  • 申请人地址: US Scotts Valley
  • 专利权人: Seagate Technology LLC
  • 当前专利权人: Seagate Technology LLC
  • 当前专利权人地址: US Scotts Valley
  • 主分类号: H01L23/02
  • IPC分类号: H01L23/02
Reduced inductance in ball grid array packages
摘要:
Techniques are described for reducing inductance in ball grid array (BGA) packages for integrated circuits (ICs). The BGA package comprises a set of contacts disposed near an outer edge of the BGA package that receives signal lines and isolated power and ground lines. One area of excess parasitic inductance within the BGA package is in the wire bonds that couple the set of contacts to the IC. The techniques described herein shorten the wire bonds in order to reduce the amount of parasitic inductance. The techniques include extending traces from a subset of the contacts inward into the BGA package toward the IC mounted. The wire bonds then couple the traces to the IC, thereby electrically coupling the subset of contacts to the IC. The presence of the traces substantially reduces lengths of the wire bonds relative to wire bonds that directly couple the set of contacts to the IC.
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