发明申请
US20020167053A1 Charge device model protection circuit 审中-公开
充电器型号保护电路

  • 专利标题: Charge device model protection circuit
  • 专利标题(中): 充电器型号保护电路
  • 申请号: US10143698
    申请日: 2002-05-08
  • 公开(公告)号: US20020167053A1
    公开(公告)日: 2002-11-14
  • 发明人: Shao-Chang Huang
  • 优先权: TW89100525 20000114
  • 主分类号: H01L023/62
  • IPC分类号: H01L023/62 H01L023/552
Charge device model protection circuit
摘要:
A CDM protection is provided within an internal device region of an integrated circuit where a plurality of working components are formed. The CDM protection circuit comprises a plurality of CDM protection devices that are electrically connected to one another, and a grounded conductive pad electrically connected to one CDM protection device, the CDM protection devices including a plurality of dummy devices such as dummy metals in tapered shape. The CDM protection devices are distributed over the internal device region in a manner to achieve a global protection of the IC against CDM charges by absorbing and dissipating the CDM charges. To increase CDM protection, a capacitor is further disposed in a manner to surround the internal device region.
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