发明申请
- 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
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.
信息查询