发明授权
- 专利标题： Method and apparatus for a floating well RC triggered electrostatic discharge power clamp
- 专利标题（中）： 浮动井的方法和装置RC触发静电放电电源钳
-
申请号： US10871075申请日： 2004-06-18
-
公开(公告)号： US06972939B1公开(公告)日： 2005-12-06
- 发明人: Fu-Hing Ho , Patrick J. Crotty
- 申请人： Fu-Hing Ho , Patrick J. Crotty
- 申请人地址： US CA San Jose
- 专利权人： Xilinx, Inc.
- 当前专利权人： Xilinx, Inc.
- 当前专利权人地址： US CA San Jose
- 代理商 LeRoy D. Maunu
- 主分类号： H01L27/02
- IPC分类号： H01L27/02 ; H02H3/22 ; H02H9/00
摘要：
An Electrostatic Discharge (ESD) protection circuit activates an ESD conduction circuit in response to an ESD event. A deactivation circuit generates an exponentially increasing deactivation signal in response to the ESD event, such that once the deactivation signal has increased to a trigger point of a control circuit, the ESD conduction circuit is deactivated. An active resistance component within the deactivation circuit incorporates a biasing element to maintain a resistance value of the active resistance component substantially constant over all operating conditions.
信息查询
IPC分类:
