发明名称 |
Non-breakdown triggered electrostatic discharge protection circuit for an integrated circuit and method therefor |
摘要 |
A non-breakdown triggered electrostatic discharge (ESD) protection circuit (11) having a voltage divider circuit and a SCR (22) protects an integrated circuit from an ESD event. The voltage divider includes a capacitor (17) and a resistor (18). The voltage divider connects to a pad of an integrated circuit and generates a trigger voltage for enabling the SCR (22) when an ESD event is applied to the pad. A worst case ESD voltage transient is used to calculate a trigger voltage for the SCR (22). The trigger voltage is selected at a voltage below where damage to the integrated circuit occurs. The SCR (22) is designed to have a turn on time constant that prevents normal signal levels from triggering the SCR (22).
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申请公布号 |
US5781388(A) |
申请公布日期 |
1998.07.14 |
申请号 |
US19960706868 |
申请日期 |
1996.09.03 |
申请人 |
MOTOROLA, INC. |
发明人 |
QUIGLEY, JOHN H. |
分类号 |
H01L23/60;H01L27/02;H05F3/02;(IPC1-7):H02H9/00 |
主分类号 |
H01L23/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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