Semiconductor protection circuit and method

Details Semiconductor protection circuit and method Semiconductor protection circuit and method

1998-03-02

2000-04-04

Sherry, Michael J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361111, H02H 322

Patent

active

060468947

ABSTRACT:
A protection circuit (20) protects a semiconductor device (10) from damage due to electrostatic charge transferred to a terminal (19) of the semiconductor device. A voltage follower (26) senses a voltage (V.sub.CHARGE) developed by the electrostatic charge to produce a follower voltage. A conduction path (30) is enabled with the follower voltage to discharge the electrostatic charge from the terminal before the voltage rises to a magnitude that damages the integrated circuit.

REFERENCES:
patent: 5671111 (1997-09-01), Chen
patent: 5740000 (1998-04-01), Stackhouse et al.
patent: 5781388 (1998-07-01), Quigley
patent: 5825601 (1998-10-01), Statz et al.
patent: 5838146 (1998-11-01), Singer

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