Electrostatic protection circuit of an integrated circuit

Details Electrostatic protection circuit of an integrated circuit Electrostatic protection circuit of an integrated circuit

1998-04-27

2000-01-11

Gaffin, Jeffrey

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361111, 361 58, 361 913, H02H 900

Patent

active

060142987

ABSTRACT:
The protection circuit of the invention connects in series with an internal circuit between a first power source and a second power source. The protection circuit includes a switch which is connected with the internal circuit and one of the first power source and a second power source; and a delay circuit which connects with the switch. The switch which is controlled by the delay circuit is closed for providing a voltage to the internal circuit in normal operation mode, and is opened when an electrostatic stress occurs.

REFERENCES:
patent: 4860148 (1989-08-01), Iwamura et al.
patent: 5218506 (1993-06-01), Harris
patent: 5440162 (1995-08-01), Worley et al.
patent: 5559659 (1996-09-01), Strauss
patent: 5771140 (1998-06-01), Kim

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