Protection circuit for protecting a semiconductor device from a

Details Protection circuit for protecting a semiconductor device from a Protection circuit for protecting a semiconductor device from a

1994-08-30

1995-12-19

Deboer, Todd

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 58, 361 91, 361111, 361118, 257355, 257532, H02H 904, H01L 2702

Patent

active

054774071

ABSTRACT:
An input protection circuit includes a conductor pattern extending from a first end connected to an input pad to a second end connected to an integrated circuit, first and second, mutually separated ground patterns disposed at both sides of the conductor pattern with a separation therefrom, a first gate pattern provided on a gap between the conductor pattern and the first ground pattern, and a second gate pattern provided on a gap between the conductor pattern and the second ground pattern, wherein the conductor pattern, the first ground pattern and the first gate pattern form a first transistor extending continuously from the first end to the second end of the conductor pattern at a first side of the conductor pattern, and wherein the conductor pattern, the second ground pattern and the second gate pattern form a second transistor extending continuously from the first end to the second end of the conductor pattern at a second side of the conductor pattern.

REFERENCES:
patent: 4807080 (1989-02-01), Clark
patent: 4821089 (1989-04-01), Strauss
patent: 4825280 (1989-04-01), Chen
patent: 5087955 (1992-02-01), Futami
patent: 5264723 (1993-11-01), Strauss
patent: 5345356 (1994-09-01), Pianka

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