Input protection circuit

Details Input protection circuit Input protection circuit

1994-07-27

1997-12-09

Saadat, Mahshid D.

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

257355, 257358, 257360, 257361, 257363, H01L 2362

Patent

active

056963980

ABSTRACT:
An input protection circuit comprises an internal circuit and an input terminal, between which a pair of rectifying devices are interposed with polygonal diffusion regions of one and the other conduction types, which diffusion regions are formed longer along the width thereof orthogonal to the direction of current flow in the wiring than along the direction of current flow. The width of the contacts between said wiring and said diffusion regions is greater than the width of the wiring not having the contacts, thereby achieving a high electrostatic breakdown voltage.

REFERENCES:
patent: 4928157 (1990-05-01), Matsunaga et al.
patent: 5087955 (1992-02-01), Futami
patent: 5304839 (1994-04-01), Chen et al.

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