Thyristor

Details Thyristor Thyristor

Filed on

1979-06-14

Date issued

1990-07-17

Examiner

Clawson, Jr., Joseph E.

Other Related Categories

357 234, 357 43, 357 86, H01L 2974

Type

Patent

Status

active

Patent number

049424440

Description

ABSTRACT:
The invention herein disclosed relates to a thyristor of the MOS control type. The thyristor has a series of semiconductor layers of varying conductibility types lying above one another in which the semiconductor layers lying at the ends of the series are provided with end-side electrodes and in which a part of the surface of the next-to-the-last layer not covered by the last layer is charged with a control voltage supplied via a control terminal. A power-saving control is obtained in thyristors of this type. This objective is attained in that a region of the surface of the next-to-the-last layer not covered by the last layer is covered with a thin, insulating layer on which a gate connected with a control terminal is arranged. Next to the edge of the last layer, a zone exhibiting the same conductibility type as this last layer is formed which completely penetrates the next-to-the-last layer.

REFERENCES:
patent: 3831187 (1974-08-01), Neilson
patent: 3972061 (1976-07-01), Nelson
patent: 4137545 (1979-01-01), Becke
patent: 4145700 (1979-03-01), Sambotkar

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