Light-firable thyristor

Details Light-firable thyristor Light-firable thyristor

1983-08-19

1988-07-05

Clawson, Jr., Joseph E.

357 4, 357 30, 357 86, H01L 2974

Patent

active

047558610

ABSTRACT:
A light-firable thyristor has two emitter layers and two base layers therebetween. One of the emitter layers comprises a plurality of partial layers one of which has a light-active semiconductor region. Each of the emitter layers has an additional region therein which in combination with the partial layer and the base layer adjacent the partial layer forms a gate controlled MIS structure for providing a controllable emitter short circuit path between each partial layer in the base layer adjacent therewith. The short circuit path is opened during initial device firing to provide increased sensitivity but which is shorted at other times to provide operational stability.

REFERENCES:
patent: 3891866 (1975-06-01), Okuhara et al.
patent: 4016592 (1977-04-01), Yatsuo et al.
patent: 4224634 (1980-09-01), Svedberg
patent: 4238761 (1980-12-01), Schlegel et al.

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