Light-triggerable thyristor having a low light power requirement

Details Light-triggerable thyristor having a low light power requirement Light-triggerable thyristor having a low light power requirement

1983-05-18

1986-05-06

Edlow, Martin H.

357 39, 357 30, 357 51, 357 2, H01L 2974, H01L 3106

Patent

active

045875464

ABSTRACT:
A light-triggerable thyristor has a semiconductor body which contains an n emitter contacted by a cathode electrode and lying adjacent a p base which, in turn, is adjacent an n base contacting a p emitter having an anode electrode. A projection of the p base extends up to the boundary surface of the semiconductor body adjacent another projection of the n base which likewise extends up to the boundary surface. In order to obtain a high trigger sensitivity, and, at the same time, a high inhibit capability of the thyristor, a light-sensitive element is connected between an electrode which contacts the second-mentioned projection of the n base and the cathode electrode.

REFERENCES:
patent: 3832732 (1974-08-01), Roberts
patent: 4224634 (1980-09-01), Svedberg
G. Hatzinger, "Optoelektronische Bauelemente von Schaltungen", Siemens Aktiengesellschaft, 1977, pp. 36-41, 54-67, 76-77.
W. Gerlach, "Thyristoren", Springer-Verzg, 1979, pp. 390-395.
L. Leipold, "Neveste Ergebnisse von SIPMOS Opto-Triacs", 10, Kolloquium Halbleiterleistungs-Bauelemente und Materialqute SI, Nov. 1981, (2 pages).

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