Radiation-controllable thyristor with multiple, non-concentric a

Details Radiation-controllable thyristor with multiple, non-concentric a Radiation-controllable thyristor with multiple, non-concentric a

1983-08-29

1986-06-17

Clawson, Jr., Joseph E.

357 20, 357 30, 357 68, 357 86, H01L 2974

Patent

active

045959390

ABSTRACT:
A radiation-controllable thyristor is disclosed, which includes an electrical trigger main thyristor having four semiconductor layers each having mutually different conductivity types, and a plurality of stages of pilot thyristors commonly having three other layers excluding one emitter layer of the above main thyristor. First-stage one of the pilot thyristors is a light-triggering type thryistor having a photo-sensing area onto which a control radiation, such as light beam, is irradiated. A collector electrode is provided on another emitter layer of the main thryistor in such a way as to substantially surround the above pilot thyristors.

REFERENCES:
patent: 3590346 (1971-06-01), Bilo et al.
patent: 3697833 (1972-10-01), Nakata
patent: 3893153 (1975-07-01), Page et al.
patent: 4060826 (1977-11-01), Voss
patent: 4208669 (1980-06-01), Silber et al.
patent: 4298882 (1981-11-01), Homola et al.

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