Thyristor for low-loss triggering of short impulses with Schottk

Details Thyristor for low-loss triggering of short impulses with Schottk Thyristor for low-loss triggering of short impulses with Schottk

1980-08-29

1983-07-19

Clawson, Jr., Joseph E.

357 15, 357 13, 357 59, H01L 2974

Patent

active

043946771

ABSTRACT:
A thyristor for low-loss triggering of short impulses, including a main thyristor formed of four alternating zones of opposite conductivity type including a cathode emitter, a cathode base, an anode base and an anode, with a portion of the cathode base emerging to a cathode-side surface and serving as a gate; an integrated auxiliary thyristor provided for improving current rise time upon main thyristor ignition between the gate and the cathode emitter of the main thyristor; and an integrated diode provided for shortening the turn-off time of the main thyristor when ending current conduction therethrough; wherein the integrated diode is implemented as a Schottky contact which injects virtually no electrons into the cathode base under normal operating conditions.

REFERENCES:
patent: T953005 (1976-12-01), Anantha et al.
patent: 3445301 (1969-05-01), Topas et al.
patent: 3577046 (1971-05-01), Moyson
patent: 3579060 (1971-05-01), Davis
patent: 3619738 (1971-11-01), Otsuka
patent: 3739236 (1973-06-01), Loro
patent: 4054893 (1977-10-01), Hutson
patent: 4282542 (1981-08-01), Silber et al.
patent: 4316209 (1982-02-01), Ho et al.

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