Thyristor with voltage breakover current control separated from

Details Thyristor with voltage breakover current control separated from Thyristor with voltage breakover current control separated from

1980-10-10

1982-02-02

Clawson, Jr., Joseph E.

357 13, 357 20, 357 51, 357 55, 357 86, H01L 2974

Patent

active

043142664

ABSTRACT:
A thyristor of the type having a localized voltage breakover region is provided with current limiting means for controlling the current through the device during initial voltage breakover. The thyristor base zone is divided into two at least partially separated base portions, one of which is in the vicinity of the localized breakover region. The other base portion is in the main current-carrying part of the thyristor in contact with the main emitter. The two base portions are electrically connected by current limiting means. When breakover occurs by way of a forward anode-cathode voltage which exceeds the thyristor forward breakover voltage, the rise in current is limited by the current limiting means.

REFERENCES:
patent: 3408545 (1968-10-01), De Cecco et al.
patent: 3524114 (1970-08-01), Hutson
patent: 3566211 (1971-02-01), Suedberg
patent: 3590346 (1971-06-01), Biloetac
patent: 3766450 (1973-10-01), Voss et al.
patent: 3967308 (1976-06-01), Yatsuo et al.
patent: 4012761 (1977-03-01), Ferro et al.
patent: 4238761 (1980-12-01), Schlegel et al.

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