Thyristor with auxiliary emitter electrode and short-circuit reg

Details Thyristor with auxiliary emitter electrode and short-circuit reg Thyristor with auxiliary emitter electrode and short-circuit reg

1982-04-21

1990-07-17

Clawson, Jr., Joseph E.

357 2312, 357 43, 357 86, H01L 2974

Patent

active

049424432

ABSTRACT:
A power thyristor with internal current amplification has an auxilary emitter region which is contacted by an auxiliary emitter electrode. Disconnectible current paths designed as MIS structures are provided between the auxiliary emitter electrode and the base layer adjacent to the auxiliary emitter region. The current paths, which effect a stabilization in their switched-on state, are switched off for the duration of the ignition operation in order to increase the trigger sensitivity. Each MIS structure exhibits a short-circuit region inserted into the adjacent base layer spaced from the auxiliary emitter region, said short-circuit region being connected to the adjacent base layer over a conductive coating.

REFERENCES:
patent: 4224634 (1980-09-01), Suedberg

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