Asymmetrical field controlled thyristor

Details Asymmetrical field controlled thyristor Asymmetrical field controlled thyristor

1985-07-17

1990-06-26

Clawson, Jr., Joseph E.

357 22, 357 58, 357 89, H01L 2974

Patent

active

049376446

ABSTRACT:
A field controlled thyristor having its base doped more lightly near the gate than near the anode achieves a low forward voltage drop, high blocking gain, and fast switching speed at any given forward blocking voltage rating. Although the high resistivity region around the gate area allows the device to pinch off anode current flow at zero gate bias due to the gate junction inherent potential, a small forward gate voltage can trigger the device into conduction. The high resistivity of the channel area between gates provides DC blocking gains greater than 60. The device can be fabricated using conventional planar processing techniques.

REFERENCES:
patent: 3409812 (1968-11-01), Zuleeg
patent: 3465216 (1969-09-01), Teszner
patent: 3482151 (1969-12-01), Teszner et al.
patent: 3497777 (1970-02-01), Teszner
patent: 3814995 (1974-06-01), Teszner
patent: 4223328 (1980-09-01), Terasawa et al.

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