| 摘要 |
PURPOSE:To obtain a function the same as a part which two simple elements of a thyristor and a diode are connected by a method wherein a diode part and a thyristor part of the inverse conductive type two terminal thyristor are separated by a mesa groove. CONSTITUTION:The mesa groove W is formed which separates the thyristor part T and a diode part D. The mesa groove W reaches junction which an n type emitter region and a p type base region of the thyristor part T make up. The voltage blocking capacity of the reverse blocking junction of the diode part D is made higher than the voltage blocking capacity of the forward blocking junction of the thyristor part, and the thyristor is positively turned OFF. Preferably, the mesa groove W is protected with insulating films 27, 28 in glass, etc. Thus, one element can have a function the same as a part which two simple elements of the thyristor and the diode are connected, and is suitable for the circuit of a gas igniter, etc. |
