Patent ID: 9644596
Date: 2017-05-09
CPC Classifications: F02P,H01L

Claim:
1. An igniter comprising: a main insulated gate transistor including a sense insulated gate transistor including a surge protective sense zener diode that is provided on the first main surface of the first semiconductor layer and is connected between the second gate electrode and the first main electrode; and an asymmetric bidirectional diode that is provided on the first main surface of the first semiconductor layer, is connected between the first main electrode and the second main electrode, and sets a potential of the second main electrode to be higher than a potential of the first main electrode, wherein a distance between the main insulated gate transistor and the sense insulated gate transistor is equal to or greater than 100 μm and equal to or less than 700 μm, and each of the sense zener diode and the asymmetric bidirectional diode is arranged so as to face a portion of the sense insulated gate transistor that does not face the main insulated gate transistor.