A new MOS-bipolar power device in which forced-gate turn-off is achieved using a depletion region formed by an MOS gate structure is described. This device, called the depletion-mode thyristor (DMT), offers many highly desired features for high-voltage power switching applications: a) low ON-state drop, b) high input impedance, c) three-terminal operation, d) equivalent complementary devices, and e) high maximum controllable current. Experimental verification of device operation has been achieved using a UMOS gate technology.>
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Baliga et al. (1988) studied this question.
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