Y. Nogami

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Thyristors are a class of nonlinear electronic device that exhibit bistable resistance--that is, they can be switched between two different conductance states. Thyristors are widely used as inverters (direct to alternating current converters) and for the smooth control of power in a variety of applications such as motors and refrigerators. Materials and(More)
W e have studied the degradation mechanism of AI-GaAsNnGaAs pseudomorphic HEMTs (PHEMTs) under large signal operation. The outputpower o f t h e PHEMT is degraded with increasing drain voltage (Vd), temperature, and humidity. The deteriorafed devices show a decrease of the maximum drain current (Imax) around the knee voltage (Vk) and an increase of the(More)
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