JOINT GATE STATIC INDUCTION THYRISTOR AND HIGH-VOLTAGE PULSE GENERATOR USING SAME

摘要

PROBLEM TO BE SOLVED: To provide a compact and inexpensive static induction thyristor for high-voltage pulse generator that is hard to be broken because of high voltage increasing rate during operation and can generate a high-voltage pulse with a short pulse width.;SOLUTION: In the static induction thyristor 14, the impurity concentration or thickness in a base region and a buffer layer region is determined so that a peak voltage V_D attained by a peak current I_p in a punch-through status does not exceed a withstand voltage of the static induction thyristor 14. An SI thyristor can be realized wherein the peak voltage V_D does not largely exceed the withstand voltage of the static induction thyristor 14 even if the peak current I_p is increased and that has a self protection function to prevent breakage autonomously and does not fail turning-on performance. In addition, the conduction region of a gate channel is made to be a minimum required, thus providing a compact static induction thyristor that can generate a short pulse.;COPYRIGHT: (C)2005,JPO&NCIPI