Affiliation:
1. Xi’an University of Technology
2. Xi’an TianGuang Semiconductor Co., Ltd
3. Xi’an Key Laboratory of Power Electronic Devices and High Efficiency Power Conversion
Abstract
Influence of acceptor incomplete ionization in p+ emitter on characteristics of SiC LTT with n-type blocking base was investigated in this work through TCAD simulation. The incomplete ionization model in the p+ emitter was shielded for comparison of the influence of acceptor complete ionization status. The minimum triggering intensity, forward on-state voltage drop, turn-on delay time and anode voltage falling time were simulated and discussed. The simulation results indicated that the acceptor incomplete ionization in p+ emitter makes the minimum triggering intensity, forward on-state voltage drop, switch-on delay time and anode voltage falling time increase by about 3.0 times, 1.24 times, 22% and 2.55 times, respectively.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science