Paper Title:

Channel Hot-Carrier Effect of 4H-SiC MOSFET

Periodical Materials Science Forum (Volumes 615 - 617)
Main Theme Silicon Carbide and Related Materials 2008
Edited by Amador Pérez-Tomás, Philippe Godignon, Miquel Vellvehí and Pierre Brosselard
Pages 813-816
DOI 10.4028/www.scientific.net/MSF.615-617.813
Citation Liang Chun Yu et al., 2009, Materials Science Forum, 615-617, 813
Online since March, 2009
Authors Liang Chun Yu, Kin P. Cheung, John S. Suehle, Jason Campbell, Kuang Sheng, Aivars J. Lelis, Sei Hyung Ryu
Keywords 4H-SiC, Channel Hot-Carrier Effect, Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET)
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Abstract

SiC MOSFET, as power device, can be expected to operate with high drain and high gate voltages, possibly leading to hot-carrier effect. However, hot-carrier degradation in a SiC MOSFET is difficult to detect because the as fabricated devices contain high level of defects. We report, for the first time, evidence of hot-carrier effect in 4H-SiC MOSFET. The result suggests that hot hole from impact ionization trapped in the oxide is the cause of the channel hot-carrier effect.