Two-Way Tunneling Model of Oxide Trap Charging and Discharging in SiC MOSFETs

Author:

Lelis Aivars J.1,Habersat Daniel B.1ORCID,Green Ronald1,Goldsman Neil2

Affiliation:

1. U.S. Army Research Laboratory

2. University of Maryland

Abstract

A two-way tunneling model describing simultaneous oxide trap charging and discharging in SiC MOSFETs is presented, along with a comparison with experimental results. This model can successfully account for the variation in threshold-voltage instability observed as a function of bias-stress time, bias-stress magnitude, and measurement time.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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