DocumentCode
1319731
Title
Accurate charge control model for MODFET including subthreshold region
Author
Tong, K.Y.
Author_Institution
Dept. of Electron. Eng., Hong Kong Polytech., Hung Ham, Hong Kong
Volume
27
Issue
8
fYear
1991
fDate
4/11/1991 12:00:00 AM
Firstpage
668
Lastpage
669
Abstract
A simple analytical model is proposed for the Fermi level as a function of the channel carrier density in a modulation doped FET (MODFET). It agrees well with numerical results including low carrier densities near the subthreshold region. The drain current is derived including drift and diffusion current, and the saturation drain current from the author´s model agrees well with experiment.
Keywords
carrier density; high electron mobility transistors; semiconductor device models; Fermi level; HEMT; MODFET; channel carrier density; charge control model; diffusion current; drift current; modulation doped FET; saturation drain current; subthreshold region;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19910418
Filename
83299
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