DocumentCode
982121
Title
InGaAs enhancement-mode MISFETs using double-layer gate insulator
Author
Ishii, Kazuki ; Sawada, Tsuyoshi ; Ohno, Hideo ; Hasegawa, Hiroshi
Author_Institution
Hokkaido University, Department of Electrical Engineering, Faculty of Engineering, Sapporo, Japan
Volume
18
Issue
24
fYear
1982
Firstpage
1034
Lastpage
1036
Abstract
In this letter we describe the fabrication of enhancement-mode MISFETs on InGaAs grown by liquid-phase epitaxy (LPE) using an anodic Al2O3/anodic native oxide double layer as a gate insulator. The normally-off device of 10 ¿m gate length shows the effective channel mobility of 1400 cm2/Vs. The interface state density distribution of this double-layer MIS of InGaAs is also reported. The density of 2 à 1013 cm¿2 eV¿1 at Ec ¿0.057 eV and the minimum of 8 à 1011 cm¿2 eV¿1 near midgap are measured from C/V characteristics.
Keywords
III-V semiconductors; gallium arsenide; indium compounds; insulated gate field effect transistors; interface electron states; liquid phase epitaxial growth; III-V semiconductor; InGaAs enhancement-mode MISFET; anodic Al2O3/anodic native oxide double layer; double-layer gate insulator; effective channel mobility; fabrication; interface state density distribution; liquid-phase epitaxy;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19820708
Filename
4247063
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