DocumentCode
1078044
Title
High mobility p-channel HFETs using strained Sb-based materials
Author
Boos, J.B. ; Bennett, B.R. ; Papanicolaou, N.A. ; Ancona, M.G. ; Champlain, J.G. ; Bass, R. ; Shanabrook, B.V.
Author_Institution
Naval Res. Lab., Washington
Volume
43
Issue
15
fYear
2007
Firstpage
834
Lastpage
835
Abstract
Antimonide-based p-channel HFETs with a 0.25 mum gate length have been fabricated with an InAlSb/AlGaSb barrier and a strained In0.41Ga0.59Sb quantum well channel. The modulation-doped material exhibits a Hall mobility of 1020 cm2 /Vs and a sheet density of 1.6 x 1012 cm-2. The devices have a maximum DC transconductance of 133 mS/mm and an fT and fmax of 15 and 27 GHz, respectively. These values are the highest reported to date for this material system.
Keywords
Hall mobility; III-V semiconductors; aluminium compounds; high electron mobility transistors; indium compounds; quantum well devices; Hall mobility; In0.41Ga0.59Sb; InAlSb-InGaSb; frequency 15 GHz; frequency 27 GHz; high mobility p-channel HFET; modulation-doped material; quantum well channel; size 0.25 mum;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20071305
Filename
4278463
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