DocumentCode
847365
Title
DC characteristics and stability behaviour of high-speed Si/SiGe HBTs with undoped SiGe spacer between base and collector
Author
Schreiber, H.-U. ; Albers, J.N.
Author_Institution
Ruhr Univ. Bochum, Germany
Volume
28
Issue
13
fYear
1992
fDate
6/18/1992 12:00:00 AM
Firstpage
1187
Lastpage
1188
Abstract
The quality of MBE-grown Si/SiGe heterojunction bipolar transistors (HBTs) was improved by inserting a well-defined undoped SiGe layer between the neutral base and the collector. The DC characteristics and the long-term stability of these non-selfaligned devices proved to be excellent, and the transit frequency reached 33 GHz (VCB=1 V). Those features are essential preconditions for future application in high-speed ICs.
Keywords
Ge-Si alloys; elemental semiconductors; heterojunction bipolar transistors; semiconductor device testing; semiconductor materials; silicon; stability; 33 GHz; DC characteristics; MBE; Si-SiGe; heterojunction bipolar transistors; high speed HBT; nonselfaligned devices; stability; transit frequency; undoped SiGe spacer;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19920750
Filename
144326
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