DocumentCode
3556736
Title
High-temperature stable W5 Si3 /In0.53 Ga0.47 As ohmic contacts to GaAs for self-aligned HBTs
Author
Ishii, K. ; Ohshima, T. ; Futatsugi, T. ; Fujii, T. ; Yokoyama, N. ; Shibatomi, A.
Author_Institution
Fujitsu Laboratories Ltd., Atsugi, Japan
Volume
32
fYear
1986
fDate
1986
Firstpage
274
Lastpage
277
Abstract
Metallurgicalp and electrical stabilities of W5 Si3 /In0.53 Ga0.47 As ohmic contacts to n-GaAs are studied using backscattering and TLM measurements. It is found that W5 Si3 /In0.53 Ga0.47 As ohmic contacts are stable even after annealing at 900°C for 5 sec. We propose and demonstrate a self-aligned HBT fabrication process using the high-temperature stable ohmic contacts for emitter-electrodes.
Keywords
Annealing; Chromium; Conductivity; Electrical resistance measurement; Electrodes; Gallium arsenide; Gold; Morphology; Ohmic contacts; Sputter etching;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting, 1986 International
Type
conf
DOI
10.1109/IEDM.1986.191168
Filename
1486426
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