DocumentCode :
1114353
Title :
InGaAs/InP double-heterostructure bipolar transistors with near-ideal β versus ICcharacteristic
Author :
Nottenburg, Richard N. ; Temkin, H. ; Panish, Morton B. ; Bhat, Rajaram ; Bischoff, J.C.
Author_Institution :
Bell Communications Research, Murray Hill, NJ
Volume :
7
Issue :
11
fYear :
1986
fDate :
11/1/1986 12:00:00 AM
Firstpage :
643
Lastpage :
645
Abstract :
InGaAs/InP double-heterostructure bipolar transistors (DHBT\´s) with current gain β ∼ 630 have been realized using gas-source molecular beam epitaxy (GSMBE). These devices exhibit near-ideal β versus ICcharacteristic (i.e., β independent of IC) with a small-signal gain h_{fe} \\sim 180 at I_{C} \\sim 2 nA. In comparison, we find \\beta \\sim I_{C}^{0.5} for a high-quality AlGaAs/GaAs HBT grown by OMCVD. The higher emitter injection efficiency at low collector current levels found in the InGaAs/InP DHBT is due to at least a factor 100 smaller surface recombination current.
Keywords :
Bipolar integrated circuits; Bipolar transistors; Current measurement; Electron emission; Heterojunction bipolar transistors; Indium gallium arsenide; Indium phosphide; Molecular beam epitaxial growth; Spontaneous emission; Voltage;
fLanguage :
English
Journal_Title :
Electron Device Letters, IEEE
Publisher :
ieee
ISSN :
0741-3106
Type :
jour
DOI :
10.1109/EDL.1986.26504
Filename :
1486327
Link To Document :
بازگشت