DocumentCode
1630886
Title
The effects of hydrogen on current gain and emitter resistance of poly emitter bipolar transistors
Author
Zhao, J. ; Li, G.P. ; Liao, K.Y. ; Chin, M.R. ; Vu, T. ; Sun, J.Y.-C.
Author_Institution
Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA
fYear
1993
Firstpage
223
Lastpage
226
Abstract
The effects of hydrogen passivation at the polysilicon grain boundaries and poly/mono-silicon interface on inducing a β increase and Re decrease are investigated in poly emitter transistors. Increase of β and decrease of Re are attributed to the reduction of effective recombination velocity of minority carriers and the decrease of potential barrier for majority carrier transport in the poly emitters by the passivation of silicon dangling bonds, respectively. The implications of the hydrogen passivation on β and Re for devices with a RTA emitter are also discussed
Keywords
bipolar transistors; H plasma treatment; RTA emitter; Si; current gain; dangling bonds; effective recombination velocity; elemental semiconductor; emitter resistance; majority carrier transport; minority carriers; passivation; poly/mono interface; polysilicon emitter bipolar transistors; polysilicon grain boundaries; potential barrier; Bipolar transistors;
fLanguage
English
Publisher
ieee
Conference_Titel
Bipolar/BiCOMS Circuits and Technology Meeting, 1993., Proceedings of the 1993
Conference_Location
Minneapolis, MN
Print_ISBN
0-7803-1316-X
Type
conf
DOI
10.1109/BIPOL.1993.617503
Filename
617503
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