Semiconductor device manufacturing: process – Forming bipolar transistor by formation or alteration of... – Self-aligned
Patent
1996-07-24
1998-12-08
Nguyen, Tuan H.
Semiconductor device manufacturing: process
Forming bipolar transistor by formation or alteration of...
Self-aligned
438368, 438378, 438745, 438906, H01L 21301
Patent
active
058468692
ABSTRACT:
A method of manufacturing a bipolar transistor having an improved polysilicon emitter is disclosed. More specifically, hydrogen terminations or OH group terminations adhered (bonded) to an emitter-forming region are eliminated by a heat treatment in an inert gas atmosphere before forming emitter polysilicon. Subsequently, an amorphous silicon film for forming an emitter polysilicon is formed at a low temperature.
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Hashimoto Takashi
Kikuchi Toshiyuki
Kumauchi Takahiro
Mine Toshiyuki
Miura Hideo
Hitachi , Ltd.
Nguyen Tuan H.
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