Method of manufacturing semiconductor integrated circuit device

Semiconductor device manufacturing: process – Forming bipolar transistor by formation or alteration of... – Self-aligned

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438368, 438378, 438745, 438906, H01L 21301

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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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"Effects of surface hydrogen on the air oxidation at room temerature of HF-treated Si(100) surfacess" by N. Hirashita, et al pp. 451-453 (1990).

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