Semiconductor device manufacturing: process – Formation of electrically isolated lateral semiconductive... – Recessed oxide by localized oxidation
Patent
1995-07-07
1997-05-20
Dang, Trung
Semiconductor device manufacturing: process
Formation of electrically isolated lateral semiconductive...
Recessed oxide by localized oxidation
438440, H01L 2176
Patent
active
056311893
ABSTRACT:
According to this method, before a silicon nitride (Si.sub.3 N.sub.4) layer having a thickness of about 200 nm and serving as a field oxidation (selective oxidation) mask is formed, nitrogen-doped amorphous silicon is deposited to form a silicon layer having a thickness of about 50 nm and serving as an underlying layer of the silicon nitride layer.
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"Isolation Process Using Polysilicon Buffer Layer for Scalled MOS/VLSI" Yu-Pin Han et al, Extended Abstracts vol. 84-1, Spring Meeting, Cincinnati, Ohio, May 6-11, 1984.
Kobayashi Toshio
Nakayama Satoshi
Dang Trung
Nippon Telegraph and Telephone Corporation
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