Semiconductor device manufacturing: process – Formation of electrically isolated lateral semiconductive... – Grooved and refilled with deposited dielectric material
Reexamination Certificate
2008-05-13
2008-05-13
Smith, Bradley K (Department: 2891)
Semiconductor device manufacturing: process
Formation of electrically isolated lateral semiconductive...
Grooved and refilled with deposited dielectric material
C257SE21546
Reexamination Certificate
active
07371656
ABSTRACT:
A method for forming a STI of a semiconductor device includes steps of sequentially forming a pad oxide film and a pad nitride film on the semiconductor device and carrying out a pattern process PR; etching the pad oxide film and the nitride film and carrying out a cleaning process; selectively growing epitaxial silicon; and carrying out liner oxidation on the epitaxial silicon and carrying out CMP so as to form an oxidation fill and STI.
REFERENCES:
patent: 6221733 (2001-04-01), Li et al.
patent: 2005/0009295 (2005-01-01), Chan et al.
patent: 2005/0095807 (2005-05-01), Xiang
patent: 2002019287 (2002-03-01), None
Dongbu Electronics Co. Ltd.
Lowe Hauptman & Ham & Berner, LLP
Smith Bradley K
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