Semiconductor device manufacturing: process – Formation of electrically isolated lateral semiconductive... – Grooved and refilled with deposited dielectric material
Reexamination Certificate
2007-09-11
2007-09-11
Dang, Phuc T. (Department: 2818)
Semiconductor device manufacturing: process
Formation of electrically isolated lateral semiconductive...
Grooved and refilled with deposited dielectric material
C438S257000, C257S316000
Reexamination Certificate
active
11163980
ABSTRACT:
A method of fabricating a semiconductor device is provided. Before covering the isolation structures with a conductive layer, a material layer is formed on the isolation structures. The fluid-like material layer allows the material layer formed between the isolation structures to be thicker than that formed on the top of the isolation structures. The isolation structures are then effectively etched back. The material layer at the top of the isolation structures is removed and a portion of isolation structures is also removed to lower the height of the isolation structures.
REFERENCES:
patent: 5998263 (1999-12-01), Sekariapuram et al.
patent: 2004/0106256 (2004-06-01), Dong et al.
patent: 2005/0142765 (2005-06-01), Joo
patent: 2005/0287810 (2005-12-01), Li et al.
Chien Tsai-Yuan
Lai Liang-Chuan
Dang Phuc T.
Jiang Chyun IP Office
Powerchip Semiconductor Corp.
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