The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6905939 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 14, 2005

Filed:

Feb. 27, 2002
Applicants:

Zheng Yuan, Fremont, CA (US);

Xinyun Xia, San Jose, CA (US);

Inventors:

Zheng Yuan, Fremont, CA (US);

Xinyun Xia, San Jose, CA (US);

Assignee:

Applied Materials, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L021/76 ; H01L021/311 ; H01L021/31 ;
U.S. Cl.
CPC ...
Abstract

A thin layer of silicon oxide is formed by cyclic introduction of a silicon-containing precursor gas and an oxidizing gas separated by an intervening purge step. The resulting thin oxide layer enables subsequent conventional CVD of oxide to produce a more uniform deposited oxide layer over nonhomogenous surfaces, for example the silicon nitride mask/thermal oxide liner surfaces created during fabrication of shallow trench isolation structures.


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