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 6815007 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 09, 2004

Filed:

Mar. 04, 2002
Applicant:
Inventors:

Ming-Hwa Yoo, Ilan, TW;

Shih-Chi Lin, Taipei, TW;

Yi-Lung Cheng, Taipei, TW;

Szu-An Wu, Hsin-Chu, TW;

Ying-Lang Wang, Tai-chung County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 1/622 ;
U.S. Cl.
CPC ...
C23C 1/622 ;
Abstract

A method for reducing contaminants in a processing chamber having an inner wall by seasoning the walls. The method comprising the following steps. A first USG film is formed over the processing chamber inner wall. An FSG film is formed over the first USG film. A second USG film is formed over the FSG film. A nitrogen-containing film is formed over the second USG film wherein the first USG film, the FSG film, the second USG film and the nitrogen-containing film comprise a UFUN season film.


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