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 7842193 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 30, 2010

Filed:

Sep. 28, 2006
Applicant:

Kenji Takenouchi, Kanagawa, JP;

Inventor:

Kenji Takenouchi, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 13/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

According to an aspect of the invention, there is provided a polishing liquid for polishing a barrier metal material on an interlayer insulation material, the polishing liquid having a pH of from 2.0 to 6.0 and including an aqueous solution containing a compound represented by the following formula (1), and polishing particles containing silicon oxide and dispersed in the aqueous solution: R—(CH)—(CHR)—COOH (1) wherein m+n≦4; Rrepresents a hydrogen atom, a methyl group, an ethyl group or a hydroxyl group; Rrepresents a methyl group, an ethyl group, a benzene ring or a hydroxyl group; and when a plurality of Rs are present in the formula (1), they are the same or different from one another.


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Takenouchi, Kenji. (2010). Polishing liquid (U.S. Patent No. 7842193). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7842193

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