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.:
Date of Patent:
Jul. 14, 2009
Filed:
Feb. 22, 2006
Hirotaka Shida, Chuo-ku, JP;
Masayuki Hattori, Yatomi, JP;
Hirotaka Shida, Chuo-ku, JP;
Masayuki Hattori, Yatomi, JP;
JSR Corporation, Tokyo, JP;
Abstract
A chemical mechanical polishing method, including: chemically and mechanically polishing a polishing target surface by continuously performing a first polishing step and a second polishing step having a polishing rate lower than a polishing rate of the first polishing step, a chemical mechanical polishing aqueous dispersion used in the first polishing step and the second polishing step being a mixture of an aqueous dispersion and an aqueous solution, and the polishing rate being changed between the first polishing step and the second polishing step by changing a mixing ratio of the aqueous dispersion and the aqueous solution.