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:
Dec. 27, 2011
Filed:
Sep. 11, 2009
Applicants:
Noboru Otsuka, Tokyo, JP;
Takanori Kawakami, Tokyo, JP;
Inventors:
Noboru Otsuka, Tokyo, JP;
Takanori Kawakami, Tokyo, JP;
Assignee:
JSR Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/004 (2006.01);
U.S. Cl.
CPC ...
Abstract
A radiation-sensitive resin composition includes an acid-dissociable group-containing resin, a radiation-sensitive acid generator, and a solvent. The acid-dissociable group-containing resin includes a copolymer containing a repeating unit. The reparing unit includes an acid-dissociable group-containing repeating unit in an amount of more than about 55 mol % of a total amount of the repeating units in the copolymer. A content of the copolymer in the acid-dissociable group-containing resin is about 90 mass % or more of a total amount of the acid-dissociable group-containing resin.