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:
Oct. 22, 2013
Filed:
Feb. 24, 2012
Applicants:
Koji Ichikawa, Osaka, JP;
Akira Kamabuchi, Osaka, JP;
Inventors:
Koji Ichikawa, Osaka, JP;
Akira Kamabuchi, Osaka, JP;
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/004 (2006.01); G03F 7/30 (2006.01); G03F 7/38 (2006.01); G03F 7/039 (2006.01);
U.S. Cl.
CPC ...
G03F 7/0397 (2013.01); G03F 7/30 (2013.01); G03F 7/38 (2013.01); Y10S 430/108 (2013.01); Y10S 430/111 (2013.01);
Abstract
A resist composition having; (A1) a resin having a structural unit represented by the formula (I), (A2) a resin having a structural unit represented by the formula (II) and being insoluble or poorly soluble in alkali aqueous solution, but becoming soluble in an alkali aqueous solution by the action of an acid and (B) an acid generator,