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:
Jan. 30, 2007
Filed:
Dec. 29, 2004
Applicants:
Toshiki Okui, Kawasaki, JP;
Koichi Misumi, Kawasaki, JP;
Koji Saito, Kawasaki, JP;
Inventors:
Assignee:
Tokyo Ohka Kogyo Co., Ltd., Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/004 (2006.01); G11B 5/64 (2006.01); B32B 17/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A chemically amplified positive photoresist composition for thick film that is used for forming a thick-film photoresist layer with a film thickness of 10 to 150 μm on top of a support, comprising (A) a compound that generates acid on irradiation with active light or radiation, (B) a resin that displays increased alkali solubility under the action of acid, and (C) an alkali-soluble resin, wherein the component (B) comprises a resin formed from a copolymer containing a structural unit (b1) with a specific structure.