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:
Feb. 03, 2015
Filed:
Jun. 10, 2011
Applicant:
Hiroyuki Niwa, Otsu, JP;
Inventor:
Hiroyuki Niwa, Otsu, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/023 (2006.01); H01L 23/00 (2006.01); H01L 23/29 (2006.01);
U.S. Cl.
CPC ...
Abstract
A photosensitive resin composition contains: (a) an alkali-soluble polyimide; (b) a compound which has two or more epoxy groups and/or oxetanyl groups in each molecule; and (c) a quinonediazide compound. Less than 10 parts by weight of an acrylic resin is contained per 100 parts by weight of the polyimide (a); and the content of the compound (b) is not less than 20 parts by weight per 100 parts by weight of the polyimide (a).