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:
Sep. 20, 2016
Filed:
Mar. 19, 2015
Tokyo Ohka Kogyo Co., Ltd., Kawasaki-shi, JP;
TOKYO OHKA KOGYO CO., LTD., Kawasaki-Shi, JP;
Abstract
A chemically amplified positive-type photosensitive resin composition for thick-film application capable of forming a resist pattern having a nonresist section with a good rectangular cross-sectional shape under a low exposure level even when a resist pattern having a film thickness of 10 μm or more is formed. A chemically amplified positive-type photosensitive resin composition for thick-film application comprising an acid generator and an organic solvent, in which an acrylic resin is added that contains a constituent unit derived from an acrylic acid ester comprising an —SO-containing cyclic group or a lactone-containing cyclic group as a resin whose solubility in alkali increases under the action of acid.