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. 01, 2015
Filed:
Nov. 20, 2013
Tokyo Ohka Kogyo Co., Ltd., Kawasaki-shi, JP;
Tokyo Ohka Kogyo Co., Ltd., Kawasaki-Shi, JP;
Abstract
A resist composition which generates an acid upon exposure and exhibits changed solubility in a developing solution by the action of an acid, the resist composition containing a base material component which exhibits changed solubility in a developing solution by the action of an acid; and the base material component containing a resin component having a constituent unit derived from a compound represented by the following general formula (a0-1), at least two or more kinds of a constituent unit containing an acid dissociable group represented by the following general formula (a1-r-1) or (a1-r-2), and a constituent unit containing a lactone-containing, an —SO-containing, or a carbonate-containing cyclic group; and a method for forming a resist pattern using the resist composition.