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. 02, 2018
Filed:
Nov. 10, 2015
Sumitomo Chemical Company, Limited, Tokyo, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
A resist composition includes (A1) a resin having an acid-labile group, (A2) a resin which includes a structural unit represented by formula (I), and an acid generator: wherein Rrepresents a hydrogen atom, a halogen atom or a Cto Calkyl group in which a hydrogen atom can be replaced by a halogen atom, Rrepresents a Cto Cfluorinated saturated hydrocarbon group, Arepresents a Cto Calkanediyl group or *-A-X-(A-X)-A-, * represents a binding site to an oxygen atom in —O—CO—, A, Aand Aeach independently represent a Cto Calkanediyl group, Xand Xeach independently represent —O—, —CO—O— or —O—CO—, and 'a' represents 0 or 1.