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1. US20090075204 - Positive resist composition and method of forming resist pattern

Office United States of America
Application Number 12299523
Application Date 18.05.2007
Publication Number 20090075204
Publication Date 19.03.2009
Grant Number 7776511
Grant Date 17.08.2010
Publication Kind B2
IPC
G03F 7/004
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
7Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
004Photosensitive materials
G03F 7/30
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
7Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
26Processing photosensitive materials; Apparatus therefor
30Imagewise removal using liquid means
CPC
G03F 7/0397
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;
7Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
004Photosensitive materials
039Macromolecular compounds which are photodegradable, e.g. positive electron resists
0392the macromolecular compound being present in a chemically amplified positive photoresist composition
0397the macromolecular compound having an alicyclic moiety in a side chain
G03F 7/0045
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;
7Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
004Photosensitive materials
0045with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
Y10S 430/111
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
430Radiation imagery chemistry: process, composition, or product thereof
1053Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
1055Radiation sensitive composition or product or process of making
106Binder containing
111Polymer of unsaturated acid or ester
Applicants Tokyo Ohka Kogyo Co., Ltd.
Inventors Takeshita Masaru
Watanabe Ryoji
Agents Knobbe, Martens, Olson &; Bear, LLP
Priority Data 2006145285 25.05.2006 JP
2006244293 08.09.2006 JP
Title
(EN) Positive resist composition and method of forming resist pattern
Abstract
(EN)

A positive resist composition including a resin component (A) which exhibits increased alkali solubility under action of acid and an acid-generator component (B) which generates acid upon exposure,

    • the resin component (A) including a structural unit (a0-1) represented by general formula (a0-1) shown below and a structural unit (a0-2) represented by general formula (a0-2) shown below:

wherein: R represents a hydrogen atom, a halogen atom, a lower alkyl group or a halogenated lower alkyl group; each of Y1 and Y3 independently represents an aliphatic cyclic group; Z represents a tertiary alkyl group-containing group or an alkoxyalkyl group; a represents an integer of 1 to 3, and b represents an integer of 0 to 2, such that a+b=1 to 3; each of c, d and e independently represents an integer of 0 to 3; each of g and h independently represents an integer of 0 to 3; and i represents an integer of 1 to 3.