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Title:
RESIST COMPOSITION AND METHOD OF PRODUCING RESIST PATTERN
Document Type and Number:
Japanese Patent JP2014112210
Kind Code:
A
Abstract:

To provide a resist composition that enables production of a resist pattern with an excellent exposure margin (EL).

A resist composition contains a resin that has a structural unit represented by formula (I) and a structural unit represented by formula (a4) and does not have an acid-labile group, a resin having an acid-labile group, and an acid generator represented by formula (II), wherein R1 and R3 are a hydrogen atom or a methyl group; R2 is an alicyclic hydrocarbon group; L1 is a divalent saturated hydrocarbon group or a single bond; R4 is a saturated hydrocarbon group having a fluorine atom; Rb1 and Rb2 are independently a fluorine atom or a perfluoroalkyl group; Lb1 is a divalent saturated hydrocarbon group; a ring Wb1 is a heterocycle; Rb3 is a hydrogen atom or a hydrocarbon group; Rb4 is a hydrocarbon group; m is an integer of 0-6; and Z1+ is an organic cation.


Inventors:
ICHIKAWA KOJI
SAKAMOTO HIROSHI
HIRAOKA TAKASHI
Application Number:
JP2013217570A
Publication Date:
June 19, 2014
Filing Date:
October 18, 2013
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO
International Classes:
G03F7/038; C08F220/12; C08F220/22; G03F7/004; G03F7/039; H01L21/027
Domestic Patent References:
JP2011145424A2011-07-28
JP2009008824A2009-01-15
JP2012027438A2012-02-09
Foreign References:
US20110318688A12011-12-29
WO2011087144A12011-07-21
WO2012046607A12012-04-12
WO2011105626A12011-09-01
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation