IP Library › Granted Patent US 8,785,106
Granted Patent B2
US 8,785,106 · App. 13/772,658 · Granted Jul 22, 2014

Resist composition and method of forming resist pattern

Inventors: Yoshitaka Komuro (Kawasaki, JP); Toshiaki Hato (Kawasaki, JP)
Assignee: Tokyo Ohka Kogyo Co., Ltd.
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Quick Facts
Patent No.
US 8,785,106
App. No.
13/772,658
Granted
Jul 22, 2014
Kind
B2
Abstract

A resist composition including: a base component (A) that exhibits changed solubility in a developing solution by the action of acid; a photoreactive quencher (C); and an acid generator component (B) that generates acid upon exposure, wherein the photoreactive quencher (C) contains a compound (C) represented by general formula (c1) shown below. In the formula, X represents a cyclic group of 3 to 30 carbon atoms which may have a substituent; R 1 represents a divalent linking group; R 2 represents an arylene group which may have a substituent, and each of R 3 and R 4 independently represents an aryl group which may have a substituent; R 3 and R 4 may be mutually bonded with the sulfur atom to form a ring; R 5 represents a hydroxy group, a halogen atom, an alkyl group of 1 to 5 carbon atoms, an alkoxy group or a fluorinated alkyl group; p represents an integer of 0 to 2; and q represents an integer of 0 to 3.

Claims (5)

1. A resist composition comprising: a base component (A) that exhibits changed solubility in a developing solution by the action of acid; a photoreactive quencher (C); and an acid generator component (B) that generates acid upon exposure, wherein

the photoreactive quencher (C) contains a compound (C1) represented by general formula (c1) shown below:

wherein X represents a cyclic group of 3 to 30 carbon atoms which may have a substituent; R 1 represents a divalent linking group; R 2 represents an arylene group which may have a substituent, and each of R 3 and R 4 independently represents an aryl group which may have a substituent; R 3 and R 4 may be mutually bonded with the sulfur atom to form a ring; R 5 represents a hydroxy group, a halogen atom, an alkyl group of 1 to 5 carbon atoms, an alkoxy group or a fluorinated alkyl group; p represents an integer of 0 to 2; and q represents an integer of 0 to 3.

2. The resist composition according to claim 1 , wherein the base component (A) is a base component (A0) that exhibits increased polarity by the action of acid.

3. A method of forming a resist pattern, comprising: forming a resist film on a substrate using a resist composition of claim 1 ; conducting exposure of the resist film; and developing the resist film to form a resist pattern.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 21, 2013
From: KOMURO, YOSHITAKA; HATO, TOSHIAKI
To: TOKYO OHKA KOGYO CO., LTD.
Reel/Frame 029849/0624 →
Priority Claims (1)
JP 2012-037920 · Feb 23, 2012 · national
Continuity (1)
Related Publication 20130224658A1 · Aug 29, 2013