Invention Grant
- Patent Title: Method of forming resist pattern
- Patent Title (中): 形成抗蚀剂图案的方法
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Application No.: US13614017Application Date: 2012-09-13
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Publication No.: US08968990B2Publication Date: 2015-03-03
- Inventor: Jiro Yokoya , Tsuyoshi Nakamura , Hiroaki Shimizu , Hideto Nito
- Applicant: Jiro Yokoya , Tsuyoshi Nakamura , Hiroaki Shimizu , Hideto Nito
- Applicant Address: JP Kawasaki-shi
- Assignee: Tokyo Ohka Kogyo Co., Ltd.
- Current Assignee: Tokyo Ohka Kogyo Co., Ltd.
- Current Assignee Address: JP Kawasaki-shi
- Agency: Knobbe Martens Olson & Bear LLP
- Priority: JP2011-202030 20110915; JP2011-208013 20110922; JP2011-212490 20110928
- Main IPC: G03F7/26
- IPC: G03F7/26 ; G03F7/20 ; G03F7/004 ; G03F7/38 ; G03F7/039

Abstract:
A method of forming a resist pattern, including: step (1) in which a resist composition including a base component, a photobase generator component and an acid supply component is applied to a substrate to form a resist film; step (2) in which the resist film is subjected to exposure without being subjected to prebaking; step (3) in which baking is conducted after step (2), such that, at an exposed portion of the resist film, the base generated from the photobase generator component upon the exposure and an acid derived from the acid supply component are neutralized, and at an unexposed portion of the resist film, the solubility of the base component in an alkali developing solution is increased by the action of the acid derived from the acid supply component; and step (4) in which the resist film is subjected to an alkali development, thereby forming a negative-tone resist pattern.
Public/Granted literature
- US20130189618A1 METHOD OF FORMING RESIST PATTERN Public/Granted day:2013-07-25
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