Invention Grant
- Patent Title: Patterning process and resist composition
- Patent Title (中): 图案化过程和抗蚀剂组成
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Application No.: US12787823Application Date: 2010-05-26
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Publication No.: US08741554B2Publication Date: 2014-06-03
- Inventor: Jun Hatakeyama , Kazuhiro Katayama , Youichi Ohsawa , Masaki Ohashi
- Applicant: Jun Hatakeyama , Kazuhiro Katayama , Youichi Ohsawa , Masaki Ohashi
- Applicant Address: JP Tokyo
- Assignee: Shin-Etsu Chemical Co., Ltd.
- Current Assignee: Shin-Etsu Chemical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2009-126152 20090526
- Main IPC: G03F7/38
- IPC: G03F7/38 ; G03F7/40 ; G03F7/20

Abstract:
A pattern is formed by coating a first positive resist composition comprising a base resin, a photoacid generator, and a base generator onto a substrate to form a first resist film, patternwise exposure, PEB, and development to form a first resist pattern, heating the first resist pattern for causing the base generator to generate a base for inactivating the pattern to acid, coating a second positive resist composition comprising a C3-C8 alcohol and an optional C6-C12 ether onto the first resist pattern-bearing substrate to form a second resist film, patternwise exposure, PEB, and development to form a second resist pattern.
Public/Granted literature
- US20100304297A1 PATTERNING PROCESS AND RESIST COMPOSITION Public/Granted day:2010-12-02
Information query
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