Invention Grant
- Patent Title: Pattern forming process
- Patent Title (中): 图案形成过程
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Application No.: US13279614Application Date: 2011-10-24
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Publication No.: US08623590B2Publication Date: 2014-01-07
- Inventor: Jun Hatakeyama , Kenji Funatsu
- Applicant: Jun Hatakeyama , Kenji Funatsu
- 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: JP2010-246185 20101102
- Main IPC: G03F7/30
- IPC: G03F7/30 ; G03F7/38

Abstract:
A resist pattern is formed by coating a first positive resist composition comprising a polymer comprising 20-100 mol % of aromatic group-containing recurring units and adapted to turn alkali soluble under the action of an acid onto a substrate to form a first resist film, coating a second positive resist composition comprising a C3-C8 alkyl alcohol solvent which does not dissolve the first resist film on the first resist film to form a second resist film, exposing, baking, and developing the first and second resist films simultaneously with a developer.
Public/Granted literature
- US20120108043A1 PATTERN FORMING PROCESS Public/Granted day:2012-05-03
Information query
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