Invention Grant
- Patent Title: Resist pattern-forming method
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Application No.: US15592373Application Date: 2017-05-11
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Publication No.: US10564546B2Publication Date: 2020-02-18
- Inventor: Tomohiko Sakurai , Sousuke Oosawa , Hiromitsu Nakashima , Kousuke Terayama
- Applicant: JSR CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JSR CORPORATION
- Current Assignee: JSR CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2016-096529 20160512; JP2017-094229 20170510
- Main IPC: G03F7/11
- IPC: G03F7/11 ; G03F7/20

Abstract:
A resist pattern-forming method includes applying a photoresist composition directly or indirectly on a front face of a substrate to form a photoresist film. A topcoat layer is laminated directly or indirectly on a front face of the photoresist film. The photoresist film is subjected to liquid immersion lithography in a presence of a liquid immersion liquid on a front face of the topcoat layer. Part of the topcoat layer is removed after subjecting the photoresist film to the liquid immersion lithography. The photoresist film is developed after the part of the topcoat layer is removed.
Public/Granted literature
- US20170329228A1 RESIST PATTERN-FORMING METHOD Public/Granted day:2017-11-16
Information query
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