Invention Grant
- Patent Title: Resist protective coating material and patterning process
- Patent Title (中): 抵抗保护涂料和图案化过程
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Application No.: US11451498Application Date: 2006-06-13
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Publication No.: US08323872B2Publication Date: 2012-12-04
- Inventor: Jun Hatakeyama , Takeru Watanabe , Yuji Harada
- Applicant: Jun Hatakeyama , Takeru Watanabe , Yuji Harada
- 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: JP2005-174615 20050615
- Main IPC: G03C1/00
- IPC: G03C1/00 ; G03C5/00 ; G03F7/00

Abstract:
A resist protective coating material is provided comprising a polymer having a partial structure of formula (1) wherein R0 is H, F, alkyl or alkylene, and R1 is fluorinated alkyl or alkylene. In a pattern-forming process, the material forms on a resist film a protective coating which is water-insoluble, dissolvable in alkaline developer and immiscible with the resist film, allowing for effective implementation of immersion lithography. During alkali development, development of the resist film and removal of the protective coating can be simultaneously achieved.
Public/Granted literature
- US20070003867A1 Resist protective coating material and patterning process Public/Granted day:2007-01-04
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