Acetal compound, polymer, resist composition and patterning response
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US06515149B2
公开(公告)日:2003-02-04
Acetal compounds in which a 5- or 6-membered ring acetal structure is connected to a norbornene structure through a linker represented by —(CH2)m— in which one hydrogen atom may be substituted with a hydroxyl or acetoxy group, and m is from 1 to 8 are novel. Using the acetal compounds as a monomer, polymers are obtained. A resist composition comprising the polymer as a base resin is sensitive to high-energy radiation and has excellent sensitivity, resolution, and etching resistance.