- 专利标题: Fluorine-containing styrene acrylate copolymers and use thereof in lithographic photoresist compositions
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申请号: US09794466申请日: 2001-02-26
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公开(公告)号: US06610456B2公开(公告)日: 2003-08-26
- 发明人: Robert David Allen , Phillip Joe Brock , Hiroshi Ito , Gregory Michael Wallraff
- 申请人: Robert David Allen , Phillip Joe Brock , Hiroshi Ito , Gregory Michael Wallraff
- 主分类号: G03F7039
- IPC分类号: G03F7039
摘要:
Copolymers prepared by radical polymerization of a fluorine-containing aromatic monomer and an acrylate-based comonomer that may or may not be fluorinated. The polymers are useful in lithographic photoresist compositions, particularly chemical amplification resists. In a preferred embodiment, the polymers are substantially transparent to deep ultraviolet (DUV) radiation, i.e., radiation of a wavelength less than 250 nm, including 157 nm and 248 nm radiation, and are thus useful in DUV lithographic photoresist compositions. A method for using the composition to generate resist images on a substrate is also provided, i.e., in the manufacture of integrated circuits or the like.
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