Fluorinated copolymers for microlithography
    35.
    发明授权
    Fluorinated copolymers for microlithography 失效
    用于微光刻的氟化共聚物

    公开(公告)号:US07019092B2

    公开(公告)日:2006-03-28

    申请号:US10502839

    申请日:2003-02-26

    IPC分类号: C08F16/12

    摘要: Fluorinated copolymers useful in photoresist compositions and associated processes for microlithography are described. These copolymers are comprised of a fluoroalcohol or protected fluoroalcohol functional group which simultaneously imparts high ultraviolet (UV) transparency and developability in basic media to these materials and a repeat unit derived from an acrylate monomer containing a fluoroalkyl group or a hydroxyl substituted alkyl group. The materials of this invention have high UV transparency, particularly at 193 and 157 nm, which makes them highly useful for lithography at these short wavelengths.

    摘要翻译: 描述了用于光致抗蚀剂组合物和用于微光刻的相关工艺的氟化共聚物。 这些共聚物由氟代醇或受保护的氟代醇官能团构成,其同时赋予这些材料在碱性介质中高的紫外线(UV)透明性和显影性,以及衍生自含有氟代烷基或羟基取代的烷基的丙烯酸酯单体的重复单元。 本发明的材料具有高的UV透明度,特别是在193和157nm,这使得它们在这些短波长下对光刻非常有用。

    Fluoromonomer polymerization
    37.
    发明授权
    Fluoromonomer polymerization 失效
    含氟单体聚合

    公开(公告)号:US06399729B1

    公开(公告)日:2002-06-04

    申请号:US09450106

    申请日:1999-11-29

    IPC分类号: C08F11418

    CPC分类号: C08F14/18 C08F2/38

    摘要: Chain transfer agents that are chlorine-free and liquid under polymerization conditions, useful for fluoromonomer polymerization, have the following formula: R1—O—R2. They are superior to common chain transfer agents such as chloroform in being safer and environmentally benign. They are also superior to gaseous chain transfer agents such as ethane because they do not enter the fluoromonomer gas recycle streams and so do not complicate the analysis and purification of those streams.

    摘要翻译: 在聚合条件下无氯和液态的可用于含氟单体聚合的链转移剂具有以下结构式:它们比常规的链转移剂如氯仿在更安全和环境友好方面优越。 它们还优于气态链转移剂如乙烷,因为它们不进入含氟单体气体循环流,因此不会使这些流的分析和纯化复杂化。