Lactone-containing compound, polymer, resist composition, and patterning process
    23.
    发明授权
    Lactone-containing compound, polymer, resist composition, and patterning process 有权
    含内酯的化合物,聚合物,抗蚀剂组合物和图案化工艺

    公开(公告)号:US07871752B2

    公开(公告)日:2011-01-18

    申请号:US11878759

    申请日:2007-07-26

    IPC分类号: G03F7/004 G03F7/30

    摘要: Lactone-containing compounds having formula (1) are novel wherein R1 is H, F, methyl or trifluoromethyl, R2 and R3 are monovalent hydrocarbon groups, or R2 and R3 may together form an aliphatic hydrocarbon ring, R4 is H or CO2R5, R5 is a monovalent hydrocarbon group, W is CH2, O or S, and k1 is 0 or 1. They are useful as monomers to produce polymers which are transparent to radiation≦500 nm. Radiation-sensitive resist compositions comprising the polymers as base resin exhibit excellent properties including resolution, pattern edge roughness, pattern density dependency and exposure margin.

    摘要翻译: 具有式(1)的含内酯的化合物是新的,其中R 1是H,F,甲基或三氟甲基,R 2和R 3是一价烃基,或者R 2和R 3可以一起形成脂族烃环,R 4是H或CO 2 R 5,R 5是 一价烃基,W是CH 2,O或S,k 1是0或1.它们可用作产生对辐射透明的聚合物的单体; 500nm。 包含作为基础树脂的聚合物的辐射敏感性抗蚀剂组合物表现出优异的性能,包括分辨率,图案边缘粗糙度,图案密度依赖性和曝光余量。