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    • 3. 发明专利
    • Resist composition and resist pattern formation method
    • 电阻组合和电阻形成方法
    • JP2014085412A
    • 2014-05-12
    • JP2012232370
    • 2012-10-19
    • Tokyo Ohka Kogyo Co Ltd東京応化工業株式会社
    • IKUKAWA TOMOHIRO
    • G03F7/004C07C381/12C09K3/00G03F7/038G03F7/039H01L21/027
    • G03F7/0382G03F7/0045G03F7/0392G03F7/0397G03F7/20
    • PROBLEM TO BE SOLVED: To provide a resist composition that can bring about a resist pattern having the roughness more reduced and having an excellent mask reproducibility in resist pattern formation.SOLUTION: The resist composition is a resist composition which generates acid upon exposure and whose solubility in respect to a developer changes in accordance with the action from acid, and it contains a base material component (A) whose solubility in respect to a developer changes in accordance with the action from acid, and an acid generator component (B) which generates acid upon exposure, and the invention is characterized in that the base material component (A) contains a polymeric compound (A1) having a constitutional unit (a0) which is a constitutional unit comprising acid decomposable group whose polarity increases by the action from acid and comprising lactone-containing cyclic group, -SO-containing cyclic group or carbonate-containing cyclic group, and the acid generator component (B) contains an acid generator (B1) comprising of a compound having a nitrogen atom with proton acceptor property and an acid generating portion that generates acid upon exposure within the same molecule.
    • 要解决的问题:提供一种抗蚀剂组合物,其可以产生具有更小的粗糙度并且在抗蚀剂图案形成中具有优异的掩模再现性的抗蚀剂图案。溶胶:抗蚀剂组合物是在曝光时产生酸并且其溶解度 关于显影剂根据酸的作用而发生变化,并且其含有相对于显影剂的溶解度根据酸的作用而变化的基材组分(A)和产生酸的产生剂组分(B) 本发明的特征在于,所述基材成分(A)含有具有结构单元(a0)的高分子化合物(A1),所述结构单元(a0)是包含酸分解性基团的结构单元,所述结构单元的极性通过酸的作用而增加, 含有内酯的环状基团,含-SO的环状基团或含碳酸酯的环状基团,和酸发生剂组合物 nt(B)含有由具有质子受体特性的氮原子的化合物和在同一分子内暴露时产生酸的酸产生部分的酸发生剂(B1)。