Fluorine-containing compound, fluorine-containing polymer, postive-type resist composition, and patterning process using same
申请人:Central Glass Company, Limited
公开号:US07887990B2
公开(公告)日:2011-02-15
Disclosed is a fluorine-containing compound represented by formula (1),
wherein R1 represents a polymerizable double-bond containing group, R2 represents an acid-labile protecting group, R3 represents a fluorine atom or fluorine-containing alkyl group, and W represents a bivalent linking group. This compound can provide a fluorine-containing polymer compound that has a weight-average molecular weight of 1,000-1,000,000 and contains a repeating unit represented by formula (2),
wherein R2, R3 and W are defined as above, each of R4, R5 and R6 independently represents a hydrogen atom, fluorine atom or monovalent organic group, at least two of R4, R5 and R6 may be combined to form a ring. This polymer compound can provide a resist composition capable of forming a pattern that is transparent to exposure light and superior in rectangularity.
本发明涉及一种含氟化合物,其化学式为(1),其中R1代表可聚合的双键含基团,R2代表酸敏感保护基团,R3代表氟原子或含氟烷基团,W代表双价连接基团。该化合物可提供一种含氟聚合物化合物,其重均分子量为1,000-1,000,000,并含有由式(2)表示的重复单元,其中R2、R3和W如上所定义,R4、R5和R6中的每一个独立地代表氢原子、氟原子或一价有机基团,其中至少两个R4、R5和R6可组成环。该聚合物化合物可提供一种抗蚀剂组合物,其能够形成对曝光光线透明且在矩形度方面优越的图案。