A radiation-sensitive resin composition comprising (A) a compound of the following formula (1),
 (R1, R2, and R3 is hydrogen, hydroxyl group, or monovalent organic group and R4 is monovalent acid-dissociable group), (B) an alkali insoluble or scarcely soluble resin comprising a recurring unit of the following formula (2),
 (R5 is hydrogen or monovalent organic group, R' hydrogen or methyl, n 1-3, m 0-3) and a recurring unit containing acid-dissociable group, and (C) a photoacid generator. The resin composition is useful as a chemically amplified resist, exhibits high sensitivity, resolution, radiation transmittance, and surface smoothness, and is free from the problem of partial insolublization during overexposure.
                            一种辐射敏感
树脂组合物,包括(A)下式(1)的化合物、
 (R1、R2 和 R3 为氢、羟基或一价有机基团,R4 为一价酸解离基团),(B)碱不溶性或难溶性
树脂,包括下式(2)的循环单元、
 (R5 为氢或一价有机基团,R' 为氢或甲基,n 1-3,m 0-3)和含有酸可分解基团的循环单元,以及 (C) 光酸发生器。该
树脂组合物可用作
化学放大抗蚀剂,具有高灵敏度、高分辨率、高辐射透过率和表面平滑度,并且不会在过度曝光时出现部分不溶解的问题。