申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP3168207A1
公开(公告)日:2017-05-17
A monomer of formula (1a) or (1b) is provided wherein A is a polymerizable group, R1-R6 are monovalent hydrocarbon groups, X1 is a divalent hydrocarbon group, Z1 is an aliphatic group, Z2 forms an alicyclic group, k = 0 or 1, m = 1 or 2, n = 1 to 4. A useful polymer is obtained by polymerizing the monomer. A resist composition comprising the polymer has improved development properties and is processed to form a negative pattern having high contrast, high resolution and etch resistance which is insoluble in alkaline developer.
提供了式 (1a) 或 (1b) 单体,其中 A 是可聚合基团,R1-R6 是一价烃基团,X1 是二价烃基团,Z1 是脂肪族基团,Z2 形成脂环族基团,k = 0 或 1,m = 1 或 2,n = 1 至 4。包含该聚合物的抗蚀剂组合物具有更好的显影性能,经处理后可形成具有高对比度、高分辨率和抗蚀刻性的阴图,且不溶于碱性显影剂。