SULFONIUM COMPOUND, POSITIVE RESIST COMPOSITION, AND RESIST PATTERN FORMING PROCESS
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20200071268A1
公开(公告)日:2020-03-05
A novel sulfonium compound has formula (A). A positive resist composition comprising a polymer and a quencher containing the sulfonium compound is improved in resolution and LER during pattern formation and has storage stability. In formula (A), R
1
, R
2
, R
3
, and R
4
are independently a C
1
-C
20
monovalent hydrocarbon group, p is an integer of 0-5, q is an integer of 0-5, and r is an integer of 0-4.
一种新的磺鎵化合物具有公式(A)。包含聚合物和含有磺鎵化合物的熄灭剂的正性光刻胶组合物在图案形成期间具有更好的分辨率和LER,并具有储存稳定性。在公式(A)中,R1、R2、R3和R4分别是C1-C20单价烃基,p是0-5的整数,q是0-5的整数,r是0-4的整数。