RESIST COMPOSITION, METHOD OF FORMING RESIST PATTERN, AND NOVEL COMPOUND AND ACID GENERATOR
申请人:UTSUMI Yoshiyuki
公开号:US20100015555A1
公开(公告)日:2010-01-21
A resist composition including a base component that exhibits changed solubility in an alkali developing solution under the action of acid, and an acid generator consisting of a compound represented by general formula (b1). In formula (b1), Y
1
represents a fluorinated alkylene group of 1 to 4 carbon atoms, X represents an aliphatic cyclic group of 3 to 30 carbon atoms, R
11
′ to R
13
′ each represents an aryl group or alkyl group, provided that at least one of R
11
′ to R
13
′ is an aryl group having a substituent represented by general formula (b1-0), and two alkyl groups among R
11
′ to R
13
′ may be bonded to each other to form a ring with the sulfur atom in the formula. In formula (b1-0), R
52
represents a chain-like or cyclic hydrocarbon group, and f and g each represents 0 or 1
一种抗蚀组合物,包括一种基础组分,在酸的作用下在碱性显影液中表现出改变的溶解度,以及一个酸发生剂,该酸发生剂由通式(b1)表示的化合物组成。在式(b1)中,Y1表示1至4个碳原子的氟化烷基,X表示3至30个碳原子的脂肪环状基团,R11′至R13′各自表示芳基或烷基,但至少其中一个R11′至R13′是带有通式(b1-0)所表示的取代基的芳基,且在R11′至R13′中的两个烷基可以与公式中的硫原子结合形成环。在式(b1-0)中,R52表示链状或环状的碳氢基团,f和g各自表示0或1。