RADIATION-SENSITIVE RESIN COMPOSITION, METHOD FOR FORMING RESIST PATTERN, POLYMER AND POLYMERIZABLE COMPOUND
申请人:ASANO Yuusuke
公开号:US20120237875A1
公开(公告)日:2012-09-20
A radiation-sensitive resin composition includes a first polymer including an acid-labile group, an acid generator to generate an acid upon exposure to radiation, and a second polymer including a fluorine atom and a functional group shown by a general formula (x). The second polymer has a fluorine atom content higher than a fluorine atom content of the first polymer. R
1
represents an alkali-labile group. A represents an oxygen atom, —NR′—, —CO—O—
#
or —SO
2
—O—
##
, wherein the oxygen atom represented by A is not an oxygen atom bonded directly to an aromatic ring, a carbonyl group, or a sulfoxyl group, R′ represents a hydrogen atom or an alkali-labile group, and “#” and “##” indicates a bonding hand bonded to R
1
.
-A-R
1
(x)
一种辐射敏感树脂组合物包括第一聚合物,其中包括酸敏感基团,酸发生剂用于在辐射照射后生成酸,以及第二聚合物,其中包括氟原子和由通用公式(x)表示的功能基团。第二聚合物的氟原子含量高于第一聚合物的氟原子含量。R1代表碱性易裂解基团。A代表氧原子,-NR′—,-CO—O—#或-SO2—O—##,其中A代表的氧原子不是直接与芳香环、酰基或亚砜基结合的氧原子,R′代表氢原子或碱性易裂解基团,“#”和“##”表示与R1结合的键合手。-A-R1(x)