申请人:ROHM AND HAAS ELECTRONIC MATERIALS LLC
公开号:US20210108065A1
公开(公告)日:2021-04-15
A polymer comprising: a first repeating unit comprising a tertiary ester acid labile group; and a second repeating unit of Formula (1):
wherein R
1
to R
5
are as provided herein; R
2
and R
3
together do not form a ring; each A is independently a halogen, a carboxylic acid or ester, a thiol, a straight chain or branched C
1-20
alkyl, a monocyclic or polycyclic C
3-20
cycloalkyl, a monocyclic or polycyclic C
3-20
fluorocycloalkenyl, a monocyclic or polycyclic C
3-20
heterocycloalkyl, a monocyclic or polycyclic C
6-20
aryl, or a monocyclic or polycyclic C
4-20
heteroaryl, each of which is substituted or unsubstituted; and m is an integer of 0 to 4.