申请人:TOKYO OHKA KOGYO CO., LTD.
公开号:US20180024433A1
公开(公告)日:2018-01-25
A resist composition which generates an acid upon exposure and whose solubility on a developing solution changes under the action of the acid, including a polymer compound having units represented by formulas (a0-1), (a0-2), and (a0-3) in an amount of 0 to 10 mol %. In the formulas, R is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a halogenated alkyl group having 1 to 5 carbon atoms, Va
01
and Va
03
are a divalent hydrocarbon group, n
a01
and n
a03
each are an integer of 0 to 2, Ra
0
″ is a specific acid dissociable group, Va
02
is a divalent linking group containing a hetero atom or a single bond, Ra
07
is a monovalent organic group, n
a021
is an integer of 0 to 3, and n
a022
is an integer of 1 to 3.