Patent ID: 11899363
Assignee: SUMITOMO CHEMICAL COMPANY LIMITED
Field: Organic fine chemistry (Chemistry)
Classification: CPC G  C | IPC C  G

Claim 14:
15. The resist composition according to claim 14, wherein the resin having an acid-labile group includes at least one selected from the group consisting of a structural unit represented by formula (a1-1) and a structural unit represented by formula (a1-2):, wherein, in formula (a1-1) and formula (a1-2),
La1 and La2 each independently represent —O— or *—O—(CH2)k1—CO—O—, k1 represents an integer of 1 to 7, and * represents a bond to —CO—,
Ra4 and Ra5 each independently represent a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom,
Ra6 and Ra7 each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alicyclic hydrocarbon group having 3 to 18 carbon atoms, an aromatic hydrocarbon group having 6 to 18 carbon atoms, or a group obtained by combining these groups,

m1 represents an integer of 0 to 14,
n1 represents an integer of 0 to 10, and
n1′ represents an integer of 0 to 3.