Patent ID: 11934099
Assignee: TOKYO OHKA KOGYO CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A resist composition which generates an acid upon exposure and exhibits changed solubility in a developing solution under action of acid, the resist composition comprising:
a resin component (A1) exhibiting changed solubility in a developing solution under action of acid;
an acid generator component (B) generating an acid upon exposure; and
a photo-degradable base (D1) which controls diffusion of the acid generated upon exposure from the acid generator component (B),
wherein the resin component (A1) has a constitutional unit (a01) derived from a compound represented by General Formula (a01-1) and a constitutional unit (a02) derived from a compound represented by General Formula (a02-1),
the acid generator component (B) contains a compound (B1-10) represented by General Formula (b1-10) or a compound (B1-14) represented by General Formula (b1-14), and
the photo-degradable base (D1) contains a compound represented by General Formula (dl-1) or a compound represented by General Formula (d1-2), and
the proportion of the compound (B1-10) represented by General Formula (b1-10) or the compound (B1-14) represented by General Formula (b1-14) in the acid generator component (B) is 90% by mass or more with respect to the total mass of the acid generator component (B):, wherein W01 represents a polymerizable group-containing group, Ct represents a tertiary carbon atom, and a carbon atom at an α-position of Ct constitutes a carbon-carbon unsaturated bond, R11 represents an aromatic hydrocarbon group or a chain hydrocarbon group, which may have a substituent, and R12 and R13 each independently represent a chain hydrocarbon group which may have a substituent or R12 and R13 are bonded to each other to form a cyclic group which may have a substituent;, wherein W02 represents a polymerizable group-containing group, W02 represents an aromatic hydrocarbon group, provided that part or all of hydrogen atoms which the aromatic hydrocarbon group has may be substituted with a substituent other than a hydroxy group, Wa02 may form a condensed ring with W02, and n02 represents 1 or 2;, wherein, in General Formula (d1-1), Rd1 represents a cyclic group which may have a substituent, a chain alkyl group which may have a substituent, or chain alkenyl group which may have a substituent, m represents an integer of 1 or greater, and M′m+ represents an m-valent organic cation,
wherein in General Formula (d1-2), Rd3 and Rd4 each independently represents a cyclic group which may have a substituent, a chain alkyl group which may have a substituent, or chain alkenyl group which may have a substituent, Yd1 represents a single bond or a divalent linking group, m represents an integer of 1 or greater, and M′m+ represents an m-valent organic cation,
and wherein in General Formulas (b1-10) and (b1-14), m represents an integer of 1 or greater, and Mm+ represents an m-valent organic cation.