Patent ID: 11921425
Assignee: TOKYO OHKA KOGYO CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC G  C  H | IPC C  G  H

Claim 0:
1. A hard mask-forming composition, which forms a hard mask used in lithography, comprising:
a resin (P) containing an aromatic ring and a polar group; and
a compound (OF) containing an oxazine ring fused to an aromatic ring,
wherein the content of the compound (OF) is 10 to 100 parts by mass based on 100 parts by mass of the resin (P), and
the compound (OF) is a compound (01) having a structure represented by the following general formula (o1-1):, wherein Ro1 is a hydrocarbon group having 1 to 20 carbon atoms which may have a substituent; Aro1 represents a monocyclic or polycyclic aromatic hydrocarbon ring having 6 to 20 carbon atoms; Ro2 is a hydroxy group, a halogen atom, a nitro group, or a hydrocarbon group having 1 to 20 carbon atoms which may have a substituent; no1 is an integer of 0 to 4; in the case where no1 is an integer of 2 or more, a plurality of Ro1s may be the same or different; no2 is an integer of 0 to 3; in the case where no2 is an integer of 2 or more, a plurality of Ro2s may be the same or different, and two or more of the plurality of Ro2s may be bonded to each other to form a 4- to 20-membered ring structure together with the carbon atom in Aro1 to which they are bonded; and marks “*” and “**” each independently represents a hydrogen atom or a bond.