Patent ID: 8916327

Claim:
An underlayer coating forming composition comprising a crosslinking compound, an organic solvent and a dextrin ester compound, wherein at least 50% of hydroxy groups in the dextrin are converted into ester groups of formula (1): wherein R 1 is C 1-10 alkyl group that may be substituted with a hydroxy group, a carboxyl group, a cyano group, a nitro group, a C 1-6 alkoxy group, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom or a C 1-6 alkoxycarbonyl group; or a phenyl group, a naphthyl group or an anthryl group, each of which may be substituted with a C 1-6 alkyl group, a hydroxy group, a carboxyl group, a cyano group, a nitro group, a C 1-6 alkoxy group, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom or a C 1-6 alkoxycarbonyl group, and wherein the underlayer coating composition forms an underlayer coating of a photoresist in a lithography process, and a solid content in the underlayer coating forming composition further comprises at least one light absorbing compound selected from the group consisting of a compound containing an anthracene ring, a compound containing a naphthalene ring, a compound containing a bromine atom, and a compound containing an iodine atom.