Patent ID: 8592956

Claim:
A resist underlayer film composition, wherein the composition contains a polymer obtained by condensation of: (a) at least one compound represented by the following general formula (1-1) and at least one compound or equivalent body thereof represented by the following general formula (2); or (b) at least one compound represented by the following general formula (1-1), at least one compound represented by the following general formula (1-2), and at least one compound or equivalent body thereof represented by the following general formula (2): wherein R 1 to R 8 independently represent any of a hydrogen atom, a halogen atom, a hydroxyl group, an isocyanato group, a glycidyloxy group, a carboxyl group, an amino group, an alkoxyl group having 1 to 30 carbon atoms, an alkoxy carbonyl group having 1 to 30 carbon atoms, and an alkanoyloxy group having 1 to 30 carbon atoms, or an optionally-substituted saturated or unsaturated organic group having 1 to 30 carbon atoms, wherein two substituent groups arbitrarily selected from each of R 1 to R 4 or R 5 to R 8 may be bonded to form a cyclic substituent group within a molecule, and wherein X represents a single bond or a saturated or a unsaturated organic group having 1 to 30 carbon atoms.