Patent ID: 6277750
Filing Date: 2001-08-21
Classification: C08F,G03F

Abstract:
A bottom anti-reflective coating composition for use in photolithography which comprises at least a solvent and a polymer dye represented by general formula 1: ##STR5##whereinR represents a hydrogen atom, a substituted or non-substituted C.sub.1 -C.sub.20 alkyl group, a substituted or non-substituted C.sub.6 -C.sub.20 cycloalkyl group, or a substituted or non-substituted C.sub.6 -C.sub.20 aryl group,R.sup.1 represents a hydrogen atom, a substituted or non-substituted C.sub.1 -C.sub.5 alkyl group, a substituted or non-substituted C.sub.6 -C.sub.10 aryl group, or a --COOR.sup.3 group in which R.sup.3 represents a C.sub.1 -C.sub.10 alkyl group,R.sup.2 represents a substituted or non-substituted C.sub.1 -C.sub.5 alkyl group, a substituted or non-substituted C.sub.6 -C.sub.20 cycloalkyl group, or a substituted or non-substituted C.sub.6 -C.sub.20 aryl group,D is an organic chromophore which absorbs at the exposure wavelength (150-450 nm) and represents a substituted or non-substituted C.sub.6 -C.sub.30 aryl group, a substituted or non-substituted C.sub.6 -C.sub.30 condensed aryl group, or a substituted or non-substituted C.sub.4 -C.sub.30 heteroaryl group,m and o are any integer above zero, andn, p and q are any integer including zero.