Patent ID: 8637219

Claim:
An aromatic ring-containing compound for a resist underlayer, the aromatic ring-containing compound being represented by Chemical Formula 1: wherein, in Chemical Formula 1, R 1 to R 6 are each independently a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C3 to C20 cycloalkenyl group, a substituted or unsubstituted C2 to C20 heteroaryl group, or a substituted or unsubstituted C2 to C20 heterocycloalkyl group, provided that at least one of R 1 to R 6 is a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 cycloalkenyl group, a substituted or unsubstituted C2 to C20 heteroaryl group, or a substituted or unsubstituted C2 to C20 heterocycloalkyl group, X 1 to X 6 are each independently a hydroxy group (—OH), a substituted or unsubstituted alkyl amine group, a substituted or unsubstituted alkoxy group, or an amino group (—NH 2 ), n1 to n6 are each independently 0 or 1, and 2≦n1+n2+n3+n4+n5+n6≦6.