Patent ID: 11169441

Abstract:
A resist underlayer film forming composition characterized by containing (A) a compound represented by formula (1) (in formula (1), independently, R1 represents a C1 to C30 divalent group; each of R2 to R7 represents a C1 to C10 linear, branched, or cyclic alkyl group, a C6 to C10 aryl group, a C2 to C10 alkenyl group, a thiol group, or a hydroxyl group; at least one R5 is a hydroxyl group or a thiol group; each of m2, m3, and m6 is an integer of 0 to 9; each of m4 and m7 is an integer of 0 to 8; m5 is an integer of 1 to 9; n is an integer of 0 to 4; and each of p2 to p7 is an integer of 0 to 2) and a cross-linkable compound represented by formula (2-1) or (2-2) (in formula (2), Q1 represents a single bond or an m12-valent organic group; each of R12 and R15 independently represents a C2 to C10 alkyl group or a C2 to C10 alkyl group having a C1 to C10 alkoxy group; each of R13 and R16 represents a hydrogen atom or a methyl group; each of R14 and R17 represents a C1 to C10 alkyl group or a C6 to C40 aryl group; n12 is an integer of 1 to 3; n13 is an integer of 2 to 5; n14 is an integer of 0 to 3; n15 is an integer of 0 to 3, with these ns having a relationship of 3≤(n12+n13+n14+n15)≥6; n16 is an integer of 1 to 3; n17 is an integer of 1 to 4; n18 is an integer of 0 to 3; n19 is an integer of 0 to 3, with these ns having a relationship of 2≤(n16+n17+n18+n19)≤5; and m12 is an integer of 2 to 10).