Patent ID: 6165684
Filing Date: 2000-12-26
Classification: G03F

Abstract:
A composition for a bottom anti-reflective coating material, comprising a polymer compound having a repeating unit of the structure represented by formula (V) or (VI): ##STR15## wherein R.sup.1 represents a hydrogen atom, a methyl group, a chlorine atom, a bromine atom or a cyano group; X represents a divalent linking group selected from the group consisting of a single bond, --CO.sub.2, --COHN--, --O--, --CO--, --SO.sub.2 --, an optionally substituted linear alkylene chain having from 1 to 20 carbon atoms, an optionally substituted linear alkylene chain having from 1 to 20 carbon atoms and having one or more linking groups selected from the group consisting of --CO.sub.2 --, --COHN--, --O--, --CO-- and --SO.sub.2 -- within the alkylene chain, an optionally substituted branched alkylene chain having from 1 to 20 carbon atoms, and an alkylene chain having from 1 to 20 carbon atoms and having a cyclic alkylene structure within the alkylene chain; Y represents an oxygen atom, a sulfur atom or .dbd.N--V; Z.sub.1 and Z.sub.2, which may be the same or different, each represents an electron donating group; m and n represent an integer of from 0 to 2 and from 0 to 3, respectively, and when m and n each is 2 or 3, the Z.sub.1 groups or the Z.sub.2 groups may be the same or different; and V represents --OH, --NH.sub.2, a linear, branched or cyclic alkyl group having from 1 to 20 carbon atoms wherein the alkyl group may have a substituent, an aromatic or heteroaromatic ring group having from 5 to 14 carbon atoms, which may have a substituent, or an alkoxy group having from 1 to 20 carbon atoms; provided that in formula (V) at least one of the following conditions is satisfied: m.noteq.0, n.noteq.0, or X.noteq.a single bond.