Abstract:
A composition for forming a resist underlayer film includes a polymer having a structural unit represented by a formula (1). Ar1, Ar2, Ar3 and Ar4 each independently represent a divalent aromatic hydrocarbon group or a divalent heteroaromatic group. A part or all of hydrogen atoms included in the divalent aromatic hydrocarbon group and the divalent heteroaromatic group represented by Ar1, Ar2, Ar3 or Ar4 may be substituted. R1 represents a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms. A part or all of hydrogen atoms included in the divalent hydrocarbon group represented by R1 may be substituted. The divalent hydrocarbon group represented by R1 may have an ester group, an ether group or a carbonyl group in a structure thereof. Y represents a carbonyl group or a sulfonyl group. m is 0 or 1. n is 0 or 1.
Abstract:
A pattern-forming method includes: (1) a resist underlayer film-forming step of providing a resist underlayer film on an upper face side of a substrate by coating a resist underlayer film-forming composition containing a resin having a phenolic hydroxyl group; (2) a resist pattern-forming step of forming a resist pattern on an upper face side of the resist underlayer film; (3) a pattern-forming step of dry etching at least the resist underlayer film and the substrate, with the aid of the resist pattern as a mask to form a pattern on the substrate; and (4) a resist underlayer film-removing step of removing the resist underlayer film on the substrate with a basic solution, in the order of (1) to (4).
Abstract:
A resin composition for forming a resist underlayer film includes a resin that includes an aromatic ring, and a crosslinking agent having a partial structure represented by a following formula (i). X represents an oxygen atom, a sulfur atom, *—COO— or —NRA—. R1 represents a hydrogen atom or a C1-30 monovalent hydrocarbon group. R2 represents a hydroxy group, a sulfanil group, a cyano group, a nitro group, a C1-30 monovalent hydrocarbon group, a C1-30 monovalent oxyhydrocarbon group or a C1-30 monovalent sulfanilhydrocarbon group. p is an integer of 1 to 3.
Abstract:
A composition for forming a resist underlayer film includes a polymer having a structural unit represented by a formula (1). Ar1, Ar2, Ar3 and Ar4 each independently represent a divalent aromatic hydrocarbon group or a divalent heteroaromatic group. A part or all of hydrogen atoms included in the divalent aromatic hydrocarbon group and the divalent heteroaromatic group represented by Ar1, Ar2, Ar3 or Ar4 may be substituted. R1 represents a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms. A part or all of hydrogen atoms included in the divalent hydrocarbon group represented by R1 may be substituted. The divalent hydrocarbon group represented by R1 may have an ester group, an ether group or a carbonyl group in a structure thereof. Y represents a carbonyl group or a sulfonyl group. m is 0 or 1. n is 0 or 1.
Abstract:
A resin composition for forming a resist underlayer film includes a resin that includes an aromatic ring, and a crosslinking agent having a partial structure represented by a following formula (i). X represents an oxygen atom, a sulfur atom, *—COO— or —NRA—. R1 represents a hydrogen atom or a C1-30 monovalent hydrocarbon group. R2 represents a hydroxy group, a sulfanil group, a cyano group, a nitro group, a C1-30 monovalent hydrocarbon group, a C1-30 monovalent oxyhydrocarbon group or a C1-30 monovalent sulfanilhydrocarbon group. p is an integer of 1 to 3.
Abstract:
A method for forming a pattern includes providing a resist underlayer film on a substrate using a first composition for forming a resist underlayer film. The first composition includes a polymer having a structural unit represented by a following formula (1). In the formula (1), Ar1 and Ar2 each independently represent a bivalent group represented by a following formula (2). A resist coating film is provided on the resist underlayer film using a resist composition. A resist pattern is formed using the resist coating film. A predetermined pattern is formed on the substrate by sequentially dry-etching the resist underlayer film and the substrate using the resist pattern as a mask.
Abstract:
A resist underlayer film-forming composition includes a polymer including a repeating unit shown by a formula (1), and having a polystyrene-reduced weight average molecular weight of 3000 to 10,000, and a solvent. Each of R3 to R8 individually represent a group shown by the following formula (2) or the like. R1 represents a single bond or the like. R2 represents a hydrogen atom or the like.
Abstract translation:抗蚀剂下层膜形成组合物包括含有式(1)所示的重复单元,聚苯乙烯换算的重均分子量为3000〜10,000的聚合物和溶剂。 R 3〜R 8各自独立地表示下述式(2)所示的基团等。 R1表示单键等。 R2表示氢原子等。