摘要:
PROBLEM TO BE SOLVED: To provide a pattern forming method by which a positive pattern such as a high-aspect dot pattern can be obtained without causing a pattern collapse by making a negative pattern created by development with organic solvent insoluble in organic solvent by post-development baking and applying solution containing a resin including 75 mass% or more of carbon to the pattern and causing image reversal by dry etching to thereby obtain a positive pattern.SOLUTION: The pattern forming method comprises: applying and prebaking the following chemically amplified resist material on a substrate to be processed; irradiating the obtained resist film with a high energy beam for patterning; subjecting the resist film to post-exposure baking (PEB); developing the resist film with an organic solvent to obtain a negative pattern; heating the obtained negative pattern to impart durability against an organic solvent to be used for a solution comprising a resin including 75 mass% or more of carbon; and carrying out an image reversal process to convert the negative pattern into a positive pattern by applying a solution comprising a resin including 75 mass% or more of carbon, and prebaking and dry etching. The chemically amplified resist material comprises: a resin which has a repeating unit having a structure including an acid-labile group that is desorbed by an acid and which is changed into insoluble with an organic solvent by the desorption of the acid-labile group; a photoacid generator; and an organic solvent.
摘要:
PROBLEM TO BE SOLVED: To provide a composition for forming a titanium-containing resist underlayer film for forming a resist underlayer film having excellent adhesiveness in fine patterning and excellent etching selectivity with a conventional organic film and a silicon-containing film.SOLUTION: The invention provides a composition for forming a titanium-containing resist underlayer film comprising: as component (A), a silicon-containing compound obtained by hydrolysis and/or condensation of one or more kinds of silicon compounds shown by the general formula (A-I) defined by RRRSi(OR); and, as component (B), a titanium-containing compound obtained by hydrolysis and/or condensation of one or more kinds of hydrolyzable titanium compounds shown by the general formula (B-I) defined by Ti(OR).
摘要:
PROBLEM TO BE SOLVED: To provide an organic film material having high dry etching resistance as well as advanced filling/planarizing characteristics.SOLUTION: The invention provides a compound for forming an organic film having a partial structure represented by the general formula (i) or (ii). (In the formula, ring structures Ar1, Ar2 and Ar3 each represent a substituted or unsubstituted benzene ring or naphthalene ring; e is 0 or 1; Rrepresents a hydrogen atom or a linear, branched or cyclic monovalent organic group having 1 to 30 carbon atoms; Lrepresents a linear, branched or cyclic divalent organic group having 1 to 32 carbon atoms, where the methylene group included in Lmay be substituted by an oxygen atom or a carbonyl group.)
摘要:
PROBLEM TO BE SOLVED: To provide a resist underlayer film applicable not only to a negatively developed resist pattern formed by a hydrophilic organic compound but also to a conventional positively developed resist pattern formed by a hydrophobic compound.SOLUTION: A silicon-containing surface modifier contains one or more of a repeating unit shown by the specified general formula (A) and a partial structure shown by the specified general formula (C).
摘要:
PROBLEM TO BE SOLVED: To provide a resist underlayer film material which gives an underlayer film, particularly for a three-layer resist process, capable of reducing reflectance, having an n-value and a k-value preferable as an antireflection film, having excellent filling-up characteristics and high pattern-bending resistance while not causing line fall or wiggling after etching of a high aspect line that is particularly thinner than 60 nm, and having sufficient solvent resistance even with low-temperature PAB (post application baking), and to provide a production method of polymer for a resist underlayer film, and a pattern forming method using the material.SOLUTION: The resist underlayer film material comprises a polymer which is obtained by condensing a condensate obtained by condensing at least one kind of compound expressed by general formula (1-1) and at least one kind of compound expressed by general formula (2-3) or equivalent compounds thereof, with at least one kind of compound expressed by general formula (2-1), (2-2) and equivalent compounds thereof.
摘要:
PROBLEM TO BE SOLVED: To provide a resist underlayer film material, from which an underlayer film can be formed, the film capable of reducing reflectance as an underlayer film for a three-layer resist process (that is, having optimal n-value and k-value as an antireflection film), having excellent filling characteristics and high resistance against pattern bending, in particular, preventing collapse or distortion of lines after etching in a thin high-aspect line having a width of less than 60 nm, and to provide a pattern forming method using the same.SOLUTION: A resist underlayer film material contains at least a polymer obtained by condensing one kind or more of compounds expressed by general formula (1-1) and/or (1-2), and one kind or more of compounds of benzaldehyde having a hydroxyl group and/or naphthaldehyde having a hydroxyl group and/or an equivalent thereof.
摘要:
PROBLEM TO BE SOLVED: To provide a heat-curable silicon-containing film-forming composition that forms an excellent pattern by using a formed silicon-containing intermediate film and ensures effective transfer of a photoresist pattern and accurate processing of a substrate. SOLUTION: The heat-curable silicon-containing film-forming composition comprises (A) a silicon-containing compound obtained through hydrolytic condensation of a hydrolyzable silicon compound in the presence of an acid catalyst, (B) a compound represented by the formula (1): L a H b X (wherein L is Li, Na, K, Rb or Ce; X is a hydroxy group or an organic acid group; a is ≥1; and b is 0 or ≥1) or (2) a compound represented by the formula (2): M a H b A (wherein M is sulfonium, iodonium or ammonium; and A is the X or a nonnucleophilic counter ion), (C) an organic acid, (D) an alcohol containing a cyclic ether as a substituent group and (E) an organic solvent. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a composition for forming a silicon-containing film enabling good patterning of a photoresist film to be formed on a silicon-containing intermediate film which is formed by using the composition. SOLUTION: The composition for forming a thermosetting silicon-containing film comprises (A-1) a silicon-containing compound prepared by effecting hydrolytic condensation of a hydrolyzable silicon compound using an acid catalyst and removing the acid catalyst from the obtained reaction mixture, (A-2) a silicon-containing compound obtained by effecting hydrolytic condensation of a hydrolyzable silicon compound using a basic catalyst and removing the basic catalyst from the obtained reaction mixture, (B) a compound expressed by formula (1): L a H b X (L is Li, Na, K, Rb or Cs; X is OH or an organic acid group; a is ≥1, b is 0 or ≥1, a+b is the number of hydroxy groups or organic acid groups) or formula (2): MA (M is sulfonium, iodonium or ammonium; A is a non-nucleophilic counter ion), (C) a 1-30C organic acid and (D) an organic solvent. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a silicon-containing film for an etching mask, a silicon-containing film forming composition for an etching mask which can form a film by spin coating, forms a resist film thereon with an excellent resist pattern, and has a high etching selectivity relative to organic films because of its relatively high silicon content, and to provide a substrate processing intermediate and a processed substrate processing method using the same. SOLUTION: The silicon-containing film forming composition for an etching mask is used for an intermediate film in a multilayer resist process for forming in sequence an undercoat film, a silicon-containing film and a photoresist film on a processed substrate, and applying etching in multiple stages, wherein the silicon-containing film forming composition comprises a silicon-containing polymer obtained through hydrolytic condensation of one or a mixture of hydrolyzable silanes including an Si-Si bond-containing silane compound represented by the formula (1): R (6-m) Si 2 X m , wherein R is a monovalent hydrocarbon group; X is alkoxy, alkanoyloxy or halogen; and m is 3-6. COPYRIGHT: (C)2007,JPO&INPIT