WO2004034148A1 - リソグラフィー用反射防止膜形成組成物 - Google Patents
リソグラフィー用反射防止膜形成組成物 Download PDFInfo
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- WO2004034148A1 WO2004034148A1 PCT/JP2003/012875 JP0312875W WO2004034148A1 WO 2004034148 A1 WO2004034148 A1 WO 2004034148A1 JP 0312875 W JP0312875 W JP 0312875W WO 2004034148 A1 WO2004034148 A1 WO 2004034148A1
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- antireflection film
- triazinetrione
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- KAHVZNKZQFSBFW-UHFFFAOYSA-N n-methyl-n-trimethylsilylmethanamine Chemical compound CN(C)[Si](C)(C)C KAHVZNKZQFSBFW-UHFFFAOYSA-N 0.000 description 1
- ZUVBIBLYOCVYJU-UHFFFAOYSA-N naphthalene-1,7-diol Chemical compound C1=CC=C(O)C2=CC(O)=CC=C21 ZUVBIBLYOCVYJU-UHFFFAOYSA-N 0.000 description 1
- XTBLDMQMUSHDEN-UHFFFAOYSA-N naphthalene-2,3-diamine Chemical compound C1=CC=C2C=C(N)C(N)=CC2=C1 XTBLDMQMUSHDEN-UHFFFAOYSA-N 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- YCWSUKQGVSGXJO-NTUHNPAUSA-N nifuroxazide Chemical group C1=CC(O)=CC=C1C(=O)N\N=C\C1=CC=C([N+]([O-])=O)O1 YCWSUKQGVSGXJO-NTUHNPAUSA-N 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 150000002888 oleic acid derivatives Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- SVHOVVJFOWGYJO-UHFFFAOYSA-N pentabromophenol Chemical compound OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br SVHOVVJFOWGYJO-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- FTDXCHCAMNRNNY-UHFFFAOYSA-N phenol Chemical compound OC1=CC=CC=C1.OC1=CC=CC=C1 FTDXCHCAMNRNNY-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- COLNVLDHVKWLRT-UHFFFAOYSA-N phenylalanine Natural products OC(=O)C(N)CC1=CC=CC=C1 COLNVLDHVKWLRT-UHFFFAOYSA-N 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 150000003021 phthalic acid derivatives Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 239000000249 polyoxyethylene sorbitan monopalmitate Substances 0.000 description 1
- 235000010483 polyoxyethylene sorbitan monopalmitate Nutrition 0.000 description 1
- 239000001816 polyoxyethylene sorbitan tristearate Substances 0.000 description 1
- 235000010988 polyoxyethylene sorbitan tristearate Nutrition 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- BOQSSGDQNWEFSX-UHFFFAOYSA-N propan-2-yl 2-methylprop-2-enoate Chemical compound CC(C)OC(=O)C(C)=C BOQSSGDQNWEFSX-UHFFFAOYSA-N 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 239000001570 sorbitan monopalmitate Substances 0.000 description 1
- 235000011071 sorbitan monopalmitate Nutrition 0.000 description 1
- 229940031953 sorbitan monopalmitate Drugs 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 1
- ILWRPSCZWQJDMK-UHFFFAOYSA-N triethylazanium;chloride Chemical compound Cl.CCN(CC)CC ILWRPSCZWQJDMK-UHFFFAOYSA-N 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- 239000005051 trimethylchlorosilane Substances 0.000 description 1
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/11—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having cover layers or intermediate layers, e.g. subbing layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
- H01L21/0276—Photolithographic processes using an anti-reflective coating
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/091—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers characterised by antireflection means or light filtering or absorbing means, e.g. anti-halation, contrast enhancement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
- Y10S430/106—Binder containing
Definitions
- the present invention relates to a composition for an anti-reflective coating material, and more particularly, to an anti-reflective coating for reducing the reflection of exposure irradiation light from a substrate on a photoresist layer applied on a substrate in a lithography process for manufacturing a semiconductor device.
- Composition More specifically, in a lithography process for semiconductor device manufacturing using exposure light having a wavelength of 248 nm, 193 nm, or 157 nm, a compound, oligomer compound or polymer that effectively absorbs light reflected from a substrate
- the present invention relates to an antireflection film-forming composition containing a compound. Background art
- Known antireflection films include inorganic antireflection films such as titanium, titanium dioxide, titanium nitride, chromium oxide, carbon, and ⁇ -silicon, and organic antireflection films composed of a light absorbing substance and a polymer compound.
- the former uses vacuum deposition equipment, CVD equipment, While the latter requires equipment such as sputtering equipment, the latter is advantageous in that it does not require special equipment, and many studies have been conducted.
- an acrylic resin type anti-reflective coating having a hydroxyl group and a light absorbing group as a cross-linking reactive group in the same molecule for example, an acrylic resin type anti-reflective coating having a hydroxyl group and a light absorbing group as a cross-linking reactive group in the same molecule, a novolak resin type anti-reflective coating having a hydroxyl group and a light absorbing group as a crosslinking reactive group in the same molecule, etc. (For example, see Patent Documents 1 and 2).
- Desirable physical properties of the organic anti-reflective coating material include high absorbance to light and radiation, no intermixing with the photoresist layer (insoluble in photoresist solvent), and Alternatively, there may be no low-molecular-weight diffusion material from the anti-reflective coating material into the overcoating resist at the time of heating and drying, and a higher dry etching rate than the photoresist (for example, Non-Patent Documents 1 and 2). , Non-Patent Document 3.).
- the processing size that is, the size of the formed photoresist pattern has been reduced.
- the processing size that is, the size of the formed photoresist pattern has been reduced.
- the photoresist is used as a thin film, the photoresist is removed by etching in a shorter time in order to suppress a decrease in the thickness of the photoresist layer in the removal step by etching the organic anti-reflection film used together.
- Organic anti-reflective coatings that are capable of reducing costs have been desired.
- an organic antireflection film that can be used as a thinner film than before, or an organic antireflection film that has a higher etching rate selectivity with a photoresist than before has been required. It is becoming more and more.
- the study of the technology of the antireflection film has been mainly performed on the lithography process using the irradiation light having the wavelength of 365 nm, 2488 nm, and 193 nm.
- light-absorbing components and light-absorbing groups that efficiently absorb light of each wavelength have been developed and are being used as one component of organic antireflective coating compositions.
- the processing dimension will be 100 nm or less.
- Organic anti-reflective coatings used with such thin-film photoresists are required to be usable in thin films and have high dry etching selectivity to photoresists.
- the attenuation of the anti-reflection film It is considered necessary that the coefficient k be large.
- a damping coefficient k value of 0.4 to 0.6 is required.
- the attenuation coefficient k value is 0.2
- the reflectance from the substrate varies between 5% and 10%
- the attenuation coefficient k value is 0.4
- the reflectance varies between 0% and 5%.
- the attenuation coefficient k must be large, for example, 0.3 or more. Few organic anti-reflective coating materials have been known.
- Patent Document 2 US Pat. No. 5,693,691
- Patent Document 3 Japanese Patent Publication No. 11-5-1111194
- Patent Document 4 JP-A-10-186671
- Patent Document 5 JP-A-2000-187331
- Patent Document 6 Japanese Patent Application Laid-Open No. 11-279523
- Patent Document 7 JP-A-10-204110
- Patent Document 8 International Publication No. 02/086624 Pamphlet
- Patent Document 9 European Patent Application Publication No. 1 298492
- Patent Document 10 European Patent Application Publication No. 1 298493
- Non-Patent Document 1 Tom 'Lynch (TomLy nch) and 3 others, "Properties and Performance Suppoor UV Reflectivity Control Layer (propertiesan dPerfo rma nceof Ne a rUVRe f 1 ectivit y Control L ayers)", ( (USA), Indvans In Resist Technology and Processing XI (inadvancesin Register T echno 1 ogyand Processing gXI), Omkara mN a 1 amasu, Procedural Subspi I (Procedings of SP IE), 1994, Vol. 2195 (Vol. 2195), p. 225-229
- Non Patent Literature 2 G. Taylor (G. Tay 1 or) and 13 others, “Methacrylate Resistant and Antireflective Coating for 193 nm Lithography (Methacrylate Resistant Coatingsforl 93 nmLithograp hy) ) ”, (USA), DIN Microlithography 1999: AdnSinRist resist techno mouth GnD processing XV I (inM icrolithograpHpl 999: Advances ⁇ nR e s e l s tl tec hn h o 1 ogyand P rocessing XV I), Will Conley (Wi 11 C on 1 ey) ed., Proceedings of SP IE, 1999, Vol. 3678 (Vol. 3678), p. 1 74— 185
- Non-Patent Document 3 Jim 'D' Me ador and 6 others, "Recent Progress 193 nm Anti-Reflective Coatings", (USA), Inmicrolithography 1 999: Advans Inle Gist Technology and Processing XV I (inMicro crolithographyl 999: Ad vancesin R esist T ecnno 1 ogyand P rocessing XV I) Will'Conley (Wi ll Conley) 1999, Vol. 3678 (Vo 1.3678), p. 800-809
- the present invention is an anti-reflection which has a strong absorption for light of short wavelength, especially light of wavelength 248 nm, 193 nm or 157 nm.
- the present invention relates to a composition for forming an antireflection film for lithography for a film. Further, the present invention relates to a semiconductor device using irradiation light of a KrF excimer laser (wavelength: 248 nm), an ArF excimer laser (wavelength: 193 nm), or an F2 excimer laser (wavelength: 157 nm).
- An object of the present invention is to provide an antireflection film forming composition that can be used in a lithography process for manufacturing a device.
- the present invention is intended to effectively absorb reflected light from a substrate when using irradiation light from a KrF excimer laser, an ArF excimer laser, or an F2 excimer laser for microfabrication, and to improve the absorption of the light from the photoresist layer.
- An anti-reflection coating composition for anti-reflection coatings for lithography which does not cause intermixing and can be removed promptly during the subsequent removal step, and has a higher dry etching rate than photoresist.
- Another object of the present invention is to provide a method for forming an antireflection film for lithography using the antireflection film forming composition, and a method for forming a photoresist pattern. Disclosure of the invention
- the present invention provides, as a first aspect, a triazine trione compound having a hydroxyalkyl structure as a substituent on a nitrogen atom, a triazine trione oligomer compound having a hydroxyalkyl structure as a substituent on a nitrogen atom, or a substituent on a nitrogen atom
- a triazinetrione polymer compound having a hydroxyalkyl structure as an antireflection film-forming composition
- the antireflection film-forming composition according to the first aspect wherein the triazinetrione compound having a hydroxyalkyl structure as a substituent on the nitrogen atom is a compound represented by Formula (1).
- a 2 and A 3 are each a hydrogen atom
- M represents a carbon atom of 1 to 6 alkyl groups, phenyl groups, naphthyl groups, halogen atoms, alkoxycarbonyl groups having 1 to 6 carbon atoms, nitro groups, cyano groups, alkoxy groups having 1 to 6 carbon atoms or alkylthio groups having 1 to 6 carbon atoms
- a triazinetrione compound having a hydroxyalkyl structure as a substituent on the nitrogen atom a triazinetrione oligomer compound having a hydroxyalkyl structure as a substituent on the nitrogen atom, or substitution on a nitrogen atom
- a triazinetrione polymer compound having a hydroxyalkyl structure as a group a triazinetrione compound having a substituent represented by the formula (2) or (3) as a substituent on a nitrogen atom, or at least two A triazinetrione oligomer compound or a triazinetrione polymer compound having a structure in which two triazinetrione rings are linked on the nitrogen atom thereof by a linking group represented by the formula (4) or (5).
- a 2 and a 3 Ri as defined above der, Y is a direct bond or C ( 0) represents one, and Ar is an alkyl group having 1 to 6 carbon atoms, phenyl group, naphthyl group, halogen atom, alkoxycarbonyl group having 1 to 6 carbon atoms, nitro group, carboxyl group, cyano group, carbon atom Alkoxy groups of numbers 1 to 6, hydroxyl A benzene ring or a naphthalene ring which may be substituted with an alkylthio group having 1 to 6 carbon atoms or an amino group; Q represents an alkyl group having 1 to 6 carbon atoms; a cycloalkyl having 5 to 8 carbon atoms; Represents a group, Ar or one CH 2 —Ar one CH 2 —, represents an alkyl group having 1 to 6 carbon atoms, phenyl group or benzyl group, and R 2 represents a
- the triazinetrione compound having a substituent represented by the formula (2) or (3) has a structure represented by the formula (6) or the formula (7).
- the composition for forming an antireflection film according to the above (wherein A 2 , A 3 , Y, Ar, R, and R are as defined above),
- the triazinetrione oligomer compound having a hydroxyalkyl structure as a substituent on the nitrogen atom or the triazinetrione polymer compound having a hydroxyalkyl structure as a substituent on the nitrogen atom is represented by the formula (10).
- Ru reaction products der of a compound of formula (1 1) or the compound represented by the formula (12) to be anti-reflective coating forming composition according to the first aspect (wherein R 3 is 1 to carbon atoms Represents an alkyl group having 6 carbon atoms, an alkenyl group having 3 to 6 carbon atoms, a phenyl group, a benzyl group or a 2,3-epoxypropyl group, and R 4 and R 5 represent an alkyl group having 1 to 6 carbon atoms and 3 carbon atoms.
- R 6 represents an alkenyl group, a phenyl group or a benzyl group; R 6 represents an alkyl group having 1 to 6 carbon atoms, a phenyl group, a benzyl group or 1 (CH 2 ) nCOOH, and n represents 1, 2 or 3 represents the number.),
- a triazinetrione compound having a substituent represented by the formula (2) as a substituent on the nitrogen atom, or at least two triazinetrione rings represented by the formula (4) The triazine trione oligomer compound or the liadin trione polymer compound having a structure linked by the linking group represented by formula (13) has at least two nitrogen atoms having a substituent represented by the formula (13) on the nitrogen atom.
- a triazine trione compound having a carboxyl group represented by the formula (14) and water The antireflection film according to the third aspect, characterized in that the antireflection film is manufactured from a phenolic compound or a naphthalene compound having at least two same or different substituents selected from the group consisting of acid groups.
- Forming composition in formulas (13) and (14), ⁇ 1 ⁇ A 2 , A 3 , Y and Ar are as defined above),
- the triazine trione compound having at least two nitrogen atoms having a substituent represented by the formula (13) on a nitrogen atom is represented by the formula (
- the antireflection film according to the seventh aspect wherein the phenyl compound or naphthalene compound of the formula (14) is at least one compound selected from the group of compounds represented by the formulas (16) to (21).
- Forming composition (where B is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a phenyl group, a naphthyl group, a halogen atom, an alkoxycarbonyl group having 1 to 6 carbon atoms, a nitro group, a carboxyl group, a cyano group, C1-C6 alkoxy, hydroxyl, thiol, C1-C6 alkylthio or amino
- n represents a number from 1 to 6
- m represents a number from 1 to 4
- n and m are numbers greater than or equal to 2
- B is the same or different Good
- the antireflection film-forming composition according to any one of the first to ninth viewpoints, further comprising a crosslinking agent having at least two crosslinking-forming substituents,
- the antireflection film-forming composition according to any one of the tenth aspect to the tenth aspect,
- any one of the first to eleventh aspects further includes a resin having at least one cross-linking substituent selected from a hydroxyl group, a carboxyl group, an amino group and a thiol group.
- a resin having at least one cross-linking substituent selected from a hydroxyl group, a carboxyl group, an amino group and a thiol group As a first aspect, any one of the first to eleventh aspects further includes a resin having at least one cross-linking substituent selected from a hydroxyl group, a carboxyl group, an amino group and a thiol group.
- the antireflection film-forming composition according to any one of the first to the second aspects is applied on a semiconductor substrate, and the wavelength after forming the antireflection film by baking is 24.
- the antireflection film-forming composition according to any one of the first to the second aspects is applied on a semiconductor substrate, and the wavelength after forming the antireflection film by baking 15
- the antireflection film-forming composition according to any one of the first to the second aspects is applied to a semiconductor substrate, and the wave after forming the antireflection film by baking is applied.
- an antireflection film used for manufacturing a semiconductor device obtained by applying the composition for forming an antireflection film according to any one of the first aspect to the second aspect on a substrate and firing the composition.
- the antireflection film-forming composition according to any one of the first to the second aspects is applied to a substrate and baked, and has a wavelength of 248 nm and a wavelength of 19.
- the method of forming a photoresist pattern according to the eighteenth aspect wherein the exposure is performed by light having a wavelength of 2488 nm, 1933 nm or 157 nm.
- the present invention relates to a triazinetrione compound having a hydroxyalkyl structure as a substituent on a nitrogen atom, a triazinetrione oligomer compound having a hydroxyalkyl structure as a substituent on a nitrogen atom, or a hydroxyalkyl structure as a substituent on a nitrogen atom.
- An anti-reflective coating forming composition comprising: a triazine trione polymer compound having:
- the present invention relates to a composition for forming an antireflection film that can be used in a lithography process.
- the composition for forming an antireflection film of the present invention basically comprises a hydride as a substituent on a nitrogen atom.
- the solid content of the antireflection film-forming composition of the present invention is, for example, 0.1 to 50% by mass, and for example, 0.5 to 30% by mass.
- the solid component is a component obtained by removing the solvent component from all components of the antireflection film forming composition.
- a triazine trione compound having a hydroxyalkyl structure as a substituent on a nitrogen atom a triazine trione oligomer compound or a nitrogen compound having a hydroxyalkyl structure as a substituent on a nitrogen atom
- the amount of the triazinetrione polymer compound having a hydroxyalkyl structure as a substituent on an atom is 10% by mass or more per 100% by mass of the total solid content, and is, for example, 30% by mass to 99% by mass. %, For example, 50% by mass to 99% by mass, and further, for example, 60% by mass. /. ⁇ 95% by mass.
- examples of the triazinetrione compound having a hydroxyalkyl structure as a substituent on a nitrogen atom include a compound represented by the formula (1).
- a 1 A 2 and A 3 each represent a hydrogen atom, a methyl group or an ethyl group
- R represents a hydrogen atom or a methyl group
- M represents an alkyl group having 1 to 6 carbon atoms, a phenyl group, a naphthyl group, a halogen atom, an alkoxycarbonyl group having 1 to 6 carbon atoms, a nitro group, a cyano group
- Such a reaction between the compound represented by the formula (15) and the compound represented by the formula (22) is performed by the reaction of benzene, toluene, xylene, ethyl lactate, butyl lactate, propylene glycolone monomethinoleate. It is preferable to carry out the reaction in a solution state in which the solvent is dissolved in an organic solvent such as propylene glycol / lemonomethyate / reethenolate, and methyl methylpyrrolidone.
- the compound of the formula (15) and the compound of the formula (22) can each be used alone, or two or more compounds can be used in combination.
- a quaternary ammonium salt such as benzyltriethylammonium chloride, tetrabutylammonium chloride, and tetraethylammonium bromide can also be used as a catalyst for this reaction.
- the reaction temperature and reaction time of this reaction depend on the compound used, concentration, etc. However, the reaction time is appropriately selected from the range of 0.1 to 100 hours and the reaction temperature of 20 ° C to 200 ° C. When a catalyst is used, it can be used in the range of 0.001 to 50% by mass based on the total mass of the compound used.
- composition for forming an antireflection film of the present invention containing the compound represented by the formula (1), characteristics of the antireflection film formed from the composition for forming an antireflection film, particularly irradiation light used in one lithography process
- the light absorption characteristics, extinction coefficient, refractive index, etc., of the compound greatly depend on the type of the compound of the formula (22) used in this reaction. Further, the type of the compound of the formula (22) used also affects the time required for the step of removing the antireflection film formed from the composition for forming an antireflection film of the present invention by etching. .
- the type and number of the substituents of the benzene ring, naphthalene ring or anthracene ring in the compound of the formula (22) affect the time required for the step of removing the antireflection film by etching, and include a halogen atom and a nitrogen atom.
- a hetero atom such as an oxygen atom or a sulfur atom
- the compound of the formula (22) As the compound, a compound having a naphthalene ring or an anthracene ring (M is a naphthalene ring or an anthracene ring) is preferably used. Further, when applied to a process using light having a wavelength of 193 ⁇ m (ArF excimer laser) and a wavelength of 157 nm (F2 excimer laser), a compound having a benzene ring (M is a benzene ring) is preferably used. .
- the compound of the formula (15) used in the reaction for obtaining the compound of the formula (1) includes, for example, tris- (2,3-epoxypropyl) -isocyanurate, tris-
- Examples of the compound of the formula (22) used in the reaction for obtaining the compound of the formula (1) include benzoic acid, monoethyl isophthalate, 2,4-dibromobenzoic acid, 4-methylbenzoic acid, —Methoxy benzoic acid, 2,3,5-triiodobenzoic acid, 2-chloro-4-nitrobenzoic acid, 4-fluorobenzoic acid, 4-hydroxybenzoic acid 4-benzoic acid, 4-bromobenzoic acid, 4-t-butylbenzoic acid, 3-trifluoromethylbenzoic acid, 2-nitrobenzoic acid, 4-isopropoxybenzoic acid, 3-cyanobenzoic acid, 3-phenyl Benzoic acid, 3-promo-4-monomethylbenzoic acid, 2,4,6-tribromobenzoic acid, 4-methylthiobenzoic acid, 2-bromo-4-monofluorobenzoic acid and the like can be mentioned.
- Compounds of the formula (22) include, for example, naphthalene-12-carboxylic acid, 1-bromonaphthalene-12-carboxylic acid, 4-promo-3-methoxy-1-naphthalene-12-carboxylic acid, —Methylnaphthalene-1-carboxylic acid, 4-Fluoronaphthalene-1-1 ruponic acid, 4-212-Tronaphthalene-1-1 rubonic acid, 5-Bromonaphthalene-1-1 rubonic acid, 8-Feodonaphthalene-1-carbon Acids, anthracene-19-force oleonic acid, anthracene-2-force olevonic acid, 10-promoanthracene-19-force rubonic acid, and the like.
- Examples of the compound of the formula (22) include, for example, phenol, 4-methylphenol, 4-phenylphenol, 4-bromophenol; pi-norre, 4-nitrophenol, 2,3,4,5-tetra Bromo phenol, pentabromo phenol, 4-bromo 2- phenol, phenol phenol, 2, 4, 6- tri phenol, 2, 5-dimethino phenol 4-phenol phenol Nore, 4-methinolethiophene, 3-methoxyphenone, 3-bromophenone, 2-cyanophenone, 2, 6-jodo-41-cyanophenol, 3-hydroxymethylbenzoate Ter, 2-Naphthone, 1-Bromo 2-Naphthone, 2-Nitro-1-1 Naphthol, 2-Methynole, 1-Naphthol, 4-Methoxy-11-Naphthone, Examples thereof include 2,4-dichloro-1-naphthol, 2-hydroxynaphthalene-13-methyl olenoate, 2-hydroxyanthracene
- Examples of the compound of the formula (22) include ayuline, 3-chloroaline, 2-bromoaniline, 4-odoaniline, 3-methoxyayuline, 3-methylthioaniline, 412troaniline, 3-Isopropinoreayurin, 3,5-disubstituted mourin, 2-fluoro-4-ododoaniline, 2-amino-5-odobenzoic acid methyl ester, 2,4,6-tripromoline 4-Bromo-1-me Tylaniline, 2-promo 4-troaniline, 2-promo.
- 5-trifluoromethylaniline 3-phenylaniline, 1-aminonaphthalene, 1-amino-4-bromonaphthalene, 1-amino-2-nitronaphthalene, Examples thereof include 1-aminoanthracene and 9-aminoanthracene.
- Examples of the compound of the formula (22) include, for example, thiophenol, 2-methylthiophenol, 4-chlorothiophenol, pentachlorothiophenol, 3-methoxythiophenol, and 3-methoxythiophenol.
- Examples include promothiophenol, 2-mercaptobenzoic acid methyl ester, 412-trothiophenol, 3-odothiophenol, 11-naphthalenthenol, and 9-mercaptoanthracene.
- Compounds to be reacted with the compound of the formula (8) include, in addition to the compound of the formula (15), other compounds such as, for example, thiophene-12-carboxylic acid, 5-bromothiophene-12-forcenolevon Acid, phenol, acid, 4-bromophenoxyacetic acid, benzinole alcohol, 2,4-dibromobenzinole alcohol, 3-bromocinnamic acid, 91-hydroxymethylanthracene, thiazole-2-potassic acid, 2- It is also possible to use compounds having a carboxyl group or a hydroxyl group such as amino-5-bromothiazole.
- other compounds such as, for example, thiophene-12-carboxylic acid, 5-bromothiophene-12-forcenolevon Acid, phenol, acid, 4-bromophenoxyacetic acid, benzinole alcohol, 2,4-dibromobenzinole alcohol, 3-bromocinnamic
- Examples of the compound of the formula (1) contained in the antireflection film-forming composition of the present invention include the following formula (23) (compound number 1 in Table 1 below), the following formula (24) (Table 1 below) Compound No. 15) in the above can be mentioned.
- the compound represented by the formula (1) can be used alone, or two or more kinds can be used in combination.
- the compounding amount of such a compound of the formula (1) is 10% by mass in the total solid content. / 0 or more, for example, 30% by mass to 99% by mass, for example, 50% by mass to 99% by mass, and further, for example, 60% by mass to 95% by mass.
- the triazinetrione compound having a hydroxyalkyl structure as a substituent on a nitrogen atom is represented by the formula (2) or (3) as a substituent on a nitrogen atom.
- trione polymer compounds are examples of the triazinetrione compound having a hydroxyalkyl structure as a substituent on a nitrogen atom.
- Ar represents an alkyl group having 1 to 6 carbon atoms, a phenyl group, a naphthyl group, a halogen atom, an alkoxycarbonyl group having 1 to 6 carbon atoms, a nitro group, a carboxyl group, a cyano group, and a carbon atom having 1 to 6 carbon atoms.
- a compound having a structure represented by the formula (6) can be used as the triazinetrione compound having a substituent represented by the formula (2) as a substituent on the nitrogen atom.
- Ai, A 2 and A 3 are each a hydrogen atom, a methyl group or Echiru group
- the compound of formula (6) has the formula (13)
- a 2 and A 3 each represent a hydrogen atom, a methyl group or an ethyl group
- a benzene ring or a naphthalene ring which may be substituted with an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a hydroxyl group, a thiol group, an alkylthio group having 1 to 6 carbon atoms, or an amino group. It can be obtained by reacting a compound or a naphthalene compound. In this reaction, only one compound represented by the formula (14) can be used, or two or more compounds can be used in combination.
- This reaction is carried out in the form of a solution dissolved in an organic solvent such as benzene, toluene, xylene, ethyl lactate, butyl lactate, propylene glycolone monomethinoleate, propylene glycol monomethyl ether acetate, N-methylpyrrolidone, and the like. It is preferred to do so.
- organic solvent such as benzene, toluene, xylene, ethyl lactate, butyl lactate, propylene glycolone monomethinoleate, propylene glycol monomethyl ether acetate, N-methylpyrrolidone, and the like. It is preferred to do so.
- quaternary ammonium salts such as benzyltriethylammonium chloride, tetrabutylammonium chloride, and tetraethylammonium bromide can be used as a catalyst in the present reaction.
- reaction temperature and reaction time of this reaction depend on the compound to be used, the concentration, and the like, but the reaction time is appropriately in the range of 0.1 to 100 hours and the reaction temperature of 20 ° C to 200 ° C. Selected.
- 0 0 0 1 relative to the total weight of the compounds used - it can be used in 5 0 mass range of 0/0..
- Examples of the triazinetrione compound having a substituent represented by the formula (13) on a nitrogen atom include one, two, or three nitrogen atoms having a substituent of the formula (13) on a nitrogen atom. Although there may be three cases, any of them can be used in the present reaction, and a combination thereof can also be used.
- a compound having three substituents of the formula (13), that is, a compound represented by the formula (15) is preferably used.
- a 2 and A 3 represent a hydrogen atom, a methyl group or an ethyl group, compounds in which A 2 and A 3 are hydrogen atoms, A i and A 3 are hydrogen atoms
- a compound in which A 2 is a methyl group is preferably used.
- the triazinetrione compound used in the antireflection film-forming composition of the present invention may be any one of them. This includes cases.
- all the substituents of the compound having the substituent of the formula (13) having three substituents of the formula (15) are obtained by reacting with the compound of the formula (14).
- Triazinetrione compound having a substituent represented by the formula (13) on a nitrogen atom Compounds of the formula (14) used for the reaction with
- B is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a phenyl group, a naphthyl group, a halogen atom, an alkoxycarbol group having 1 to 6 carbon atoms, a nitro group, a carboxyl group, a cyano group, and a carbon atom.
- n represents a number from 1 to 6
- m represents a number from 1 to 4
- B may be the same or different.
- a 2 and A 3 each represent a hydrogen atom, a methyl group or an ethyl group, and 1 ⁇ represents an alkyl group having 1 to 6 carbon atoms, a phenyl group or a benzyl group, R 2 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.
- the alkyl group having 1 to 6 carbon atoms include a methyl group, an ethyl group, a normal pentyl group, an isopropyl group, and a cyclohexyl group.
- the compound of the formula (7) is obtained by reacting carbon dioxide with a triazinetrione compound having a substituent represented by the formula (13) on a nitrogen atom to convert an epoxy ring part into a dioxylanone ring, It can be produced by reacting with (26).
- the reaction of converting the epoxy ring moiety into a dioxylanone ring can be carried out, for example, by reacting carbon dioxide in the presence of lithium bromide.
- the reaction of the dioxylanone ring with the amine compound formula (26) can be carried out, for example, by reacting in ⁇ , ⁇ -dimethylformamide at 70 ° C. for 48 hours.
- a triazinetrione compound having two or three nitrogen atoms having a substituent of formula (13) is used in this reaction, all the epoxy ring moieties are converted to dioxylanone rings, and then the formula (3) In some cases, only one or two of the epoxy ring moieties are converted to the substituent of the formula (3).
- the triazinetrione compound used for the above includes any of the above cases.
- Examples of the triazinetrione compound having a substituent represented by the formula (13) on a nitrogen atom include a compound having three substituents of the formula (13) and a compound of the formula (15). It is preferably used.
- all epoxy ring moieties of the compound formula (15) having three substituents of the formula (13) are converted into the substituents of the formula (3).
- compounds are preferably used, compounds represented by the formula (2 7) is preferably used (in the formula (2 7), ⁇ Pi 1 2 are as defined above).
- the compound of the formula (26) used for the reaction with the triazinetrione compound having a substituent represented by the formula (13) on a nitrogen atom includes, for example, methylamine, ethylamine, isopropylamine, normal Examples thereof include butylamine, cyclohexylamine, aniline, benzylamine, dimethylamine, getylamine, diisopropylamine, dibenzylamine, and diphenylamine.
- only one compound of the formula (6) can be used, or two or more compounds can be used in combination.
- the compound represented by the formula (27) can be used alone, or two or more kinds can be used in combination.
- the compounding amount of such a compound of the formula (27) is 10% by mass or more in the total solid content, for example, 30% by mass to 99% by mass, for example, 50% by mass to 99% by mass. %, For example, 60% to 95% by mass.
- the properties of the antireflection film formed from the composition for forming an antireflection film, and particularly to the irradiation light used in the lithography process The light absorption characteristics, extinction coefficient, refractive index, etc. also depend on the type of the compound of the formula (26) used in this reaction.
- a triazinetrione oligomer compound or a triazinetrione polymer compound having a structure represented by the formula (8) can be used as the polymer compound.
- a 2 and A 3 each represent a hydrogen atom, a methyl group or an ethyl group
- Ar represents an alkyl group having 1 to 6 carbon atoms.
- the molecular weight of the triazinetrione oligomer compound or the triazinetrione polymer compound having the structure represented by the formula (8) in the antireflection film-forming composition of the present invention is not particularly limited, but may be expressed as a weight average molecular weight. For example, 700 to 200000, for example, 1000 to 50000.
- the triazinetrione oligomer compound and the triazinetrione polymer compound having a structure represented by the formula (8) have two or three nitrogen atoms having a substituent represented by the formula (13) on a nitrogen atom. It can be obtained by reacting a triazinetrione compound with an aromatic compound represented by the above formula (14). In this reaction, only one compound represented by the formula (14) can be used, or two or more compounds can be used in combination.
- This reaction is preferably performed in a solution state dissolved in an organic solvent such as benzene, toluene, xylene, ethyl lactate, butyl lactate, propylene glycol monomethyl ether acetate, propylene glycol monomethyl ether acetate, and N-methylpyrrolidone.
- organic solvent such as benzene, toluene, xylene, ethyl lactate, butyl lactate, propylene glycol monomethyl ether acetate, propylene glycol monomethyl ether acetate, and N-methylpyrrolidone.
- quaternary ammonium salts such as benzyltriethylammonium chloride, tetrabutylammonium chloride, and tetraethylammonium bromide can be used as a catalyst for this reaction.
- reaction temperature and reaction time of this reaction depend on the compound used, the concentration and the like, but are appropriately selected from the ranges of 0.1 to 100 hours and 20 ° C to 200 ° C. Place where catalyst is used In this case, it can be used in the range of 0.001 to 50% by mass based on the total mass of the compound used.
- a triazinetrione compound having two or three nitrogen atoms having a substituent represented by the formula (13) on a nitrogen atom can be used alone, or a combination thereof can be used. Can also be.
- a compound having three substituents of the formula (13), that is, a compound represented by the formula (15) is preferably used.
- the compound of the above formula (15), which is a compound having three substituents of the formula (13), is preferably used, and particularly the compound of the formula (28) (Wherein A 4 represents a hydrogen atom or a methyl group).
- the triazinetrione oligomer compound having the structure represented by the formula (8) and the compound of the formula (14) used for producing the triazinetrione polymer compound include compounds represented by the above formulas (16) to (21). And a compound having a benzene ring. One of these compounds can be used alone, or two or more compounds can be used in combination.
- the antireflection coating composition of the present invention is obtained by reacting a triazinetrione compound having a substituent represented by the formula (13) on a nitrogen atom with a phenyl compound or a naphthalene compound represented by the formula (14). It contains the obtained triazinetrione compound, triazinetrione oligomer compound, and triazinetrione polymer compound.
- the antireflection coating composition of the present invention includes any of a composition containing only such a triazinetrione compound, a composition containing only a triazinetrione oligomer compound, and a composition containing only a triazinetrione polymer compound.
- a composition comprising a mixture of such a triazinetrione compound and a triazinetrione oligomer compound; a composition comprising such a mixture of a triazinetrione compound and a triazinetrione polymer compound; A composition comprising a mixture of a triazinetrione oligomeric compound and a triazinetrione polymer compound; and a composition comprising such a triazinetrione compound, a triazinetrione oligomeric compound and a mixture of triazinetrione polymer compounds. so is there.
- the properties of the anti-reflection film formed from the composition in particular, the absorption characteristics, extinction coefficient, refractive index, etc. with respect to the irradiation light used in the lithography process are determined by this reaction. It largely depends on the kind of the compound of the formula (14) used in the above.
- the type of the compound of the formula (14) used also affects the time required for the step of removing the antireflection film formed from the antireflection film-forming yarn of the present invention by etching. Things.
- the type and number of substituents of the benzene ring and naphthalene ring in the compound of the formula (14) are Affects the time required for the removal step, and removes by etching by introducing or increasing the number of heteroatoms such as halogen atoms, nitrogen atoms, oxygen atoms, and sulfur atoms. The time required for the process can be reduced.
- the compound of formula (14) is represented by formulas (16) to (18).
- a compound having a naphthalene ring represented by the formula is preferably used.
- the equations (19) to (21) are used.
- a compound having a benzene ring is preferably used.
- Examples of such a compound having a naphthalene ring include 3-hydroxynaphthalene-12-hydroxycarboxylic acid, naphthalene-1,2,6-dicarboxylic acid, naphthalene-1,2,3-dicarboxylic, 1,6-dibromo-12- Hydroxynaphthalene 3-force Nolevonic acid, 6-Hydroxynaphthalene 1-2 Canoleponic acid, 3,7-Dihydroxynaphthalene-1 2-Power nolevonic acid, 4-Hydroxy-1-1-pheninolenaphthalene-1 2 One-strength norevonic acid, 6-hydroxynaphthalene 2 _thinnolevonic acid, 4-1-promonaphthalene 1,8-dicanolevonic acid, 2-hydroxynaphthalene-one 1-strength norebonic acid, 4 one-promonaphthalene 1 1 1,4-dicanolevonic acid, 1,5-dihydroxynaphthalene, 2,
- Examples of such a compound having a benzene ring include 3-hydroxybenzoic acid, 3,5-dihydroxybenzoic acid, 2-amino-3-hydroxybenzoic acid, and 2,5-dichloro-1-hydroxy-6- Methoxy benzoic acid, 2,4,6-triode-3-hydroxy benzoic acid, 2,4,6-tripromo-3-hydroxy benzoic acid, 2-bromo-4,6-dimethyl-3-hydroxy Benzoic acid, 2-Fluoro 5-hydroxybenzoic acid, 3-Methoxy-14-Hydroxybenzoic acid, 3,5-Dibromo-14-hydroxybenzoic acid, 2,4-Dihydroxy-5-bromobenzoic acid, 3-Edro 5—Nitro 4—Hydroxybenzoic acid, 2-Hydroxybenzoic acid, 4-Chloro-2-Hydroxybenzoic acid, 3, 5—Jordo 2—Hydroxy Dibenzoic acid, 3-methoxy-2-hydroxybenz
- a triazine trione oligomer compound having a structure represented by the formula (9) and a triazine trione polymer compound can be used.
- Al 2 and 3 each represent a hydrogen atom, a methyl group or an ethyl group
- Q represents an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms
- Ar or 1 CH 2 one Ar- CH 2 - represents, an alkyl group having 1 to 6 carbon atoms, represents a phenyl group or a base Njiru group
- R 2 represents a hydrogen atom, an alkyl group of from 1 to 6 carbon atoms, phenyl group or benzyl group Represents
- the molecular weight of the triazinetrione oligomer compound and the triazinetrione polymer compound having the structure represented by the formula (9) in the antireflection film-forming composition of the present invention is not particularly limited. For example, 700-200000, for example, 1000-50000.
- the triazinetrione oligomer compound having a structure represented by the formula (9) and the triazine azinetrione polymer compound are prepared by reacting carbon dioxide with a triazinetrione compound having a substituent represented by the formula (13) on a nitrogen atom. Then, the epoxy ring moiety is converted into a dioxylanone ring, followed by reacting with an amine compound of formula (29).
- the reaction of the dioxylanone ring with the amine compound formula (29) can be performed, for example, by reacting at 70 ° C. for 48 hours in an N, N-dimethylformamide solvent. In this reaction, only one compound represented by the formula (29) can be used, or two or more compounds can be used in combination. In this reaction, a triazinetrione compound having two or three nitrogen atoms having a substituent represented by the formula (13) on a nitrogen atom can be used alone, or a combination thereof can be used. You can do it. A compound having three substituents of the formula (13), that is, a compound represented by the formula (15) is preferably used.
- one or two substitution groups of the formula (13) in the triazine compound as a raw material for the production are linked to the formula (5). It is conceivable that it is involved in the formation of a group, that is, in the formation of an oligomer structure or a polymer structure, and the remaining substituent of the formula (13) is unreacted or involved in the formation of the substituent of the formula (3). It is conceivable that all (that is, two or three) substituents of the formula (13) are involved in the formation of the linking group of the formula (5), that is, the formation of an oligomer structure or a polymer structure.
- the compound of the above formula 15 which is a compound having three substituents of the formula (13), is preferably used, and in particular, the compound of the above formula (28) Is preferably used.
- Examples of the compound of the formula (29) used for producing a triazinetrione oligomer compound having a structure represented by the formula (9) and a triazinetrione polymer compound include ethylenediamine, propylenediamine, and phenylenediamine. , 2-Hydroxy_1,3-Propylenediamine, 1,4-Cyclohexyldiamine, Xylenediamine, 2,6-Dichloromouth phenylenediamine, 1,4-Diaminonaphthalene, 1,5-Diaminonaphthalene, etc. Can be mentioned. These compounds may be used alone, or two or more compounds may be used in combination.
- the properties of the antireflection film formed from the composition depend on the type of the compound of the formula (29) used in this reaction.
- the type of the compound of the formula (29) used also affects the time required for the step of removing the antireflection film formed from the antireflection film forming composition of the present invention by etching. is there.
- the antireflection coating composition of the present invention is irradiated with light having a wavelength of 248 nm (KrF excimer laser).
- the compound of the formula (29) includes a naphrene ring such as 1,4-diaminonaphthalene, 1,5-diaminonaphthalene, or 2,3-diaminonaphthalene. Are preferably used.
- phenylenediamine, xylenediamine, 2,6-dichloromethane Compounds having a benzene ring, such as elenenediamine, 3,5-dibromo-l, 2-phenylenediamine, 3,4,5,6-tetralod-l, 2-phenylenediamine, are preferably used.
- the substituent of the formula (2) is a substituent of the formulas (30) to (37).
- the linking group of the formula (5) is, for example, a linking group of the formulas (54) to (55).
- the triazinetrione compound having a hydroxyalkyl structure as a substituent on the nitrogen atom may be a compound represented by the formula (10) and a compound represented by the formula (11) or the formula (11).
- the reaction product with the compound represented by 12) can be mentioned.
- R 3 represents an alkyl group having 1 to 6 carbon atoms, an alkenyl group, phenyl group, benzyl group or 2,3 epoxypropyl group having 3 to 6 carbon atoms
- R 4 and R 5 represent alkyl groups having 1 to 6 carbon atoms.
- R 6 represents an alkenyl group, a phenyl group or a benzyl group having 3 to 6 carbon atoms
- R 6 represents an alkyl group having 1 to 6 carbon atoms, a phenyl group, a benzyl group or 1 (CH 2 ) nCOOH
- n represents 1 , 2 or 3
- the alkyl group having 1 to 6 carbon atoms include a methyl group, an ethyl group, and a normal pen. Examples include a tyl group, an isopropyl group, and a cyclohexyl group.
- Examples of the alkenyl group having 3 to 6 carbon atoms include an aryl group, a 2-butenyl group, a 3-butenyl group and a 2-pentyl group.
- the compounds of the formulas (10) and (11) can be reacted, for example, in a solvent such as cyclohexanone or propylene glycol monomethyl ether with benzyltriethylammonium bromide as a catalyst under heating to reflux.
- a solvent such as cyclohexanone or propylene glycol monomethyl ether with benzyltriethylammonium bromide as a catalyst under heating to reflux.
- the reaction product has the formula
- a compound comprising the structural unit represented by (56) is provided.
- R 3 is a 2,3-epoxypropyl group in the formula (10)
- all three epoxy ring moieties can react with the compound of the formula (11). Can be provided.
- the number of the structural units of the formulas (56) and (57) contained in the reaction product varies depending on the reaction conditions.
- Reaction Production Used in Antireflective Film Forming Composition of the Present Invention As the compound, an oligomer compound or a high molecular weight compound containing a structural unit of the formula (56) of 1 to 10,000 and having a molecular weight of 400 to 1,000,000 as a weight average molecular weight is preferably used. Further, an oligomer compound or a polymer compound containing 1 to 10,000 of the structural unit of the formula (57) and having a molecular weight of 400 to 1,000,000 as a weight average molecular weight is preferably used.
- Equation (58) A compound having a structural unit represented by the following formula: Equation (58)
- the number of structural units in equation (59) contained in the reaction product varies depending on the reaction conditions.
- the reaction product used in the antireflection film-forming composition of the present invention includes an oligomer compound having a structural unit of the formula (58) of 1 to 10,000 and a molecular weight of 400 to 1,000,000 as a weight average molecular weight. High molecular compounds are preferably used. Further, an oligomer compound or a polymer compound containing 1 to 10,000 of the structural unit of the formula (59) and having a molecular weight of 400 to 1,000,000 as a weight average molecular weight is preferably used.
- a reaction product containing the structural unit of the formula (56) and a reaction product containing the structural unit of the formula (58) can be used in combination.
- Examples of the compound of the formula (10) used for producing the reaction product include, for example, monoaryldiglycidyl isocyanuric acid, monomethyldiglycidyl isocyanuric acid, Examples thereof include noethyldiglycidylisocyanuric acid, monobutyldiglycidylisocyanuric acid, monopheninolesiglycidinoleisocyanuric acid, and monopentinolegiglycidinoleisocyanuric acid.
- Examples of the compound of the formula (11) include monoallyl isocyanuric acid, monomethyl isocyanuric acid, monoethyl isocyanuric acid, monobutyl isocyanuric acid, monophenyl isocyanuric acid, and monobenzyl isocyanuric acid. Nuric acid.
- Examples of the compound of the formula (12) include, for example, dimethylmonocarboxyethyl isocyanuric acid, getyl monocarboxyethyl isocyanuric acid, diaryl carboxyshethyl isocyanuric acid, and dibutyl monocarboxyethyl isocyanurate.
- Examples include nullic acid, diphenylmonocarboxyethyl isocyanuric acid, and dibenzylmonocarboxyethyl isocyanuric acid.
- the antireflection film-forming composition of the present invention is preferably crosslinked by heating after coating from the viewpoint of preventing intermixing with a photoresist to be overcoated.
- the antireflection film-forming composition of the present invention further comprises a crosslinking agent component.
- a crosslinking agent component include a melamine-based compound or a substituted urea-based compound having a cross-linking substituent such as a methylol group or a methoxymethyl group, and a polymer compound containing an epoxy group.
- a crosslinker having at least two crosslinkable substituents a compound such as methoxymethylated glycodyl or methoxymethylated melamine, preferably tetramethoxymethyldalicholperil or hexamethyxoxymethyl melamine .
- compounds such as tetramethoxymethyl urea and tetrabutoxymethyl urea can also be mentioned.
- the amount of the cross-linking agent varies depending on the coating solvent used, the base substrate used, the required solution viscosity, the required film shape, etc., but is 0.001 to 20% by mass in all the compositions. It is preferably in the range of 0.01 to 15% by mass, more preferably 0.05 to 10% by mass.
- crosslinking agents may cause a crosslinking reaction by self-condensation, triazinetrione compounds having a hydroxyalkyl structure as a substituent on the nitrogen atom contained in the antireflection film-forming composition of the present invention
- a cross-linking reaction can also occur with the hydroxyl groups in (2), (3), (4), (5), (56), (57), (58), and (59).
- a catalyst for accelerating the crosslinking reaction p-toluenesulfonic acid, trifluoromethanesulfonic acid, pyridinum-p-toluenesulfonic acid, salicylic acid, sulfosalicylic acid, cunic acid, benzoic acid, hydroxybenzoic acid
- an acidic compound such as, for example, or a thermal acid generator such as 2,4,4,6-tetrabromocyclohexadienone, benzoin tosylate and 2-nitrobenzyl tosylate.
- the compounding amount is, for example, 0.02 to 10% by mass, and for example, 0.04 to 5% by mass in the total solid content.
- a resin having at least one cross-linking substituent selected from a hydroxyl group, a carboxyl group, an amino group and a thiol group can be further added to the antireflection film-forming composition of the present invention.
- characteristics such as a refractive index, an attenuation coefficient, and an etching rate of an antireflection film formed from the antireflection film forming composition of the present invention can be adjusted.
- Such resins include 2-hydroxyethylenoacrylate, 2-hydroxypropinoleate tallate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, Vier alcohol, 2-hydroxyethyl
- the resin include butyl ether, acrylic acid, methacrylic acid, and the like as one of the structural units.
- the weight average molecular weight of such a resin may be 500 to 1,000,000, preferably 500 to 500,000, and 1000 to: L00000.
- the content of such a resin in the antireflection film-forming composition of the present invention is at most 20% by mass, preferably at most 15% by mass, based on the total solid content.
- Such a resin examples include poly 2-hydroxyethyl methacrylate, polybutyl alcohol, polyataryl acid, a copolymer of 2-hydroxypropyl acrylate and methinole methacrylate, and 2-hydroxypropynoleacrylate and Copolymer of isopropyl methacrylate, copolymer of 2-hydroxypropynole methacrylate and 2,2,2-trichloroethynole methacrylate, copolymer of 2-hydroxypropyl methacrylate and 2,2,2-trifluoroethyl Methacrylate copolymer, 2-hydroxypropynolemethacrylate and 2-chloroethynolemetha Copolymers of acrylates, copolymers of 2-hydroxypropyl methacrylate and cyclohexinole methacrylate, copolymers of 2-hydroxypropynole methacrylate and nonolemanoleoctynole methacrylate, 2-hydroxypropynole
- the antireflection film-forming composition of the present invention may contain a photoacid generator in order to match the acidity of the photoresist coated on the upper layer in the lithography step.
- a photoacid generator in order to match the acidity of the photoresist coated on the upper layer in the lithography step.
- Preferable photoacid generators include, for example, onium salt photoacid generators such as bis (4-t-butylphenyl) iodine trifluoromethanesulfonate, triphenylsulfoium trifluoromethanesulfonate, and phenyl bis (tric acid).
- Halogen-containing compound-based photoacid generators such as s -triazine and sulfonic acid-based photoacid generators such as benzointosylate and N-hydroxysuccinimide trifluoromethanesulfonate.
- Can be The amount of the photoacid generator is 0.02 to 3% by mass, preferably 0.04 to 2% by mass, based on the total solid content.
- a light-absorbing compound and a light-absorbing resin can be further added to the antireflection film-forming composition of the present invention.
- a light-absorbing compound or a light-absorbing resin By adding a light-absorbing compound or a light-absorbing resin, it is possible to adjust properties such as a refractive index, an attenuation coefficient, and an etching rate of an antireflection film formed from the antireflection film-forming composition of the present invention. .
- Such light-absorbing compounds and light-absorbing resins have high absorptivity to light in the photosensitive characteristic wavelength region of the photosensitive component in the photoresist layer provided on the antireflection film, and reflect light from the substrate. Any material can be used as long as it can prevent standing waves generated by the above and irregular reflection due to steps on the substrate surface.
- the weight-average molecular weight of the light-absorbing resin used is 500 to 100 0000, preferably 50,000 to 50,000, and 100: to L0000.
- the compounding amount of the light-absorbing compound and the light-absorbing resin in the antireflection film-forming composition of the present invention is 0.01% by mass or more in the total solid content, and is 1% by mass to 90% by mass. % By mass to 50% by mass, and for example, 5% by mass to 40% by mass.
- a fuel compound for example, a benzophenone compound, a benzotriazole compound, an azo compound, a naphthalene compound, an anthracene compound, an anthraquinone compound, a triazine compound, a triazine trione compound, a quinoline compound, and the like can be used.
- Phenyl compounds, naphthalene compounds, anthracene compounds, triazine compounds, and triazinetrione compounds are preferably used.
- a phenyl compound having at least one hydroxyl group, amino group or carboxyl group, a naphthalene compound having one hydroxyl group, amino group or carboxyl group, and an anthracene compound having at least one hydroxyl group, amino group or carboxyl group are preferably used. Is done. .
- Phenyl compounds having at least one hydroxyl group, amino group or hepoxyl group include phenolic, bromophenolic, 4,4, snorrefoninolesphenol, tert-butylphenol, biphenol, benzoic acid, salicylic acid. , Hydroxyisophthalic acid, phenylacetic acid, aniline, benzylamine, benzyl alcohol, cinnamyl alcohol, phenylalanine, phenoxyprono, Knol, and the like.
- naphthalene compound having at least one hydroxyl group, amino group, or carboxyl group examples include: 1-naphthalenecarboxylic acid, 2-naphthalenecarboxylic acid, 1-naphthol, 2-naphthol, 1-aminonaphthalene, naphthylacetic acid, 2-hydroxynaphthalene canoleponic acid, 3-hydroxy-2-naphthalene phenolic acid, 3,7-dihydroxy-1-naphthalene phenolic acid, 6-promo 2-hydroxynaphthalene, 2, ⁇ 6 — Naphthalenedicarboxylic acid and the like.
- anthracene compound having at least one hydroxyl group, amino group, or carboxyl group examples include 91-anthracenecarboxylic acid, 9-hydroxymethylanthracene, 1-aminoanthracene, and the like.
- the light absorbing resin examples include, for example, an aromatic ring structure such as a benzene ring, a naphthalene ring, and an anthracene ring, a pyridine ring, a quinoline ring, a thiophene ring, a thiazole ring, a triazine ring, and an oxazole ring.
- an aromatic ring structure such as a benzene ring, a naphthalene ring, and an anthracene ring
- a pyridine ring such as a benzene ring, a naphthalene ring, and an anthracene ring
- a pyridine ring such as a benzene ring, a naphthalene ring, and an anthracene ring
- a pyridine ring such as a benzene ring, a naphthalene ring, and an an
- a resin having at least one aromatic ring structure selected from a benzene ring, a naphthalene ring and an anthracene ring in the repeating structural unit can be used.
- the resin having a benzene ring examples include novolak resin, halogenated novolak resin, polystyrene, polyhydroxystyrene, and the like. Further, mention may also be made of the term containing benzyl phthalate, benzyl methacrylate, styrene, hydroxystyrene or the like as a constituent unit. Examples of such fats include copolymers of benzyl methacrylate and 2-hydroxypropynolemethacrylate; styrene and 2-hydroxylsheth; copolymers of remethacrylate; copolymers of hydroxystyrene and ethynolemethacrylate; and penzinolemethacrylate.
- melamine compounds (trade name Cymel 303) and benzoguanamine compounds (trade name Cymel 111) described in U.S. Pat. Mention may also be made of the manufactured fat.
- Examples of the resin having a naphthalene ring and an anthracene ring include resins containing the following structural units ((a) to (g)).
- composition for forming an anti-reflection film of the present invention may further contain, if necessary, other additives such as a rheology modifier, an adhesion trapping agent, a surfactant and the like. .
- the purpose of the rheology modifier is mainly to improve the flowability of the antireflection film-forming composition, and particularly to enhance the filling properties of the antireflection film-forming composition into the hole during the baking process. Is added. Specific examples include phthalic acid derivatives such as dimethyl phthalate, getyl phthalate, diisobutyl phthalate, dihexynolephthalate, and butyl isodecinolephthalate, dinormal butyl adipate, disoptyl adipate, and diisooctyl adipate.
- Adipic acid derivatives such as octyldecyl adipate, maleic acid derivatives such as dinonolemanoleptylmalate, ethinolemalate, dinoninolemalate, and oleic acid derivatives such as methylolate, butylolate, and tetrahydrofurfurylolate; Or stearic acid derivatives such as normal butyl stearate and glyceryl stearate. These rheology modifiers are usually added in a proportion of less than 3 0 mass 0/0 in the total composition of lithography for forming an antireflective film composition.
- the adhesion aid is added mainly for the purpose of improving the adhesion between the substrate or the photoresist and the composition for forming an anti-reflection film, and particularly preventing the photoresist from peeling off during development.
- Specific examples include chlorosilanes such as trimethylchlorosilane, dimethylvinylenochlorosilane, meth / resiphenylenolechlorosilane, chloromethinoresmethinolechlorosilane, trimethylmethoxysilane, dimethyljetoxysilane, methinoresimeethoxysilane, dimethyl / levininooleethoxysilane, Alkoxysilanes such as dipheninoresistoxysilane and phenyltriethoxysilane, hexamethyldisilazane, silazane such as N, ⁇ '-bis (trimethylsilyl) perrea, dimethyltrimethylsilylamine, trimethylsilylimi
- composition for forming an anti-reflection film of the present invention is free from the occurrence of pinhole striation and the like.
- a surfactant can be added.
- the surfactant include polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, polyoxyethylene cetyl ether, polyoxyethylene alkyl ethers such as polyoxyethylene oleyl ether, and polyoxyethylene octyl phenol.
- Polyoxyethylene alkylaryl ethers such as ethers, polyoxyethylene nonylphenol ethers, polyoxyethylene polyoxypropylene block copolymers, sonolebitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sozolevitan monooleate, Sorbitan fatty acid esters such as sorbitan trioleate and sonorebitan tristearate, polyoxyethylene sorbitan monolate, poly Oxyethylene sorbitan monopalmitate, polyoxyethylene Surfactants such as polyoxyethylene sorbitan trioleate and polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan tristearate, EF TOP EF 301, EF 303, EF 352 (Tochem Corporation) Products), MegaFac F 171, F 173 (Dainippon Ink Co., Ltd.), Florard FC 430, FC 431 (Sumitomo Sleam Co., Ltd.), Asahigard AG 710,
- ethylene glycol monomethynooleate ethylene glycolone monoethynoateate, methinoreserosonorebeacetate, etinoreserosonorebeacetate, diethyleneglyconelenomethate Noelle tenore
- Jetylene glycolone monoethinooleate Propylene glycolone, Propyrene recone monomethineoleate, Propylene darycone monomethineoleate acetate, Propylene glycol propyl ether acetate, Toluene, Xylene, Methynorethynoleketone, Cyclopentanone, Cyclohexanone, 2-Hydroxypropionate, 2-Hydroxy-1-Ethylmethylpropionate, Ethoxyacetate, Ethylhydroxyacetate, 2-Hydroxy Methyl 3-methylbutanoate, Methylene, Methynorethynoleketone,
- high boiling solvents such as propylene glycol monobutyl ether and propylene glycol monobutyl ether acetate can be mixed and used.
- solvents propylene dalicol monomethyl ether, propylene dali cornole monomethinoleate enoleacetate, ethinole lactate, petinole lactate, and cyclohexanone are preferred for improving the leveling property.
- either a negative type or a positive type can be used.
- Chemically amplified resist composed of a binder having a group that increases the alkali dissolution rate by decomposing with a photoacid generator and acid, and increases the dissolution rate of the resist by decomposing with an alkali-soluble binder, a photoacid generator and an acid
- Chemically amplified resists composed of low molecular compounds to be dissolved, binders having groups that decompose with a photoacid generator and an acid to increase the alkali dissolution rate, and low molecular compounds that decompose with an acid to increase the alkali dissolution rate of the resist
- Chemical amplification type resists such as, for example, APEX-E manufactured by Shipley Co., Ltd.
- Examples of a developer for a positive photoresist having an antireflection film formed using the antireflection film forming composition for lithography of the present invention include sodium hydroxide, potassium hydroxide, sodium carbonate, sodium silicate, and metasilicate.
- Inorganic alkalis such as sodium and ammonia water, primary amines such as ethylamine and n-propylamine , Tertiary amines such as triethylamine and methylethylamine, alcoholamines such as dimethylethanolamine and triethanolamine, and tetramethylammonium.
- an aqueous solution of an alkali such as a quaternary ammonium salt such as dimethyl hydroxide, tetraethylammonium hydroxide, or choline, a cyclic amine such as pyrrole or piperidine, or the like can be used.
- an appropriate amount of an alcohol such as isopropyl alcohol or a surfactant such as Noun may be added to an aqueous solution of the above alkalis.
- preferred developers are quaternary ammonium salts, more preferably tetramethylammonium hydroxide and choline.
- a substrate used for manufacturing a precision integrated circuit device eg, a silicon Z silicon dioxide coated substrate, a silicon nitride substrate, a glass substrate, an ⁇ substrate, etc.
- An anti-reflective coating is formed by applying an anti-reflective coating forming composition by a suitable coating method such as a spinner or a coater, and then baking (beta) to cure the composition.
- a suitable coating method such as a spinner or a coater
- the conditions for baking after application are, for example, 0.5 to 120 minutes at 80 to 250 ° C, and 0.5 to 10 minutes at 150 to 250, for example.
- a good photoresist pattern can be obtained by applying a photoresist, exposing through a predetermined mask, developing, rinsing and drying. If necessary, post-exposure heating (PEB) can be performed. Then, the anti-reflection film in the portion where the photoresist has been developed and removed in the above step is removed by dry etching, so that a desired pattern can be formed on the substrate.
- PEB post-exposure heating
- the antireflection film formed from the composition for forming an antireflection film containing a trione polymer compound has a property of efficiently absorbing irradiation light having a wavelength of 248 nm, a wavelength of 193 nm, or a wavelength of 157 nm.
- the triazinetrione compound having a hydroxyalkyl structure as the substituent on the nitrogen atom the triazinetrione oligomer compound having a hydroxyalkyl structure as the substituent on the nitrogen atom, or the hydroxyalkyl as the substituent on the nitrogen atom of the present invention.
- the anti-reflective coating made from the anti-reflective coating forming composition containing the triazine trione polymer compound having a structure contains a triazine trione ring, which is a structure containing a large number of heteroatoms (nitrogen and oxygen atoms).
- the extinction coefficient k of the antireflection film formed from the antireflection film-forming composition of the present invention is 0.40 to 0.65 for light having a wavelength of 248 nm, or 0.40 to 0.40. 0.60, or 0.45 to 0.65. For light having a wavelength of 193 nm, it is 0.20 to 0.60, or 0.25 to 0.60. For light having a wavelength of 157 nm, it is 0.20 to 0.50, or 0.30 to 0.45, or 0.30 to 0.40.
- the antireflection film formed from the composition for forming an antireflection film of the present invention has a function of preventing reflected light depending on the process conditions, further prevents the interaction between the substrate and the photoresist, and is used for the photoresist.
- Tris-1 (2,3-epoxypropyl) -1-isocyanurate (Nissan Chemical Industries, Ltd.) 5.0 g, 6-hydroxy-12-naphthalenecarboxylic acid, 4.8 g, and 0.02 g of benzyltriethylammonium chloride in 39 g of propylene glycol monomethyl ether. After dissolving 130. The mixture was reacted with C for 24 hours to obtain a solution of the oligomer compound. GPC analysis of the obtained oligomer compound showed a weight average molecular weight of 3,400 in terms of standard polystyrene.
- the oligomer compound obtained by this synthesis example includes a triazine trione compound having a substituent formula (35) and an oligomer compound having a triazine tritone ring linked by a linking group formula (52). It is estimated to be.
- Tris- (2,3-epoxypropyl) -isocyanurate (manufactured by Nissan Chemical Industries, Ltd., trade name: TEP IC) 4.0 g, 6-hydroxy-12-naphthalenecarboxylic acid 6.1 g, and benzyltrie
- TEP IC Tris- (2,3-epoxypropyl) -isocyanurate
- 6-hydroxy-12-naphthalenecarboxylic acid 6.1 g 6-hydroxy-12-naphthalenecarboxylic acid 6.1 g
- benzyltrie After dissolving 0.02 g of tilammonium chloride in 42 g of propylene glycol monomethyl ether, the mixture was reacted at 130 ° C. for 24 hours to obtain a solution of an oligomer compound.
- GPC analysis of the obtained oligomer compound showed a weight average molecular weight of 1700 in terms of standard polystyrene. It is presumed that the oligomer compounds
- Tris- (2,3-epoxypropyl) -isocyanurate (manufactured by Nissan Chemical Industries, Ltd., trade name: TEP IC) 4.0 g, 6.2-hydroxy-6-hydroxynaphthalenecarboxylic acid 7.2 g, and benzyl
- TEP IC Triethylammonium chloride
- the mixture was reacted at 130 ° C. for 24 hours to obtain a solution of an oligomer compound.
- GPC analysis of the obtained oligomer compound showed that the weight-average molecular weight was 1200 in terms of standard polystyrene.
- the oligomeric compounds obtained in this synthesis example include a triazinetrione compound having the substituent formula (35) and an oligomer compound having a triazinetrione ring linked by the linking formula (52). Is done.
- Synthesis example 4 Tris- (2,3-epoxypropyl) monoisocyanurate (manufactured by Nissan Chemical Industries, Ltd., trade name: TEP IC) 1.7 g, 6-hydroxy-2-naphthalenecarboxylic acid 3.4 g, and benzinoletreetino After dissolving 0.09 g of reammonium chloride in 20 g of propylene glycol monomethyl ether, the mixture was reacted at 130 ° C. for 24 hours to obtain a solution of an oligomer compound. GPC analysis of the obtained oligomer compound showed that the weight average molecular weight was 1200 in terms of standard polystyrene. It is presumed that the oligomer compounds obtained in this synthesis example include a triazinetrione compound having the substituent formula (35) and an oligomer compound having a triazinetrione ring linked by the linking formula (52). You.
- the oligomer compounds obtained by the present synthesis examples include triazinetrione compounds having the substituent formula (30) and oligomer compounds having triazinetrione rings linked by the linking group formula (45). Presumed.
- Tris-1 (2,3-epoxypropyl) isocyanurate (manufactured by Nissan Chemical Industry Co., Ltd., trade name: TEP IC) 2.0 g, 3,5-Jodo 2 -hydroxybenzoic acid 6.70 g, benzinoletrie 0.115 g of Tinoleammonium chloride was dissolved in 35.25 g of propylene glycol methyl ether, and the mixture was purged with nitrogen and reacted at 125 ° C. for 24 hours to obtain a solution of an oligomer compound. GPC analysis of the obtained oligomer compound showed a weight average molecular weight of 2,000 in terms of standard polystyrene.
- the oligomer compounds obtained in this synthesis example include a triazinetrione compound having the substituent formula (32) and an oligomer compound having a triazinetrione ring linked by the linking group formula (46). You.
- reaction solution After dissolving 2.0 g of monoallyl diglycidyl isocyanuric acid and 1.2 g of monoallyl isocyanuric acid in 13.2 g of cyclohexanone, the reaction solution was heated to 120 ° C and reacted simultaneously. Nitrogen was passed through the liquid. Thereafter, 0.08 g of benzyltriethyl ammonium chloride was added as a catalyst, and the mixture was stirred for 21 hours under a nitrogen atmosphere. The obtained reaction product was subjected to a GPC analysis and was found to have a weight average molecular weight, converted into that of standard polystyrene, of 5,800.
- reaction product obtained by the present synthesis example includes a compound having the structural unit of the formula (62).
- reaction product obtained by the present synthesis example includes a compound having the structural unit of the formula (64).
- Tris- (2,3-epoxypropyl) monoisocyanurate (manufactured by Nissan Chemical Industries, Ltd., trade name: TEP IC) 0.50 g and monocarboxypropyl dimethyl isocyanate
- TEP IC monocarboxypropyl dimethyl isocyanate
- the reaction solution was heated to 120 ° C., and nitrogen was simultaneously passed through the reaction solution.
- 0.03 g of benzyl triethylammonium chloride was added as a catalyst, and the mixture was stirred under a nitrogen atmosphere for 20 hours to obtain a solution containing a reaction product represented by the formula (65).
- Tris- (2,3-epoxypropyl) monoisocyanurate (manufactured by Nissan Chemical Industries, Ltd., trade name: TEP IC) 1.8 g and monocarboxymethyl dimethyl isocyanurate 4.0 g were converted to cyclohexanone 23.8 g, the reaction solution was heated to 120 ° C, and nitrogen was simultaneously flowed into the reaction solution. Thereafter, 0.1 g of benzyltriethylammonium chloride was added as a catalyst, and the mixture was stirred under a nitrogen atmosphere for 20 hours to obtain a solution containing a reaction product represented by the formula (66).
- cresol nopolak resin (a product of Asahi Ciba Co., Ltd., trade name ECN 1299, weight average molecular weight 3900) was added to 80 g of propylene daricol monomethyl ether, and dissolved by mixing. To this solution was added 9.7 g of 91-anthracenecarboxylic acid and 0.26 g of benzyltriethylammonium chloride. The reaction was carried out for 24 hours at C to obtain a resin compound of the formula (67). GPC analysis of the obtained resin compound showed a weight average molecular weight of 5,600 in terms of standard polystyrene.
- Synthesis Example 15 Tris- (2,3-epoxypropyl) monoisocyanurate (manufactured by Nissan Chemical Industries, Ltd., trade name: TEP IC) 6.8 g, 3,7-dihydroxy-2-naphthalenecarbonic acid 12.9 g, and benzene After dissolving 0.37 g of diltyrethylammonium chloride in 80 g of cyclohexanone, the mixture was reacted at 130 ° C. for 24 hours to obtain a solution of one oligomer. GPC analysis of the obtained oligomer compound showed a weight average molecular weight of 1,400 in terms of standard polystyrene.
- the oligomer compounds obtained by the present synthesis example include triazine trione compounds having the substituent formula (37) and oligomer compounds in which triazine trione rings are linked by the linking group formula (53). Presumed.
- the reaction solution was dropped into a mixed solvent of water and ethanol, and the deposited precipitate was filtered to obtain a copolymerized high molecular weight compound of trifluoroethyl methacrylate, methacrylic acid, and 2-hydroxypropyl methacrylate.
- GPC analysis of the obtained polymer compound showed a weight average molecular weight of 15,000 in terms of standard polystyrene.
- the solution was filtered using a polyethylene microfilter having a pore size of 0.10 / zm, and further filtered using a polyethylene microfilter having a pore size of 0.05 ⁇ to prepare an anti-reflection film forming composition solution.
- Example 2 To 10 g of a solution containing 2 g of the oligomer compound obtained in Synthesis Example 2 above was added 0.3 g of hexamethoxymethylmelamine (trade name: Cymel 303, manufactured by Mitsui Cytec Co., Ltd.) and 0.3 g of pyridinium-p-toluenesulfonic acid. 03 g was mixed and dissolved in 20 g of propylene glycol monomethyl ether and 28 g of ethyl lactate to prepare a solution. Thereafter, the solution was filtered using a polyethylene microfilter having a pore size of 0.10 ⁇ , and further filtered using a polyethylene microfilter having a pore size of 0.05 ⁇ to prepare an anti-reflection film forming composition solution.
- hexamethoxymethylmelamine trade name: Cymel 303, manufactured by Mitsui Cytec Co., Ltd.
- pyridinium-p-toluenesulfonic acid 03 g was
- Example 14 Thereafter, the solution was filtered using a polyethylene microfilter having a pore size of 0.10 ⁇ , and further filtered using a polyethylene microfilter having a pore size of 0.05 ⁇ to prepare an antireflection film forming composition solution.
- Example 14
- Tetrabutoxymethyldaricol peril (manufactured by Mitsui Cytec Co., Ltd., trade name Cymel 1 17) was added to 10 g of a solution containing 2 g of the oligomeric compound obtained in Synthesis Example 15 above. 0) 0.5 g, 0.05 g of 5-sulfosalicylic acid, 12 g of propylene glycol monomethyl ether, 37 g of ethyl lactate, and 4 g of cyclohexanone were added to prepare a solution. Thereafter, the solution was filtered using a polyethylene microfilter having a pore size of 0.10 tm, and further filtered using a polyethylene microfilter having a pore size of 0.05 jurn to prepare an antireflection film forming composition solution.
- the solution was filtered using a polyethylene microfilter having a pore diameter of 0.10 ⁇ , and further filtered using a polyethylene microfilter having a pore diameter of 0.05 ⁇ to prepare an antireflection film-forming composition solution.
- the solution was filtered using a polyethylene microfilter having a pore size of 0.1 O ⁇ m, and further filtered using a polyethylene microfilter having a pore size of 0.05 Aim to prepare an anti-reflection film forming composition solution. .
- Hexamethoxymethylmelamine 0.3 g, p-toluenesulfonic acid 0.Olg, propylene glycol were added to 10 g of a solution containing 2 g of the polymer compound obtained in Synthesis Example 18 above.
- a solution was added by adding 37.3 g of coal monomethyl ether and 19.4 g of propylene daricone monomethinoleate teracetate. Thereafter, the solution is filtered using a polyethylene microfilter having a pore size of 0.1 ⁇ , and further filtered using a polyethylene microfilter having a pore size of 0.05 ⁇ to obtain an anti-reflection film forming composition solution. It was prepared.
- the anti-reflective film forming composition solutions prepared in Examples 1 to 21 and Comparative Examples 1 to 3 were applied to a silicon wafer by a spinner.
- the coating was baked on a hot plate at 205 ° C for 1 minute to form an antireflection film (0.10 ⁇ ).
- This antireflection film was immersed in a solvent used for the photoresist, for example, ethyl lactate and propylene glycol monomethyl ether, and it was confirmed that the film was insoluble in the solvent.
- the anti-reflective coating forming composition solutions prepared in Examples 1 to 6, 13 to 21 and Comparative Examples 1 and 3 were applied onto a silicon wafer by a spinner. It was heated and baked at 205 ° C for 1 minute on a hot plate to form an anti-reflection film (0.10 ⁇ in thickness).
- a commercially available photoresist solution (trade name: UV113, manufactured by Shipley Co.) was applied to the upper layer of the antireflection film for lithography by a spinner. After heating at 120 ° C. for 1 minute on a hot plate, the photoresist was exposed, and post-exposure baking (PEB: Pos E x Pos ure Bake) was performed at 115 ° C. for 1.5 minutes.
- the film thickness of the antireflection film was measured and obtained from the antireflection film forming composition solutions prepared in Examples 1 to 6, 13 to 21 and Comparative Examples 1 and 3. It was confirmed that intermixing between the anti-reflection film for lithography and the photoresist layer did not occur.
- the antireflection film forming composition solutions prepared in Examples 1 to 4, 13-21 and Comparative Examples 1 and 3 were applied onto a silicon wafer by a spinner.
- the film was baked on a hot plate at 205 ° C. for 1 minute to form an antireflection film (film thickness: 0.06 / zm).
- the refractive index (n value) and the extinction coefficient (k value) at a wavelength of 248 nm were measured for these anti-reflection films using a spectroscopic ellipsometer. The results are shown in Tables 2 and 5.
- the anti-reflective coating forming composition solutions prepared in Examples 5 and 6 were applied onto a silicon wafer by a spinner. It was baked at 205 ° C for 1 minute on a hot plate to form an anti-reflection film (thickness: 0.06 ⁇ ). Then, these antireflection films were subjected to a refractive index (n value) at a wavelength of 157 nm using a spectroscopic ellipsometer (JAVA Wo ⁇ 11 am, VUV—VAS VU-302). And the damping coefficient (k value) were measured. Table 3 shows the results of the evaluation.
- the anti-reflective coating forming composition solutions prepared in Examples 7 to 12 and Comparative Example 2 were applied on a silicon wafer by a spinner.
- the coating was baked at 205 ° C for 1 minute on a hot plate to form an antireflection film (thickness: 0.09 ⁇ m).
- the refractive index (n value) and the attenuation coefficient (k value) at a wavelength of 193 nm of these antireflection films were measured by a spectroscopic ellipsometer. Table 4 shows the results.
- the anti-reflective film forming composition solutions prepared in Examples 1 to 21 and Comparative Examples 1 to 3 were applied to a silicon wafer by a spinner. It was baked at 205 ° C for 1 minute on a hot plate to form an antireflection film. Then, the dry etching rate was measured under the condition that CF was used as a dry etching gas by using a RIE system ES401 manufactured by Japan Scientific.
- a coating solution was formed on a silicon wafer using a photoresist solution (trade name: UV113, manufactured by Shipley Co., Ltd. and brand name: PAR710, manufactured by Sumitomo Chemical Co., Ltd.).
- a photoresist solution trade name: UV113, manufactured by Shipley Co., Ltd. and brand name: PAR710, manufactured by Sumitomo Chemical Co., Ltd.
- the dry etching rate was measured under the condition that CF was used as a dry etching gas.
- Antireflection coatings of Examples 1 to 4, 13-2-1 and Comparative Examples 1 and 3 The comparison was made with the dry etching rate of Shipley's photoresist, trade name UV113. The results are shown in Tables 2 and 5.
- the antireflection films of Examples 5 to 12 and Comparative Example 2 were compared with the dry etching speed of PAR 710, a photoresist manufactured by Sumitomo Chemical Co., Ltd. The results are shown in Tables 3 and 4.
- Example 2 1.80 0.52 41 ⁇ 0.1 1.3
- Example 3 1.79 0.54 41 ⁇ 0.11.3
- Example 4 1.81 0.50 41 ⁇ 0.1 1.5 Comparative Example 1 1.48 0.47 59 0.2 2 1.3
- Table 3 Refractive index (n value) Attenuation coefficient (k value) vs. photoresist dry etching rate selectivity
- Example 5 1.75 0.36 2.47
- Example 6 1.61 0.41 2.08
- Example 1 (n value) (k value) (nm) (%) Dry etching speed selection ratio
- Example 1 3.82 0.59 39 ⁇ 11.4
- Example 1 4. 1.82 0 0.61 38 ⁇ 1 1. 4
- Example 1 5 1 .84 0.61 38 ⁇ 11.4
- Example 1 16 1.77 0.45 44 ⁇ 1 1.6
- Example 1 7 1.80 0.58 40 ⁇ 1 1.4
- Example 18 1 .81 1 .57 40 ⁇ 11.4
- Example 1 19 1 .79 0 .59 42 ⁇ 1 1.4
- Example 2 0 1.79 0 .57 42 ⁇ 1 1.4
- Example 2 1 1.82 0.59 39 ⁇ 11.5 Comparative Example 3 1.50 0.48 57. ⁇ 1 1.3
- the antireflection film obtained from the antireflection film-forming composition of the present invention has a wavelength of 248 nm (Examples:! To 4, Examples 13 to 21) and 157 nm (Examples 5, 6). It can be seen that they have a sufficiently effective refractive index and extinction coefficient for light of 193 nm (Examples 7 to 12).
- the present invention exhibits good light absorption for light having a wavelength used in the manufacture of semiconductor devices, has a high antireflection effect, and has a high dry etching rate as compared with a photoresist layer.
- an excellent anti-reflective coating composition for forming an excellent bottom-type organic anti-reflective coating which does not cause intermixing with the photoresist layer and does not have a diffusion substance in the resist when heated and dried. Can be.
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- Materials For Photolithography (AREA)
- Paints Or Removers (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
- Epoxy Resins (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Polyamides (AREA)
- Polyethers (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003271123A AU2003271123A1 (en) | 2002-10-09 | 2003-10-08 | Composition for forming antireflection film for lithography |
JP2005501017A JP4171920B2 (ja) | 2002-10-09 | 2003-10-08 | リソグラフィー用反射防止膜形成組成物 |
DE60330798T DE60330798D1 (de) | 2002-10-09 | 2003-10-08 | Zusammensetzung zur bildung einer antireflexschicht für die lithographie |
EP03751376A EP1560070B1 (en) | 2002-10-09 | 2003-10-08 | Composition for forming antireflection film for lithography |
US10/530,349 US7425399B2 (en) | 2002-10-09 | 2003-10-08 | Composition for forming anti-reflective coating for use in lithography |
US11/979,448 US7846638B2 (en) | 2002-10-09 | 2007-11-02 | Composition for forming anti-reflective coating for use in lithography |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002295777 | 2002-10-09 | ||
JP2002-295777 | 2002-10-09 | ||
JP2003-126886 | 2003-05-02 | ||
JP2003126886 | 2003-05-02 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10530349 A-371-Of-International | 2003-10-08 | ||
US11/979,448 Continuation US7846638B2 (en) | 2002-10-09 | 2007-11-02 | Composition for forming anti-reflective coating for use in lithography |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004034148A1 true WO2004034148A1 (ja) | 2004-04-22 |
Family
ID=32095413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/012875 WO2004034148A1 (ja) | 2002-10-09 | 2003-10-08 | リソグラフィー用反射防止膜形成組成物 |
Country Status (8)
Country | Link |
---|---|
US (2) | US7425399B2 (ja) |
EP (1) | EP1560070B1 (ja) |
JP (1) | JP4171920B2 (ja) |
KR (1) | KR101026127B1 (ja) |
AU (1) | AU2003271123A1 (ja) |
DE (1) | DE60330798D1 (ja) |
TW (1) | TWI280459B (ja) |
WO (1) | WO2004034148A1 (ja) |
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JPWO2005111724A1 (ja) * | 2004-05-14 | 2008-03-27 | 日産化学工業株式会社 | ビニルエーテル化合物を含む反射防止膜形成組成物 |
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AU2003271123A1 (en) | 2004-05-04 |
KR20050061523A (ko) | 2005-06-22 |
TW200413856A (en) | 2004-08-01 |
EP1560070B1 (en) | 2009-12-30 |
KR101026127B1 (ko) | 2011-04-05 |
JPWO2004034148A1 (ja) | 2006-02-09 |
TWI280459B (en) | 2007-05-01 |
JP4171920B2 (ja) | 2008-10-29 |
EP1560070A4 (en) | 2006-02-08 |
EP1560070A1 (en) | 2005-08-03 |
US7846638B2 (en) | 2010-12-07 |
US20080206680A1 (en) | 2008-08-28 |
US7425399B2 (en) | 2008-09-16 |
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