WO2019066000A1 - リソグラフィー用組成物、パターン形成方法、及び化合物 - Google Patents
リソグラフィー用組成物、パターン形成方法、及び化合物 Download PDFInfo
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- WO2019066000A1 WO2019066000A1 PCT/JP2018/036344 JP2018036344W WO2019066000A1 WO 2019066000 A1 WO2019066000 A1 WO 2019066000A1 JP 2018036344 W JP2018036344 W JP 2018036344W WO 2019066000 A1 WO2019066000 A1 WO 2019066000A1
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- JXICVFDZUXEDNZ-UHFFFAOYSA-N CCO[Te]12(OCC)([O]=C(C)C=C(C)O1)[O]=C(C)C=C(C)O2 Chemical compound CCO[Te]12(OCC)([O]=C(C)C=C(C)O1)[O]=C(C)C=C(C)O2 JXICVFDZUXEDNZ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F11/00—Compounds containing elements of Groups 6 or 16 of the Periodic Table
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- 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
- G03F7/0042—Photosensitive materials with inorganic or organometallic light-sensitive compounds not otherwise provided for, e.g. inorganic resists
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- 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
- G03F7/0042—Photosensitive materials with inorganic or organometallic light-sensitive compounds not otherwise provided for, e.g. inorganic resists
- G03F7/0043—Chalcogenides; Silicon, germanium, arsenic or derivatives thereof; Metals, oxides or alloys thereof
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- 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
- G03F7/0045—Photosensitive materials with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
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- 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
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
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- 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
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
- G03F7/029—Inorganic compounds; Onium compounds; Organic compounds having hetero atoms other than oxygen, nitrogen or sulfur
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- 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
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- 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
- G03F7/20—Exposure; Apparatus therefor
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- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
Definitions
- the present invention relates to a composition for lithography, a method of forming a pattern, and a compound.
- the light source for lithography used in forming a resist pattern is shorted from a KrF excimer laser (oscillation wavelength: 248 nm) to an ArF excimer laser (oscillation wavelength: 193 nm), and further an electron beam or The introduction of extreme ultraviolet (hereinafter referred to as "EUV”) (oscillation wavelength: 13.5 nm) is also expected.
- EUV extreme ultraviolet
- the molecular weight is as large as about 10,000 to 100,000, and the molecular weight distribution is also broad, so that roughness occurs on the surface of the pattern, making it difficult to control the pattern dimension and miniaturizing There is a limit.
- resist materials containing various low molecular weight components in order to provide a resist pattern of higher resolution.
- the low molecular weight resist material is expected to give a resist pattern having high resolution and small roughness because the molecular size is small.
- an alkali-developable negative radiation sensitive composition for example, Patent Document 1 and Patent Document 2 using a low molecular weight polynuclear polyphenol compound as a main component is proposed.
- an alkali developing type negative radiation sensitive composition using a low molecular weight cyclic polyphenol compound as a main component has also been proposed.
- lithography using electron beam or EUV differs in its reaction mechanism from ordinary photolithography.
- fine pattern formation of several tens of nm is aimed.
- a resist material having high sensitivity to the exposure light source is required.
- Patent Document 4 As a resist material which ameliorates these problems, an inorganic resist material containing any of titanium, hafnium and zirconium has been proposed (for example, Patent Document 4 and Patent Document 5).
- Patent Documents 1 to 3 have not examined storage stability of the radiation sensitive composition.
- the storage stability of the resist material is not examined, and the resist material of this document is also required to further improve the storage stability, for example, to more stably obtain a resist pattern. ing. Further, there is a demand for further improvement in sensitivity of the resist material of this document.
- Patent Document 5 evaluates the storage stability of a resist material, only a resist material containing a complex containing a specific metal (hafnium, zirconium) is evaluated, and such a metal is included. The sensitivity is not sufficient for a resist material containing a complex.
- the object of the present invention is a compound which has excellent solubility, and when used as a material for lithography, can satisfy excellent film formability, pattern formability and storage stability in a well-balanced manner. It is an object of the present invention to provide a composition for lithography and a method of forming a pattern.
- the present inventors have found that a compound having a specific structure containing tellurium is excellent in solubility, and when used as a material for lithography, excellent film forming property, pattern forming property, and storage. It has been found that stability can be satisfied in a well-balanced manner, and the present invention has been completed.
- L is any one of acetylacetonate, 2,2-dimethyl-3,5-hexanedione, ethylenediamine, diethylenetriamine and methacrylic acid, [1] to [5] Composition for any of the following.
- composition for lithography according to any one of [1] to [10], further comprising a polymerization initiator.
- [12] Forming a resist film on a substrate using the composition for lithography according to any one of [1] to [11]; Exposing the resist film; Developing the exposed resist film to form a pattern;
- a pattern forming method including: [13] The compound represented by following formula (1).
- L is a ligand other than OR 1
- R 1 is a hydrogen atom, a substituted or unsubstituted linear or 1-20 carbon atoms, or a branched 3-20 carbon atoms
- x is an integer of 0 to 6
- y is an integer of 0 to 6, the sum of x and y is 1 to 6, and when x is 2 or more, plural Ls may be the same or different, and y is 2 or more When it is, several R ⁇ 1 > may be same or different.
- a compound, a composition for lithography and a pattern which have excellent solubility and can satisfy excellent film formability, pattern formation and storage stability in a well-balanced manner when used as a material for lithography It is possible to provide a forming method.
- the present embodiment is an example for describing the present invention, and the present invention is not limited to the present embodiment.
- solubility refers to the property of being easily soluble in a safe solvent.
- film forming property refers to the property that defects are less likely to occur in the formed film when the thin film is formed.
- High sensitivity refers to the property that the minimum energy dose required to obtain a pattern is small.
- Pattern formability refers to the property that the pattern shape is good when forming a resist pattern.
- Preservation stability refers to the property that precipitates are less likely to occur even when stored for a long time.
- the compound of the present embodiment is a compound represented by the following formula (1) (also referred to as “tellurium-containing compound”). [L x Te (OR 1 ) y ] (1)
- L is a ligand other than OR 1
- R 1 is a hydrogen atom, a substituted or unsubstituted linear or branched carbon having 1 to 20 carbon atoms, or a branched or 3 to 20 carbon atoms
- x is an integer of 0 to 6
- y is an integer of 0 to 6
- the sum of x and y is 1 to 6
- plural Ls may be the same or different and y is 2 or more
- a plurality of R 1 may be the same or different.
- the tellurium-containing compound of the present embodiment has excellent solubility, and when used as a lithography material, it can satisfy excellent film forming property, high sensitivity, pattern forming property, and storage stability in a well-balanced manner.
- the tellurium-containing compound of the present embodiment contains, among the elements, xenon and then a tellurium atom having a high sensitizing effect, which is mainly attributed to high sensitization in lithography (in particular, lithography using EUV). An effect can be obtained, and as a result, it is excellent in high sensitivity and pattern formability.
- R 1 represents a hydrogen atom, a substituted or unsubstituted linear or branched alkyl or branched alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, And any substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms.
- R 1 s When there are a plurality of R 1 s , they may be the same as or different from each other.
- R 1 include, for example, methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, icosyl group, cyclo A propyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, a cyclononyl group, a cyclodecyl group, a cycloundecyl group, a cyclododecyl group, a cycloicosyl group, a norbornyl group, an adamantyl group, a phenyl group, a naphthyl group, Anthracene group, pyrenyl group,
- the butyl group is not limited to n-butyl group, and may be isobutyl group, sec-butyl group or tert-butyl group.
- these groups may have a substituent in the range which does not exceed 20 carbon atoms, As a substituent, it consists of a carboxyl group, an acryl group, methacryl group, and the group containing these groups
- One kind of functional group selected from the group is mentioned. However, when x is 0 and y is 4, all R 1 may not be methyl groups.
- R 1 is preferably a straight chain having 1 to 6 carbon atoms or a branched or cyclic alkyl group having 3 to 6 carbon atoms, It is more preferable that it is a linear or 1-4 branched or cyclic alkyl group having 1 to 4 carbon atoms.
- the substituent is preferably one or more selected from the group consisting of a carboxyl group, a group containing a carboxyl group, an acrylate group and a methacrylate group, and from the group consisting of an acrylate group and a methacrylate group More preferably, it is one or more selected.
- L is a ligand other than OR 1 and may be a monodentate ligand or a bidentate or higher polydentate ligand. When there are a plurality of L, they may be the same as or different from each other.
- the monodentate ligand examples include acrylate, methacrylate, amine, chloro, cyano, thiocyano, isothiocyanate nano, nitro, nitrite, triphenylphosphine, pyridine and the like.
- Specific examples of the polydentate ligand include ethylenediamine, cetylacetonate, diethylenetriamine, ethylenediaminetetraacetic acid, cyclopentene and the like.
- L is preferably a bidentate or higher polydentate ligand from the viewpoint of storage stability, and acetylacetonate, 2,2-dimethyl-3,5-hexanedione, ethylenediamine, diethylenetriamine and methacrylic acid are preferable. It is more preferable that it is either.
- X is an integer of 0 to 6
- y is an integer of 0 to 6
- x + y is 1 to 6.
- x is preferably an integer of 1 to 6, more preferably an integer of 1 to 4, and still more preferably 1 or 2.
- y is preferably an integer of 1 to 6, more preferably an integer of 1 to 4, and still more preferably an integer of 2 to 4.
- the compound represented by the formula (1) can be obtained, for example, by the following method. That is, tellurium tetrachloride is obtained by heating metal tellurium or tellurium dioxide to about 500 ° C. under a chlorine gas flow. Next, an alkoxy tellurium compound in which x is 0 and y is 1 or more in the formula (1) is produced by reacting the obtained tellurium tetrachloride with sodium alkoxide with no catalyst and under ice cooling. You can get it.
- tetraethoxytellurium (IV) represented by the following formula (TOX-1) can be obtained by reacting tellurium tetrachloride with ethanol.
- the tellurium-containing compound can also be obtained by electrolysis using metal tellurium as the anode.
- L which is a ligand other than OR 1 can be obtained by various methods.
- L is obtained by mixing and stirring an alkoxy tellurium compound or metal tellurium dissolved in an organic solvent such as tetrahydrofuran and L which is a ligand dissolved in an organic solvent such as tetrahydrofuran, and removing the organic solvent.
- Coordinated tellurium-containing compounds can be obtained. A specific example is shown below.
- tetraethoxy tellurium (IV) represented by the formula (TOX-1) when used as the alkoxy tellurium compound, it was dissolved in 20 mL of tetrahydrofuran in a container having an inner volume of 100 mL equipped with a stirrer, a condenser and a burette.
- Add 1.0 g of tetraethoxytellurium (IV) represented by the formula (TOX-1) add 0.6 g of acetylacetone dissolved in 5 mL of tetrahydrofuran, reflux for 1 hour, and remove the solvent under reduced pressure
- TOX-2 a compound represented by the following formula (TOX-2) can be obtained.
- composition for lithography of the present embodiment contains the compound represented by the formula (1).
- the composition for lithography of the present embodiment contains the tellurium-containing compound of the present embodiment, it can satisfy excellent film formability, high sensitivity, patternability, and storage stability in a well-balanced manner.
- composition for lithography of the present embodiment can be applied other than for resist (for resist film formation), but can be suitably used for resist.
- the composition for lithography of the present embodiment may contain, in addition to the compound represented by the formula (1), a resin used as a material for lithography (in particular, a resist material).
- a resin used as a material for lithography in particular, a resist material.
- the “resin” referred to in the present specification excludes the tellurium-containing compound represented by the formula (1), the solvent described later, an acid generator, an acid crosslinking agent, an acid diffusion control agent, a polymerization initiator, and other components. It refers to a film forming component, and also to a concept including low molecular weight compounds.
- the resin is not particularly limited.
- naphthol resin modified resin in which xylene formaldehyde resin is modified with phenols (eg, phenol, naphthol, etc.), naphthalene formaldehyde resin is modified with phenols (eg, phenol, naphthol etc.)
- Modified resin dicyclopentadiene resin, novolak resin, polyvinylphenols, polyacrylic acid, polyvinyl alcohol, styrene-maleic anhydride resin, and a polymer containing acrylic acid, vinyl alcohol or vinylphenol as a monomer unit or These derivatives are mentioned.
- These resins can be used alone or in combination of two or more.
- the resin is at least one selected from the group consisting of naphthol resin, naphthol modified resin of xylene formaldehyde resin, and phenol modified resin of naphthalene formaldehyde resin from the viewpoint of achieving the function and effect of the present invention more effectively and reliably.
- naphthol resin naphthol modified resin of xylene formaldehyde resin
- phenol modified resin of naphthalene formaldehyde resin from the viewpoint of achieving the function and effect of the present invention more effectively and reliably.
- it is more preferable that it is a phenol modified resin of naphthalene formaldehyde resin.
- the content of the resin is not particularly limited, and is preferably 1000 parts by mass or less, more preferably 500 parts by mass or less, and still more preferably 200 parts by mass with respect to 100 parts by mass of the total of the tellurium-containing compound and resin of the present embodiment.
- the content is particularly preferably 100 parts by mass or less.
- the composition for lithography (for example, composition for resists) of this embodiment contains a solvent.
- the solvent is not particularly limited.
- ethylene glycol monoalkyl ether acetate such as ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol mono-n-propyl ether acetate, ethylene glycol mono-n-butyl ether acetate, etc.
- Ethylene glycol monoalkyl ethers such as ethylene glycol monomethyl ether and ethylene glycol monoethyl ether; propylene glycol monomethyl ether acetate (PGMEA), propylene glycol monoethyl ether acetate, propylene glycol mono-n-propyl ether acetate, propylene glycol mono Propylene glycol such as n-butyl ether acetate Cole monoalkyl ether acetates; Propylene glycol monoalkyl ethers such as propylene glycol monomethyl ether (PGME) and propylene glycol monoethyl ether; methyl lactate, ethyl lactate, n-propyl lactate, n-butyl lactate, n-amyl lactate and the like Fatty acid esters of methyl acetate, ethyl acetate, n-propyl acetate, n-butyl acetate, n-amyl lac
- the solvent used in the present embodiment is preferably a safe solvent, more preferably at least one selected from PGMEA, PGME, CHN, CPN, 2-heptanone, anisole, butyl acetate, ethyl propionate and ethyl lactate. It is a species, more preferably at least one selected from PGMEA, PGME and CHN.
- the content of the solvent in the composition for lithography is not particularly limited, but is solid relative to 100% by mass of the composition for lithography (for example, the composition for resist)
- the content of the component is 1 to 80% by mass, the content of the solvent is preferably 20 to 99% by mass, the content of the solid component is 1 to 50% by mass, the content of the solvent is 50 to 50% It is more preferable that the content is 99% by mass, the content of the solid component is 2 to 40% by mass, the content of the solvent is more preferably 60 to 98% by mass, and the content of the solid component is 2 to 10 It is particularly preferred that the content is% by mass and the content of the solvent is 90 to 98% by mass.
- composition for lithography for example, composition for resists
- composition for resists includes, as other solid components, an acid generator (P), an acid crosslinking agent (C), an acid diffusion control agent (Q) and other components ( It may contain at least one selected from the group consisting of E).
- solid component said to this specification means components other than a solvent in the composition for lithography of this embodiment.
- the composition for lithography for example, composition for resists
- a radiation for example, EUV
- the acid generator known ones can be used and include, but are not particularly limited to, for example, the compounds described in paragraphs 0077 to 0093 of WO 2013/024778.
- the acid generator preferably contains a compound having an aromatic ring, and is more preferably a compound (acid generator) represented by the following formula (2-1) or (2-2).
- R 13 which may be the same or different, each independently represents a hydrogen atom, a linear, branched or cyclic alkyl group, a linear, branched or cyclic alkoxy group, hydroxyl X - represents a sulfonate ion or a halide ion having an alkyl group, an aryl group, a halogen-substituted alkyl group or a halogen-substituted aryl group.
- R 14 may be the same or different, and each independently represents a hydrogen atom, a linear, branched or cyclic alkyl group, a linear, branched or cyclic alkoxy group, hydroxyl Represents a group or a halogen atom.
- X - is as defined above.
- the compound represented by the formula (2-1) is triphenylsulfonium trifluoromethanesulfonate, triphenylsulfonium nonafluoro-n-butanesulfonate, diphenyltolylsulfonium nonafluoro-n-butanesulfonate, triphenylsulfonium perfluoro-n- Octane sulfonate, diphenyl-4-methylphenylsulfonium trifluoromethanesulfonate, di-2,4,6-trimethylphenylsulfonium trifluoromethanesulfonate, diphenyl 4-butoxyphenylsulfonium trifluoromethanesulfonate, diphenyl-4-t-butoxyphenylsulfonium nonafluoro- n-butanesulfonate, diphenyl-4-hydroxyphenylsulfonium trifluoromethanesulfonate Bis
- the compound represented by the formula (2-2) is bis (4-t-butylphenyl) iodonium trifluoromethanesulfonate, bis (4-t-butylphenyl) iodonium nonafluoro-n-butanesulfonate, bis (4-t) -Butylphenyl) iodonium perfluoro-n-octanesulfonate, bis (4-t-butylphenyl) iodonium p-toluenesulfonate, bis (4-t-butylphenyl) iodonium benzenesulfonate, bis (4-t-butylphenyl) Iodonium-2-trifluoromethylbenzenesulfonate, bis (4-t-butylphenyl) iodonium-4-trifluoromethylbenzenesulfonate, bis (4-t-butylphenyl) iodonium-2,4-di
- X in formula (2-1) or (2-2) - is an aryl group or halogen-substituted aryl group acid generator having a sulfonic acid ion is more preferably having the acid generator having a sulfonate ion having an aryl group
- Particularly preferred is one selected from the group consisting of diphenyltrimethylphenylsulfonium p-toluenesulfonate, triphenylsulfonium p-toluenesulfonate, triphenylsulfonium trifluoromethanesulfonate, and triphenylsulfonium nonafluoromethanesulfonate. Particularly preferred.
- the content of the acid generator in the composition for lithography of the present embodiment is preferably 0.001 to 49% by mass, more preferably 1 to 40% by mass, based on the total mass of the solid components. It is further preferable that the content be 30% by mass, and particularly preferably 10 to 25% by mass. When the content is in the above range, a pattern profile with higher sensitivity and lower edge roughness tends to be obtained.
- the composition for lithography of the present embodiment preferably contains an acid crosslinking agent for intramolecular or intermolecular crosslinking of the compound and / or resin described later in the presence of the acid generated from the acid generator.
- the acid crosslinking agent contains, for example, a compound (crosslinkable group-containing compound) containing one or more crosslinkable groups capable of crosslinking the resin.
- crosslinkable group-containing compound known compounds can be used, and not particularly limited, examples thereof include the compounds described in paragraphs 0096 to 0123 of WO 2013/024778. These crosslinkable group-containing compounds can be used alone or in combination of two or more.
- the content of the acid crosslinking agent in the composition for lithography of the present embodiment is preferably 0.5 to 49% by mass, and more preferably 0.5 to 40% by mass of the total mass of the solid components. It is more preferably 1 to 30% by mass, and particularly preferably 2 to 20% by mass.
- the content is 0.5% by mass or more, the effect of suppressing the solubility of the resist film in an alkali developer is improved, and the residual film ratio is further reduced, or the swelling or meandering of the pattern occurs. Tend to be further suppressed.
- the content is 50% by mass or less, the decrease in heat resistance as a resist tends to be further suppressed.
- the composition for lithography of the present embodiment controls the diffusion of an acid generated from an acid generator by radiation irradiation in a resist film to prevent an undesirable chemical reaction in an unexposed area. It is preferable to contain
- the composition for lithography of the present embodiment contains an acid diffusion control agent, the storage stability of the composition for lithography (particularly, resist composition) tends to be further improved.
- the resolution is further improved, and the line width change of the resist pattern due to the change of the setting time before radiation irradiation and the setting time after radiation irradiation can be further suppressed, and the process stability is further improved.
- the acid diffusion control agent contains, for example, a radiation degradable basic compound such as a basic compound containing a nitrogen atom, a basic sulfonium compound, and a basic iodonium compound. More specifically, examples of the radiolyzable basic compound include the compounds described in paragraphs 0128 to 0141 of WO 2013/024778. These radiolyzable basic compounds can be used alone or in combination of two or more.
- a radiation degradable basic compound such as a basic compound containing a nitrogen atom, a basic sulfonium compound, and a basic iodonium compound.
- examples of the radiolyzable basic compound include the compounds described in paragraphs 0128 to 0141 of WO 2013/024778. These radiolyzable basic compounds can be used alone or in combination of two or more.
- the content of the acid diffusion control agent in the composition for lithography of the present embodiment is preferably 0.001 to 49% by mass, more preferably 0.01 to 10% by mass, based on the total mass of the solid components.
- the content is more preferably 0.01% to 5% by mass, and particularly preferably 0.01% to 3% by mass.
- the shape of the upper layer portion of the pattern does not deteriorate even if the placement time from heating to irradiation and irradiation after the irradiation by an electronic warfare person is long.
- the storage stability of the composition for lithography (particularly, resist composition) is further improved, and the resolution is further improved, and at the same time, the storage before irradiation is delayed. It is possible to further suppress the line width change of the resist pattern due to the time and the change of the drawing time after the irradiation, and the process stability is further improved.
- the composition for lithography of the present embodiment may contain other components (hereinafter also referred to as “optional components”) as long as the effects of the present invention are not impaired.
- Other components include a dissolution promoter, a dissolution control agent, a polymerization initiator, a sensitizer, a surfactant, and an organic carboxylic acid or an oxo acid of phosphorus or a derivative thereof, and more specifically, an international publication Those described in paragraphs 0144 to 0150 of 2013/024778 can be mentioned.
- the "other components” as used herein refer to the above-described compounds and resins used as materials for lithography, acid generators, acid cross-linking agents, and components other than acid diffusion control agents.
- the polymerization initiator that can be contained in the composition for lithography of the present embodiment is limited as long as it causes the polymerization reaction of one or more components selected from the tellurium-containing compound represented by the above formula (1) and resin by exposure to light. And may contain a known polymerization initiator. Examples of initiators include, but are not limited to, photo radical polymerization initiators, photo cation polymerization initiators, and photo anion polymerization initiators, and from the viewpoint of reactivity, photo radical polymerization initiators preferable. Moreover, it is preferable that the composition containing the said polymerization initiator is a composition from which a negative resist pattern is obtained.
- Examples of the photo radical polymerization initiator include, but are not limited to, alkylphenone type, acyl phossin oxide type, oxyphenyl acetate ester type, and from the viewpoint of reactivity, alkyl phenone type is preferable. From the viewpoint of easy availability, 1-hydroxycyclohexyl-phenyl ketone (BASF product name Irgacure 184), 2,2-dimethoxy-2-phenylacetophenone (BASF product name Irgacure 651), 2-hydroxy-2-phenyl-2-phenylacetophenone Methyl-1-phenylpropanone (BASF product name: Irgacure 1173) is preferred.
- the content of the compound and / or resin used as a substrate for lithography (for example, a resist substrate) in the composition for lithography (for example, a composition for a resist) of the present embodiment is not particularly limited.
- Mass total mass of solid components including optional components such as resist base, acid generator (P), acid crosslinker (C), acid diffusion control agent (Q), and other components (E)
- the content is preferably 1 to 99% by mass, more preferably 2 to 90% by mass, still more preferably 5 to 80% by mass, and particularly preferably 10 to 70% by mass. As a result, the resolution is further improved, and the line edge roughness (LER) tends to be further reduced.
- a material for lithography for example, a composition for resist
- a material for lithography that is, the above-described tellurium-containing compound and resin, hereinafter, also referred to as component (M)
- an acid generator P
- Content of acid crosslinking agent C
- acid diffusion control agent Q
- other components optional components
- E component (M) / acid generator (P) / acid crosslinking agent (C) / acid
- the diffusion control agent (Q) / optional component (E)) is preferably 1 to 99 / 0.001 to 49/0 to 49 / 0.001 to 49/0 to 99, in terms of mass% on a solids basis.
- 2 to 90/1 to 40/0 to 10 / 0.01 to 10/0 to 90 is preferably 5 to 80/3 to 30/0 to 5 / 0.01 to 5/0 to 80, particularly Preferably, it is 10 to 70/10 to 25/0 to 3 / 0.01 to 3/0 to 80.
- the blending ratio of each component is selected from each range so that the total amount is 100% by mass. If it is made the said combination, it tends to be excellent in performances, such as a sensitivity, resolution, developability.
- the resist composition of the present embodiment is usually prepared by dissolving each component in a solvent at the time of use to form a uniform solution, and then filtering it with, for example, a filter with a pore diameter of about 0.2 ⁇ m, if necessary. Ru.
- the resist composition of the present embodiment can form an amorphous film by spin coating. Moreover, it can apply to a general semiconductor manufacturing process.
- the dissolution rate of the amorphous film formed by spin coating the composition for lithography (for example, resist composition) of the present embodiment at 23 ° C. in a developer is preferably 10 ⁇ / sec or more.
- the dissolution rate is 10 ⁇ / sec or more, it is easily soluble in a developer and is more suitable for lithography (eg, resist).
- the dissolution rate is 10 ⁇ / sec or more, the resolution may be improved. It is presumed that this is because the micro surface part of the compound represented by the formula (1) and / or the resin dissolves to reduce LER, but the present invention is not limited by this assumption. There is also a defect reduction effect.
- the dissolution rate can be determined by immersing the amorphous film in a developer for a predetermined time at 23 ° C., and measuring the film thickness before and after the immersion by a known method such as visual observation, ellipsometer or QCM method.
- the dissolution rate is 5 ⁇ / sec or less, the composition is insoluble in a developer and can be used as a composition for lithography (for example, a resist).
- the dissolution rate is 0.0005 ⁇ / sec or more, the resolution may be improved.
- the pattern forming method (resist pattern forming method) of the present embodiment includes the steps of forming a resist film on a substrate using the composition for lithography (resist composition) of the present embodiment, and exposing the formed resist film. And a step of developing the exposed resist film to form a pattern (resist pattern).
- the resist pattern of this embodiment can also be formed as an upper layer resist in a multilayer process.
- a resist film is formed by applying the resist composition of the present embodiment onto a conventionally known substrate by a coating means such as spin coating, cast coating, roll coating and the like (forming step).
- the conventionally known substrate is not particularly limited, and examples thereof include a substrate for an electronic component, and a substrate on which a predetermined wiring pattern is formed. More specifically, a silicon wafer, a metal substrate such as copper, chromium, iron, aluminum or the like, a glass substrate, etc. may be mentioned. Examples of the material of the wiring pattern include copper, aluminum, nickel, gold and the like.
- inorganic and / or organic films may be provided on the aforementioned substrate.
- inorganic films include inorganic antireflective films (inorganic BARCs).
- organic antireflective film (organic BARC) may be mentioned as the organic film. You may surface-treat by hexamethylene disilazane etc.
- the coated substrate is heated.
- the heating conditions vary depending on the composition of the resist composition and the like, but it is preferably 20 to 250 ° C., more preferably 20 to 150 ° C. By heating, the adhesion of the resist to the substrate may be improved, which is preferable.
- the resist film is exposed to a desired pattern by any radiation selected from the group consisting of visible light, ultraviolet light, excimer laser, electron beam, extreme ultraviolet (EUV), X-ray, and ion beam (exposure process) .
- the exposure conditions and the like are appropriately selected according to the composition and the like of the composition for lithography (the composition for a resist).
- the heating conditions vary depending on the composition of the composition for lithography (the composition for resist) and the like, but it is preferably 20 to 250 ° C., more preferably 20 to 150 ° C.
- the exposed resist film is developed with a developer to form a predetermined resist pattern (developing step).
- a polar solvent such as a ketone solvent, an ester solvent, an alcohol solvent, an amide solvent, an ether solvent, a hydrocarbon solvent or an aqueous alkaline solution can be used.
- ketone solvents include 1-octanone, 2-octanone, 1-nonanone, 2-nonanone, acetone, 4-heptanone, 1-hexanone, 2-hexanone, 2-hexanone, diisobutyl ketone, cyclohexanone, methylcyclohexanone, phenylacetone, methyl ethyl ketone And methyl isobutyl ketone, acetylacetone, acetonylacetone, ionone, diacetonyl alcohol, acetylcarbinol, acetophenone, methylnaphthyl ketone, isophorone, propylene carbonate and the like.
- ester solvents for example, methyl acetate, butyl acetate, ethyl acetate, isopropyl acetate, amyl acetate, propylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, diethylene glycol monoethyl ether acetate, ethyl-3 -Ethoxypropionate, 3-methoxybutyl acetate, 3-methyl-3-methoxybutyl acetate, methyl formate, ethyl formate, butyl formate, propyl formate, ethyl lactate, butyl lactate, propyl lactate and the like can be mentioned.
- alcohol solvents examples include methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol (2-propanol), n-butyl alcohol, sec-butyl alcohol, tert-butyl alcohol, isobutyl alcohol, n-hexyl alcohol, Alcohols such as 4-methyl-2-pentanol, n-heptyl alcohol, n-octyl alcohol, n-decanol, glycol solvents such as ethylene glycol, diethylene glycol, triethylene glycol, ethylene glycol monomethyl ether, propylene glycol monomethyl Ether, ethylene glycol monoethyl ether, propylene glycol monoethyl ether, diethylene glycol monomethyl ether, triethyl ether Glycol monoethyl ether, and triethylene glycol monoethyl ether and methoxymethyl butanol.
- Alcohols such as 4-methyl-2-pentanol, n-hepty
- ether solvents include, in addition to the glycol ether solvents, dioxane, tetrahydrofuran and the like.
- amide solvents include N-methyl-2-pyrrolidone, N, N-dimethylacetamide, N, N-dimethylformamide, hexamethylphosphoric triamide, 1,3-dimethyl-2-imidazolidinone and the like. It can be used.
- hydrocarbon-based solvent examples include aromatic hydrocarbon-based solvents such as toluene and xylene, and aliphatic hydrocarbon-based solvents such as pentane, hexane, octane and decane.
- a plurality of the solvents may be mixed, or may be used by mixing with a solvent other than the above or water within the range of performance.
- the water content of the developer as a whole is less than 70% by mass, preferably less than 50% by mass, and less than 30% by mass. It is more preferable that the content be less than 10% by mass, and it is particularly preferable that the composition contains substantially no water. That is, the content of the organic solvent in the developer is, for example, 30% by mass to 100% by mass, preferably 50% by mass to 100% by mass, and preferably 70% by mass, with respect to the total amount of the developer. The content is more preferably 100% by mass or less, still more preferably 90% by mass to 100% by mass, and particularly preferably 95% by mass to 100% by mass.
- alkaline aqueous solutions include alkaline compounds such as mono-, di- or trialkylamines, mono-, di- or trialkanolamines, heterocyclic amines, tetramethylammonium hydroxide (TMAH) and choline. It can be mentioned.
- alkaline compounds such as mono-, di- or trialkylamines, mono-, di- or trialkanolamines, heterocyclic amines, tetramethylammonium hydroxide (TMAH) and choline. It can be mentioned.
- the developing solution contains at least one solvent selected from ketone solvents, ester solvents, alcohol solvents, amide solvents and ether solvents, and the resolution and roughness of the resist pattern, etc.
- the vapor pressure of the developer is preferably 5 kPa or less, more preferably 3 kPa or less, and particularly preferably 2 kPa or less.
- vapor pressure of 5 kPa or less examples having a vapor pressure of 5 kPa or less include 1-octanone, 2-octanone, 1-nonanone, 2-nonanone, 4-heptanone, 2-hexanone, diisobutyl ketone, cyclohexanone, methylcyclohexanone, phenylacetone, methyl Ketone solvents such as isobutyl ketone, butyl acetate, amyl acetate, propylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, diethylene glycol monoethyl ether acetate, ethyl 3-ethoxypropionate, 3-methoxy Esters such as butyl acetate, 3-methyl-3-methoxybutyl acetate, butyl formate, propyl formate, ethyl lactate, butyl lactate,
- vapor pressure of 2 kPa or less which is a particularly preferable range include 1-octanone, 2-octanone, 1-nonanone, 2-nonanone, 4-heptanone, 2-hexanone, diisobutyl ketone, cyclohexanone and methylcyclohexanone
- Ketone solvents such as phenylacetone, butyl acetate, amyl acetate, propylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, diethylene glycol monoethyl ether acetate, ethyl 3-ethoxypropionate, 3- Ester solvents such as methoxybutyl acetate, 3-methyl-3-methoxybutyl acetate, ethyl lactate, butyl lactate and propyl lactate, n-butyl alcohol Alcohol solvents such as sec-butyl alcohol,
- the surfactant is not particularly limited, but for example, ionic or nonionic fluorine-based and / or silicon-based surfactants can be used.
- fluorine and / or silicon surfactants for example, JP-A-62-36663, JP-A-61-226746, JP-A-61-226745, JP-A-62-170950.
- JP-A-5360692, JP-A-5529881, JP-A-5296330, JP-A-5436098, JP-A-5576143, JP-A-5294511 and JP-A-5824451 can be cited.
- it is a nonionic surfactant.
- the nonionic surfactant is not particularly limited, but it is more preferable to use a fluorine-based surfactant or a silicon-based surfactant.
- the amount of surfactant used is, for example, 0.001 to 5% by mass, preferably 0.005 to 2% by mass, and more preferably 0.01 to 0.5% by mass, based on the total amount of the developer.
- a developing method for example, a method of immersing a substrate in a bath filled with a developer for a fixed time (dip method), a method of developing by standing up the developer on the substrate surface by surface tension and standing for a fixed time (paddle Method), a method of spraying a developer on the substrate surface (spray method), a method of continuously coating a developer while scanning a developer coating nozzle at a constant speed on a substrate rotating at a constant speed (dynamic dispense method Etc. can be applied.
- the time for developing the pattern is not particularly limited, but is preferably 10 seconds to 90 seconds.
- the rinse solution used in the rinse step after development is not particularly limited as long as it does not dissolve the resist pattern cured by crosslinking, and a solution containing a common organic solvent or water can be used.
- a rinse solution it is preferable to use a rinse solution containing at least one organic solvent selected from hydrocarbon solvents, ketone solvents, ester solvents, alcohol solvents, amide solvents and ether solvents.
- the development is followed by a step of washing with a rinse solution containing at least one organic solvent selected from the group consisting of ketone solvents, ester solvents, alcohol solvents, and amide solvents.
- the development is followed by a washing step using a rinse solution containing an alcohol solvent or an ester solvent.
- the development is followed by a washing step using a rinse solution containing a monohydric alcohol.
- development is followed by a step of washing with a rinse solution containing a monohydric alcohol having 5 or more carbon atoms.
- time for rinsing the pattern is preferably 10 seconds to 90 seconds.
- examples of the monohydric alcohol used in the rinse step after development include linear, branched and cyclic monohydric alcohols.
- 1-butanol, 2-butanol, 3-methyl- 1-Butanol, tert-butyl alcohol, 1-pentanol, 2-pentanol, 1-hexanol, 4-methyl-2-pentanol, 1-heptanol, 1-octanol, 2-hexanol, cyclopentanol, 2- Heptanol, 2-octanol, 3-hexanol, 3-heptanol, 3-octanol, 4-octanol and the like can be used.
- Particularly preferable monohydric alcohols having 5 or more carbon atoms include 1-hexanol, 2-hexanol, 4 -Methyl-2-pentanol, 1-pentanol, 3-methyl-1-butanol, etc. It is possible to have.
- Each of the components may be mixed, or mixed with an organic solvent other than the above.
- the water content in the rinse solution is preferably 10% by mass or less, more preferably 5% by mass or less, and particularly preferably 3% by mass or less. By setting the water content to 10% by mass or less, better development characteristics can be obtained.
- the vapor pressure of the rinse solution used after development is preferably 0.05 kPa or more and 5 kPa or less at 20 ° C., more preferably 0.1 kPa or more and 5 kPa or less, and most preferably 0.12 kPa or more and 3 kPa or less.
- An appropriate amount of surfactant may be added to the rinse solution.
- the wafer subjected to development is washed using the above-mentioned rinse solution containing an organic solvent.
- the method of the cleaning process is not particularly limited, for example, a method of continuously applying a rinse liquid onto a substrate rotating at a constant speed (rotation coating method), and immersing the substrate in a bath filled with the rinse liquid for a fixed time A method (dip method), a method of spraying a rinse solution on the substrate surface (spray method), etc. can be applied, among which the washing treatment is carried out by the spin coating method, and after washing, the substrate is rotated at a rotational speed of 2000 rpm to 4000 rpm. The substrate is preferably rotated to remove the rinse solution from the substrate.
- the patterned wiring board can be obtained by etching.
- the etching can be performed by a known method such as dry etching using plasma gas and wet etching using an alkali solution, a cupric chloride solution, a ferric chloride solution or the like.
- Plating can also be performed after forming a resist pattern.
- Examples of the plating method include copper plating, solder plating, nickel plating, gold plating and the like.
- the remaining resist pattern after etching can be peeled off with an organic solvent.
- organic solvent include PGMEA (propylene glycol monomethyl ether acetate), PGME (propylene glycol monomethyl ether), EL (ethyl lactate) and the like.
- peeling method include an immersion method and a spray method.
- the wiring substrate on which the resist pattern is formed may be a multilayer wiring substrate, and may have a small diameter through hole.
- the wiring substrate obtained in the present embodiment can also be formed by a method of depositing a metal in vacuum after forming a resist pattern and thereafter dissolving the resist pattern with a solution, that is, a lift-off method.
- the resist film after irradiation was heated for 90 seconds at each predetermined temperature, and was developed by immersion for 60 seconds in an alkaline developer containing 2.38% by mass of tetramethylammonium hydroxide (TMAH). Thereafter, the resist film was washed with ultrapure water for 30 seconds and dried to form a positive resist pattern.
- the line and space of the created resist pattern are observed with a scanning electron microscope (SEM) (Hitachi High-Technologies Corporation product “S-4800”) to evaluate the reactivity and pattern formability of the resist composition by electron beam irradiation did. Based on the minimum amount of energy per unit area required to obtain a pattern, that is, the sensitivity, the reactivity was evaluated according to the following evaluation criteria.
- C A pattern was obtained at 50 ⁇ C / cm 2 or more
- the shape of the created pattern was observed by SEM, and the pattern formability was evaluated by the following evaluation criteria .
- ethylbenzene (reagent special grade manufactured by Wako Pure Chemical Industries, Ltd.) as a dilution solvent was added to the reaction liquid, and after standing, the lower aqueous phase was removed. Further, neutralization and washing with water were performed, and ethylbenzene and unreacted 1,5-dimethylnaphthalene were distilled off under reduced pressure to obtain 1.25 kg of a light brown solid dimethylnaphthalene formaldehyde resin.
- a 0.5 L four-necked flask equipped with a Dimroth condenser, a thermometer and a stirring blade was prepared.
- 100 g (0.51 mol) of dimethyl naphthalene formaldehyde resin obtained as described above and 0.05 g of para-toluenesulfonic acid are charged under a nitrogen stream, and the temperature is raised to 190 ° C. 2 After heating for a while, it was stirred. Thereafter, 52.0 g (0.36 mol) of 1-naphthol was further added, and the temperature was further raised to 220 ° C. for reaction for 2 hours.
- the solvent was diluted, neutralized and washed with water, and the solvent was removed under reduced pressure to obtain 126.1 g of a black-brown solid modified resin (CR-1).
- the fact that the modified resin was obtained was confirmed by the measurement result of 1 H-NMR.
- the molecular weight of the modified resin was Mn: 885, Mw: 2220, Mw / Mn: 4.17.
- Synthesis Example 1-2 Synthesis of CR-1-BOC
- 10 g of the compound (CR-1) obtained above and di-t-butyl dicarbonate A charge of 5.5 g (25 mmol) (manufactured by Aldrich) is added to 100 mL of acetone, 3.45 g (25 mmol) of potassium carbonate (manufactured by Aldrich) is added, and the contents are stirred at 20 ° C. for 6 hours to react. I got a liquid.
- reaction solution was concentrated, 100 g of pure water was added to the concentrate to precipitate a reaction product, and after cooling to room temperature, filtration was performed to separate a solid. The obtained solid was washed with water and dried under reduced pressure to obtain 4 g of a black solid modified resin (CR-1-BOC).
- Synthesis Example 4 Synthesis of TOX-4 Tetraethoxytellurium (IV) (Alpha Acer Co., Ltd. product, purity 85) dissolved in 20 mL of tetrahydrofuran in a container with an inner volume of 100 mL equipped with a stirrer, a condenser and a burette. %, 1.0 g (2.8 mmol) was added, and 0.5 g (5.8 mmol) of methacrylic acid was further added. After refluxing for 1 hour, the solvent was distilled off under reduced pressure to obtain 0.5 g of a compound represented by the following formula (TOX-4).
- TOX-4 Tetraethoxytellurium
- Tetraethoxy tellurium (IV) product of Alpha Acer Co., purity 85%
- the compounds synthesized in Synthesis Examples 2 to 4 and naphthol modified resin (CR-1) synthesized in Synthesis Example 1-1 acid generation Agent (Midori Chemical Co., Ltd. product, triphenylsulfonium trifluoromethanesulfonate), acid crosslinker (Sanwa Co., Ltd. chemical product "Nicalac MX 270”), acid diffusion control agent (Tokyo Chemical Industry Co., Ltd. product, trioctylamine And solvents (Tokyo Chemical Industry Co., Ltd.
- Tetraethoxy tellurium (IV) product of Alpha Acer Co., purity 85%
- compounds synthesized in Synthesis Examples 2 to 4 and naphthol-modified resin (CR-1-BOC) synthesized in Synthesis Example 1-2 Acid generator (Midori Chemical Co., Ltd. product, triphenylsulfonium trifluoromethanesulfonate), acid diffusion controller (Tokyo Chemical Industry Co., Ltd. product, trioctylamine), and solvent (Tokyo Chemical Industry Co., Ltd.
- the resist compositions of Examples 7 to 12 and Comparative Example 2 were prepared at the blending amounts shown in Table 2 (the numerical values in the table indicate parts by mass) of monomethyl ether acetate).
- the above (1) to (4) were evaluated for each of the prepared resist compositions.
- the solubility of the compound A and CR-1-BOC constituting the compositions of Examples 7 to 12 and the dissolution of CR-1-BOC constituting the composition of Comparative Example 2 The sex was evaluated. The evaluation results are shown in Table 5.
- Examples 7 to 10 a good positive resist pattern (Method A), and in Examples 7 to 12, a good negative resist pattern (Method A) by irradiating an electron beam with a 1: 1 line and space setting at intervals of 50 nm. Method B) is obtained.
- the resist compositions obtained in Examples 7 to 12 were both excellent in reactivity and pattern formation.
- the compound of the present embodiment has high solubility in a safe solvent, and the resist composition containing this compound is excellent in storage stability, film forming property, high sensitivity, and pattern forming property.
- high sensitivity and pattern formability were confirmed to be superior to the compositions of Comparative Examples 1 and 2.
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Abstract
Description
下記式(1)で表わされる化合物を含有するリソグラフィー用組成物。
[LxTe(OR1)y] (1)
(上記式(1)中、Lは、OR1以外の配位子であり、R1は、水素原子、置換又は無置換の炭素数1~20の直鎖状又は炭素数3~20の分岐状若しくは環状のアルキル基、置換又は無置換の炭素数6~20のアリール基、及び置換又は無置換の炭素数2~20のアルケニル基のいずれかであり、xは、0~6の整数であり、yは、0~6の整数であり、xとyの合計は、1~6であり、xが2以上である場合、複数のLは同一でも異なっていてもよく、yが2以上である場合、複数のR1は同一でも異なっていてもよい。)
〔2〕
上記式(1)で表わされる化合物において、xが1~6の整数である、〔1〕のリソグラフィー用組成物。
〔3〕
上記式(1)で表わされる化合物において、yが1~6の整数である、〔1〕又は〔2〕のリソグラフィー用組成物。
〔4〕
上記式(1)で表わされる化合物において、R1が、置換又は無置換の炭素数1~6の直鎖状又は炭素数3~6の分岐状若しくは環状のアルキル基である、〔1〕~〔3〕のいずれかのリソグラフィー用組成物。
〔5〕
上記式(1)で表わされる化合物において、Lが、二座以上の配位子である、〔1〕~〔4〕のいずれかのリソグラフィー用組成物。
〔6〕
上記式(1)で表わされる化合物において、Lがアセチルアセトナート、2,2-ジメチル-3,5-ヘキサンジオン、エチレンジアミン、ジエチレントリアミン、及びメタクリル酸のいずれかである、〔1〕~〔5〕のいずれかのリソグラフィー用組成物。
〔7〕
レジスト用である、〔1〕~〔6〕のいずれかのリソグラフィー用組成物。
〔8〕
溶媒をさらに含む、〔1〕~〔7〕のいずれかのリソグラフィー用組成物。
〔9〕
酸発生剤をさらに含む、〔1〕~〔8〕のいずれかのリソグラフィー用組成物。
〔10〕
酸拡散制御剤をさらに含む、〔1〕~〔9〕のいずれかのリソグラフィー用組成物。
〔11〕
重合開始剤をさらに含む、〔1〕~〔10〕のいずれかのリソグラフィー用組成物。
〔12〕
〔1〕~〔11〕のいずれかのリソグラフィー用組成物を用いて基板上にレジスト膜を形成する工程と、
前記レジスト膜を露光する工程と、
前記露光したレジスト膜を現像してパターンを形成する工程と、
を含むパターン形成方法。
〔13〕
下記式(1)で表わされる化合物。
[LxTe(OR1)y] (1)
(上記式(1)中、Lは、OR1以外の配位子であり、R1は、水素原子、置換又は無置換の炭素数1~20の直鎖状又は炭素数3~20の分岐状若しくは環状のアルキル基、置換又は無置換の炭素数6~20のアリール基、及び置換又は無置換の炭素数2~20のアルケニル基のいずれかであり、xは、0~6の整数であり、yは、0~6の整数であり、xとyの合計は、1~6であり、xが2以上である場合、複数のLは同一でも異なっていてもよく、yが2以上である場合、複数のR1は同一でも異なっていてもよい。)
本実施形態の化合物は、下記式(1)で表わされる化合物(「テルル含有化合物」ともいう。)である。
[LxTe(OR1)y] (1)
Te(OEt)4 (TOX-1)
本実施形態のリソグラフィー用組成物は、前記式(1)で表わされる化合物を含有する。本実施形態において、リソグラフィー用組成物中の成分の含有量、組成などを調整することにより、後述のレジスト用などの多層プロセスに利用できる。本実施形態のリソグラフィー用組成物は、本実施形態のテルル含有化合物を含むため、優れた成膜性、高感度性、パターン形成性、及び保存安定性をバランスよく満たすことができる。
本実施形態のリソグラフィー用組成物(例えば、レジスト用組成物)は、溶媒を含有することが好ましい。溶媒としては、特に限定されないが、例えば、エチレングリコールモノメチルエーテルアセテート、エチレングリコールモノエチルエーテルアセテート、エチレングリコールモノ-n-プロピルエーテルアセテート、エチレングリコールモノ-n-ブチルエーテルアセテート等のエチレングリコールモノアルキルエーテルアセテート類;エチレングリコールモノメチルエーテル、エチレングリコールモノエチルエーテルなどのエチレングリコールモノアルキルエーテル類;プロピレングリコールモノメチルエーテルアセテート(PGMEA)、プロピレングリコールモノエチルエーテルアセテート、プロピレングリコールモノ-n-プロピルエーテルアセテート、プロピレングリコールモノ-n-ブチルエーテルアセテート等のプロピレングリコールモノアルキルエーテルアセテート類;プロピレングリコールモノメチルエーテル(PGME)、プロピレングリコールモノエチルエーテルなどのプロピレングリコールモノアルキルエーテル類;乳酸メチル、乳酸エチル、乳酸n-プロピル、乳酸n-ブチル、乳酸n-アミル等の乳酸エステル類;酢酸メチル、酢酸エチル、酢酸n-プロピル、酢酸n-ブチル、酢酸n-アミル、酢酸n-ヘキシル、プロピオン酸メチル、プロピオン酸エチル等の脂肪族カルボン酸エステル類;3-メトキシプロピオン酸メチル、3-メトキシプロピオン酸エチル、3-エトキシプロピオン酸メチル、3-エトキシプロピオン酸エチル、3-メトキシ-2-メチルプロピオン酸メチル、3-メトキシブチルアセテート、3-メチル-3-メトキシブチルアセテート、3-メトキシ-3-メチルプロピオン酸ブチル、3-メトキシ-3-メチル酪酸ブチル、アセト酢酸メチル、ピルビン酸メチル、ピルビン酸エチル等の他のエステル類;トルエン、キシレン等の芳香族炭化水素類;2-ヘプタノン、3-ヘプタノン、4-ヘプタノン、シクロペンタノン(CPN)、シクロヘキサノン(CHN)等のケトン類;N,N-ジメチルホルムアミド、N-メチルアセトアミド、N,N-ジメチルアセトアミド、N-メチルピロリドン等のアミド類;γ-ラクトン等のラクトン類等を挙げることができるが、特に限定はされない。これらの溶媒は、1種を単独で、又は2種以上を組み合わせて用いることができる。
本実施形態のリソグラフィー用組成物(例えば、レジスト用組成物)は、放射線(例えば、EUV)の照射により、直接的又は間接的に酸を発生可能な酸発生剤を含有することが好ましい。酸発生剤を含有することにより、より一層優れた高感度性及び低エッジラフネスのパターンンプロファイルが得られる傾向にある。
本実施形態のリソグラフィー用組成物は、酸発生剤から発生した酸の存在したで、後述する化合物及び/又は樹脂を分子内又は分子間架橋するために酸架橋剤を含有することが好ましい。酸架橋剤としては、例えば、樹脂を架橋し得る1種以上の架橋性基を含有する化合物(架橋性基含有化合物)を含有する。
本実施形態のリソグラフィー用組成物は、放射線照射により酸発生剤から生じた酸のレジスト膜中における拡散を制御して、未露光領域での好ましくない化学反応を阻止する観点から、酸拡散制御剤を含有することが好ましい。本実施形態のリソグラフィー用組成物が酸拡散制御剤を含有することにより、リソグラフィー用組成物(特にレジスト組成物)の貯蔵安定性がより一層向上する傾向にある。また、解像度がより一層向上するとともに、放射線照射前の引き置き時間、放射線照射後の引き置き時間の変動によるレジストパターンの線幅変化をより一層抑えることができ、プロセス安定性により一層優れたものとなる傾向にある。
本実施形態のリソグラフィー用組成物は、本発明の作用効果を阻害しない範囲で、その他の成分(以下、「任意成分」ともいう)を含有してもよい。その他の成分としては、溶解促進剤、溶解制御剤、重合開始剤、増感剤、界面活性剤、及び有機カルボン酸又はリンのオキソ酸若しくはその誘導体などが挙げられ、より詳細には、国際公開2013/024778号の段落0144~0150に記載されているものが挙げられる。本明細書にいう「その他の成分」は、リソグラフィー用材料として用いる上述の化合物及び樹脂、酸発生剤、酸架橋剤、及び酸拡散制御剤を除く成分をいう。
本実施形態のリソグラフィー用組成物(例えば、レジスト用組成物)において、リソグラフィー用基材(例えば、レジスト基材)として用いる化合物及び/又は樹脂の含有量は、特に限定されないが、固形成分の全質量(レジスト基材、酸発生剤(P)、酸架橋剤(C)、酸拡散制御剤(Q)、及びその他の成分(E)などの任意に使用される成分を含む固形成分の総質量の1~99質量%であることが好ましく、より好ましくは2~90質量%、さらに好ましくは5~80質量%、特に好ましくは10~70質量%である。含有量が上記範囲内であることにより、解像度がより一層向上し、ラインエッジラフネス(LER)がより一層小さくなる傾向にある。
本実施形態のレジスト組成物は、スピンコートによりアモルファス膜を形成することができる。また、一般的な半導体製造プロセスに適用することができる。
本実施形態のパターン形成方法(レジストパターンの形成方法)は、本実施形態のリソグラフィー用組成物(レジスト組成物)を用いて基板上にレジスト膜を形成する工程と、形成されたレジスト膜を露光する工程と、露光したレジスト膜を現像してパターン(レジストパターン)を形成する工程とを備える。本実施形態のレジストパターンは、多層プロセスにおける上層レジストとして形成することもできる。
(1)化合物の構造
化合物の構造は、Bruker社製品「Advance600II spectrometer」を用いて、以下の条件で、1H-NMR測定を行い、確認した。
周波数:400MHz
溶媒:CDCl3
内部標準:TMS
測定温度:23℃
(1)溶解性評価(化合物の安全溶媒溶解度試験評価)
プロピレングリコールモノメチルエーテルアセテート(PGMEA)への室温(23℃)における溶解性を以下の評価基準により評価した。化合物を、試験管に精秤し、PGMEAを所定の濃度となるよう加え、超音波洗浄機にて30分間超音波をかけ、その後の液の状態を目視にて観察した。表中、実施例1~4の溶解性評価は、化合物A単独の溶解性評価に相当し、比較例1の溶解性評価は、CR-1単独の溶解性評価に相当する。
A:溶解量が5.0質量%以上であった
B:溶解量が3.0質量%以上5.0質量%未満であった
C:溶解量が3.0質量%未満であった
23℃、50%RHにてレジスト組成物を3日間静置し、析出の有無を目視にて観察することにより保存安定性を以下の評価基準により評価した。
A:均一溶液であり、析出がなかった
C:析出がみられた
調製直後の均一状態のレジスト組成物を清浄なシリコンウェハー上に回転塗布し、さらに110℃のオーブン中で露光前ベーク(PB)して、厚さ40nmのレジスト膜を作成した。作成したレジスト膜の外観を以下の評価基準により評価した。評価がAである場合には、成膜性が優れていることを示す。
A:形成された膜に大きな欠陥が見られなかった
C:形成された膜に大きな欠陥が見られた
調製直後の均一状態のレジスト組成物を清浄なシリコンウェハー上に回転塗布し、さらに110℃のオーブン中で露光前ベーク(PB)して、厚さ60nmのレジスト膜を作成した。作成したレジスト膜に対して、電子線描画装置((株)エリオニクス社製品「ELS-7500」)を用いて、50nm、40nm及び30nm間隔の1:1のラインアンドスペース設定の電子線を照射した。照射後のレジスト膜を、それぞれ所定の温度で、90秒間加熱し、水酸化テトラメチルアンモニウム(TMAH)を2.38質量%含有するアルカリ現像液に60秒間浸漬して現像した。その後、レジスト膜を、超純水で30秒間洗浄、乾燥して、ポジ型のレジストパターンを作成した。作成したレジストパターンのラインアンドスペースを走査型電子顕微鏡(SEM)(日立ハイテクノロジー(株)製品「S-4800」)により観察し、レジスト組成物の電子線照射による反応性及びパターン形成性を評価した。
パターンを得るために必要な単位面積当たりの最小のエネルギー量、すなわち感度に基づき、以下の評価基準にて反応性を評価した。
A:50μC/cm2未満でパターンが得られた
C:50μC/cm2以上でパターンが得られた
作成したパターンの形状をSEMにて観察し、以下の評価基準にてパターン形成性を評価した。
A:矩形なパターンが得られた
B:ほぼ矩形なパターンが得られた
C:矩形でないパターンが得られた
前述の、レジスト組成物の反応性及びパターン形成性評価(方法A)の、水酸化テトラメチルアンモニウム(TMAH)を2.38質量%含有するアルカリ現像液に代えて、酢酸n-ブチルを用いる他は同様の方法でパターン形成性を評価した。
ジムロート冷却管、温度計及び攪拌翼を備え、底抜き可能な内容積10Lの四つ口フラスコを準備した。この四つ口フラスコに、窒素気流中、1,5-ジメチルナフタレン1.09kg(7mol、三菱ガス化学(株)製)、40質量%ホルマリン水溶液2.1kg(ホルムアルデヒドとして28mol、三菱ガス化学(株)製)及び98質量%硫酸(関東化学(株)製)0.97mLを仕込み、常圧下、100℃で還流させながら7時間反応させた。その後、希釈溶媒としてエチルベンゼン(和光純薬工業(株)製試薬特級)1.8kgを反応液に加え、静置後、下相の水相を除去した。さらに、中和及び水洗を行い、エチルベンゼン及び未反応の1,5-ジメチルナフタレンを減圧下で留去することにより、淡褐色固体のジメチルナフタレンホルムアルデヒド樹脂1.25kgを得た。
攪拌機、冷却管及びビュレットを備えた内容積200mLの容器において、前記得られた化合物(CR-1)10gとジ-t-ブチルジカーボネート(アルドリッチ社製)5.5g(25mmol)とをアセトン100mLに仕込み、炭酸カリウム(アルドリッチ社製)3.45g(25mmol)を加えて、内容物を20℃で6時間撹拌して反応を行って反応液を得た。次に反応液を濃縮し、濃縮液に純水100gを加えて反応生成物を析出させ、室温まで冷却した後、濾過を行って固形物を分離した。
得られた固形物を水洗し、減圧乾燥させ、黒色固体の変性樹脂(CR-1-BOC)を4g得た。
攪拌機、冷却管、及びビュレットを備えた内容積100mLの容器に、20mLのテトラヒドロフランに溶解させたテトラエトキシテルル(IV)(アルファエイサー(株)製品、純度85%)1.0g(2.8mmol)を入れ、5mLのテトラヒドロフランに溶解させたアセチルアセトン0.6g(6.0mmol)をさらに加えた。1時間還流させた後、溶媒を減圧留去することにより、以下の式(TOX-2)で表される化合物0.6gを得た。
攪拌機、冷却管、及びビュレットを備えた内容積100mLの容器に、20mLのテトラヒドロフランに溶解させたテトラエトキシテルル(IV)(アルファエイサー(株)製品、純度85%)1.0g(2.8mmol)を入れ、5mLのテトラヒドロフランに溶解させた2,2-ジメチル-3,5-ヘキサンジオン0.8g(5.6mmol)をさらに加えた。1時間還流させた後、溶媒を減圧留去することにより、以下の式(TOX-3)で表される化合物0.7gを得た。
攪拌機、冷却管、及びビュレットを備えた内容積100mLの容器に、20mLのテトラヒドロフランに溶解させたテトラエトキシテルル(IV)(アルファエイサー(株)製品、純度85%)1.0g(2.8mmol)を入れ、さらにメタクリル酸0.5g(5.8mmol)をさらに加えた。1時間還流させた後、溶媒を減圧留去することにより、以下の式(TOX-4)で表される化合物0.5gを得た。
テトラエトキシテルル(IV)(アルファエイサー(株)製品、純度85%)、及び合成例2~4で合成した化合物と、合成例1-1で合成したナフトール変性樹脂(CR-1)、酸発生剤(みどり化学(株)製品、トリフェニルスルホニウムトリフルオロメタンスルホネート)、酸架橋剤(三和(株)ケミカル製品「ニカラックMX270」)、酸拡散制御剤(東京化成工業(株)製品、トリオクチルアミン)、及び溶媒(東京化成工業(株)製品、プロピレングリコールモノメチルエーテルアセテート)を下記表1(表中、数値は質量部を示す)に示す配合量にて、実施例1~6及び比較例1のレジスト組成物を調製した。調製した各レジスト組成物について上記(1)~(3)の評価を行った。但し、上記(1)の評価については、実施例1~6の組成物を構成する化合物A及びCR-1の溶解性、比較例1の組成物を構成するCR-1の溶解性の評価を行った。評価結果を表4に示す。
テトラエトキシテルル(IV)(アルファエイサー(株)製品、純度85%)、及び合成例2~4で合成した化合物と、合成例1-2で合成したナフトール変性樹脂(CR-1-BOC)、酸発生剤(みどり化学(株)製品、トリフェニルスルホニウムトリフルオロメタンスルホネート)、酸拡散制御剤(東京化成工業(株)製品、トリオクチルアミン)、及び溶媒(東京化成工業(株)製品、プロピレングリコールモノメチルエーテルアセテート)を下記表2(表中、数値は質量部を示す)に示す配合量にて、実施例7~12及び比較例2のレジスト組成物を調製した。調製した各レジスト組成物について上記(1)~(4)の評価を行った。但し、上記(1)の評価については、実施例7~12の組成物を構成する化合物A及びCR-1-BOCの溶解性、比較例2の組成物を構成するCR-1-BOCの溶解性の評価を行った。評価結果を表5に示す。
Claims (13)
- 下記式(1)で表わされる化合物を含有するリソグラフィー用組成物。
[LxTe(OR1)y] (1)
(上記式(1)中、Lは、OR1以外の配位子であり、R1は、水素原子、置換又は無置換の炭素数1~20の直鎖状又は炭素数3~20の分岐状若しくは環状のアルキル基、置換又は無置換の炭素数6~20のアリール基、及び置換又は無置換の炭素数2~20のアルケニル基のいずれかであり、xは、0~6の整数であり、yは、0~6の整数であり、xとyの合計は、1~6であり、xが2以上である場合、複数のLは同一でも異なっていてもよく、yが2以上である場合、複数のR1は同一でも異なっていてもよい。) - 上記式(1)で表わされる化合物において、xが1~6の整数である、請求項1に記載のリソグラフィー用組成物。
- 上記式(1)で表わされる化合物において、yが1~6の整数である、請求項1又は2に記載のリソグラフィー用組成物。
- 上記式(1)で表わされる化合物において、R1が、置換又は無置換の炭素数1~6の直鎖状又は炭素数3~6の分岐状若しくは環状のアルキル基である、請求項1~3のいずれか1項に記載のリソグラフィー用組成物。
- 上記式(1)で表わされる化合物において、Lが、二座以上の配位子である、請求項1~4のいずれか1項に記載のリソグラフィー用組成物。
- 上記式(1)で表わされる化合物において、Lがアセチルアセトナート、2,2-ジメチル-3,5-ヘキサンジオン、エチレンジアミン、ジエチレントリアミン、及びメタクリル酸のいずれかである、請求項1~5のいずれか1項に記載のリソグラフィー用組成物。
- レジスト用である、請求項1~6のいずれか1項に記載のリソグラフィー用組成物。
- 溶媒をさらに含む、請求項1~7のいずれか1項に記載のリソグラフィー用組成物。
- 酸発生剤をさらに含む、請求項1~8のいずれか1項に記載のリソグラフィー用組成物。
- 酸拡散制御剤をさらに含む、請求項1~9のいずれか1項に記載のリソグラフィー用組成物。
- 重合開始剤をさらに含む、請求項1~10のいずれか1項に記載のリソグラフィー用組成物。
- 請求項1~11のいずれか1項に記載のリソグラフィー用組成物を用いて基板上にレジスト膜を形成する工程と、
前記レジスト膜を露光する工程と、
前記露光したレジスト膜を現像してパターンを形成する工程と、
を含むパターン形成方法。 - 下記式(1)で表わされる化合物。
[LxTe(OR1)y] (1)
(上記式(1)中、Lは、OR1以外の配位子であり、R1は、水素原子、置換又は無置換の炭素数1~20の直鎖状又は炭素数3~20の分岐状若しくは環状のアルキル基、置換又は無置換の炭素数6~20のアリール基、及び置換又は無置換の炭素数2~20のアルケニル基のいずれかであり、xは、0~6の整数であり、yは、0~6の整数であり、xとyの合計は、1~6であり、xが2以上である場合、複数のLは同一でも異なっていてもよく、yが2以上である場合、複数のR1は同一でも異なっていてもよい。)
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KR1020207008802A KR20200054998A (ko) | 2017-09-29 | 2018-09-28 | 리소그래피용 조성물, 패턴 형성방법, 및 화합물 |
JP2019545152A JP7297256B2 (ja) | 2017-09-29 | 2018-09-28 | リソグラフィー用組成物、パターン形成方法、及び化合物 |
EP18860506.7A EP3690547A4 (en) | 2017-09-29 | 2018-09-28 | COMPOSITION FOR LITHOGRAPHY, PATTERN FORMATION PROCESS AND COMPOUND |
CN201880063602.8A CN111164511A (zh) | 2017-09-29 | 2018-09-28 | 光刻用组合物、图案形成方法和化合物 |
US16/651,616 US20200257195A1 (en) | 2017-09-29 | 2018-09-28 | Composition for lithography, pattern formation method, and compound |
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US (1) | US20200257195A1 (ja) |
EP (1) | EP3690547A4 (ja) |
JP (1) | JP7297256B2 (ja) |
KR (1) | KR20200054998A (ja) |
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Cited By (7)
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WO2019208763A1 (ja) * | 2018-04-27 | 2019-10-31 | 三菱瓦斯化学株式会社 | 光学部品形成組成物、及びその硬化物 |
JP2021005115A (ja) * | 2017-12-31 | 2021-01-14 | ローム アンド ハース エレクトロニック マテリアルズ エルエルシーRohm and Haas Electronic Materials LLC | モノマー、ポリマーおよびこれを含むリソグラフィ組成物 |
WO2021029224A1 (ja) * | 2019-08-13 | 2021-02-18 | Jsr株式会社 | レジストパターン形成方法及び上層膜形成用組成物 |
EP3757678A4 (en) * | 2018-04-27 | 2021-05-05 | Mitsubishi Gas Chemical Company, Inc. | RESIST SUBLAYER FILM-FORMING COMPOSITION AND METHOD FOR PREPARING PATTERNS |
EP3786710A4 (en) * | 2018-04-27 | 2021-06-23 | Mitsubishi Gas Chemical Company, Inc. | COMPOSITION FORMING RESIST UNDERLAYER FILM, UNDERLAYER FILM FOR LITHOGRAPHY AND PATTERN MAKING METHOD |
WO2023214589A1 (ja) * | 2022-05-02 | 2023-11-09 | 学校法人 関西大学 | テルルを含有するポリマーおよび化合物 |
JP7596393B2 (ja) | 2020-09-17 | 2024-12-09 | 富士フイルム株式会社 | 感光性転写材料、樹脂パターンの製造方法、回路配線の製造方法、及び、タッチパネルの製造方法 |
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DE102019133965A1 (de) * | 2019-08-28 | 2021-03-04 | Taiwan Semiconductor Manufacturing Co., Ltd. | Euv-fotoresist mit liganden mit niedriger aktivierungsenergie oder liganden mit hoher entwicklerlöslichkeit |
US11681221B2 (en) | 2019-08-28 | 2023-06-20 | Taiwan Semiconductor Manufacturing Co., Ltd. | EUV photoresist with low-activation-energy ligands or high-developer-solubility ligands |
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Citations (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61226745A (ja) | 1985-03-30 | 1986-10-08 | Japan Synthetic Rubber Co Ltd | 半導体集積回路製造用のスピンコート用レジスト組成物 |
JPS61226746A (ja) | 1985-03-30 | 1986-10-08 | Japan Synthetic Rubber Co Ltd | 半導体集積回路製造用のスピンコート用レジスト組成物 |
JPS6236663A (ja) | 1985-08-12 | 1987-02-17 | Mitsubishi Chem Ind Ltd | ナフトキノンジアジド系化合物及び該化合物を含有するポジ型フオトレジスト組成物 |
JPS62170950A (ja) | 1986-01-23 | 1987-07-28 | Fuji Photo Film Co Ltd | 感光性組成物 |
JPS6334540A (ja) | 1986-07-30 | 1988-02-15 | Mitsubishi Chem Ind Ltd | ポジ型フオトレジスト組成物 |
US5294511A (en) | 1990-01-16 | 1994-03-15 | Fuji Photo Film Co., Ltd. | Photosensitive composition |
US5296330A (en) | 1991-08-30 | 1994-03-22 | Ciba-Geigy Corp. | Positive photoresists containing quinone diazide photosensitizer, alkali-soluble resin and tetra(hydroxyphenyl) alkane additive |
US5360692A (en) | 1992-06-04 | 1994-11-01 | Fuji Photo Film Co., Ltd. | Positive type 1,2-naphthoquinonediazide photoresist composition containing benzotriazole light absorbing agent |
US5405720A (en) | 1985-08-07 | 1995-04-11 | Japan Synthetic Rubber Co., Ltd. | Radiation-sensitive composition containing 1,2 quinonediazide compound, alkali-soluble resin and monooxymonocarboxylic acid ester solvent |
JPH07230165A (ja) | 1993-06-30 | 1995-08-29 | Tokyo Ohka Kogyo Co Ltd | ポジ型ホトレジスト組成物 |
JPH0862834A (ja) | 1994-08-22 | 1996-03-08 | Mitsubishi Chem Corp | フォトレジスト組成物 |
US5529881A (en) | 1994-03-17 | 1996-06-25 | Fuji Photo Film Co., Ltd. | Postive photoresist composition |
US5576143A (en) | 1991-12-03 | 1996-11-19 | Fuji Photo Film Co., Ltd. | Light-sensitive composition |
JPH095988A (ja) | 1995-06-21 | 1997-01-10 | Mitsubishi Chem Corp | 感放射線性塗布組成物 |
JPH0954432A (ja) | 1995-08-18 | 1997-02-25 | Dainippon Ink & Chem Inc | フォトレジスト組成物 |
US5824451A (en) | 1994-07-04 | 1998-10-20 | Fuji Photo Film Co., Ltd. | Positive photosensitive composition |
JPH11160874A (ja) * | 1997-08-14 | 1999-06-18 | Mitsubishi Materials Corp | 貯蔵安定性のある金属アリールケトンアルコレート溶液と薄膜の光開始パターン化におけるその用途 |
JP2005326838A (ja) | 2004-04-15 | 2005-11-24 | Mitsubishi Gas Chem Co Inc | レジスト組成物 |
JP2008145539A (ja) | 2006-12-06 | 2008-06-26 | Mitsubishi Gas Chem Co Inc | 感放射線性レジスト組成物 |
JP2009173623A (ja) | 2007-04-23 | 2009-08-06 | Mitsubishi Gas Chem Co Inc | 感放射線性組成物 |
WO2013024778A1 (ja) | 2011-08-12 | 2013-02-21 | 三菱瓦斯化学株式会社 | レジスト組成物、レジストパターン形成方法、それに用いるポリフェノール化合物及びそれから誘導され得るアルコール化合物 |
JP2015075500A (ja) | 2013-10-04 | 2015-04-20 | 信越化学工業株式会社 | レジスト材料及びこれを用いたパターン形成方法 |
JP2015108781A (ja) | 2013-12-05 | 2015-06-11 | 東京応化工業株式会社 | ネガ型レジスト組成物、レジストパターン形成方法及び錯体 |
WO2017033943A1 (ja) * | 2015-08-24 | 2017-03-02 | 学校法人関西大学 | リソグラフィー用材料及びその製造方法、リソグラフィー用組成物、パターン形成方法、並びに、化合物、樹脂、及びこれらの精製方法 |
US20170242337A1 (en) * | 2016-02-19 | 2017-08-24 | Jsr Corporation | Radiation-sensitive composition and pattern-forming method |
US20170242336A1 (en) * | 2016-02-19 | 2017-08-24 | Jsr Corporation | Radiation-sensitive composition and pattern-forming method |
JP2017189340A (ja) | 2016-04-13 | 2017-10-19 | ローランドディー.ジー.株式会社 | 人工歯作製装置 |
WO2018117167A1 (ja) * | 2016-12-21 | 2018-06-28 | 東洋合成工業株式会社 | 感光性化合物、該感光性化合物を含有する光酸発生剤及びレジスト組成物、並びに、該レジスト組成物を用いたデバイスの製造方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005128049A (ja) * | 2003-10-21 | 2005-05-19 | Jsr Corp | 感放射線性樹脂組成物 |
KR101943347B1 (ko) * | 2014-09-02 | 2019-01-29 | 후지필름 가부시키가이샤 | 감활성광선성 또는 감방사선성 수지 조성물, 감활성광선성 또는 감방사선성막, 패턴 형성 방법, 및 전자 디바이스의 제조 방법 |
-
2018
- 2018-09-28 US US16/651,616 patent/US20200257195A1/en not_active Abandoned
- 2018-09-28 KR KR1020207008802A patent/KR20200054998A/ko not_active Withdrawn
- 2018-09-28 WO PCT/JP2018/036344 patent/WO2019066000A1/ja unknown
- 2018-09-28 TW TW107134487A patent/TW201923451A/zh unknown
- 2018-09-28 JP JP2019545152A patent/JP7297256B2/ja active Active
- 2018-09-28 CN CN201880063602.8A patent/CN111164511A/zh active Pending
- 2018-09-28 EP EP18860506.7A patent/EP3690547A4/en not_active Withdrawn
Patent Citations (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61226746A (ja) | 1985-03-30 | 1986-10-08 | Japan Synthetic Rubber Co Ltd | 半導体集積回路製造用のスピンコート用レジスト組成物 |
JPS61226745A (ja) | 1985-03-30 | 1986-10-08 | Japan Synthetic Rubber Co Ltd | 半導体集積回路製造用のスピンコート用レジスト組成物 |
US5405720A (en) | 1985-08-07 | 1995-04-11 | Japan Synthetic Rubber Co., Ltd. | Radiation-sensitive composition containing 1,2 quinonediazide compound, alkali-soluble resin and monooxymonocarboxylic acid ester solvent |
JPS6236663A (ja) | 1985-08-12 | 1987-02-17 | Mitsubishi Chem Ind Ltd | ナフトキノンジアジド系化合物及び該化合物を含有するポジ型フオトレジスト組成物 |
JPS62170950A (ja) | 1986-01-23 | 1987-07-28 | Fuji Photo Film Co Ltd | 感光性組成物 |
JPS6334540A (ja) | 1986-07-30 | 1988-02-15 | Mitsubishi Chem Ind Ltd | ポジ型フオトレジスト組成物 |
US5294511A (en) | 1990-01-16 | 1994-03-15 | Fuji Photo Film Co., Ltd. | Photosensitive composition |
US5296330A (en) | 1991-08-30 | 1994-03-22 | Ciba-Geigy Corp. | Positive photoresists containing quinone diazide photosensitizer, alkali-soluble resin and tetra(hydroxyphenyl) alkane additive |
US5436098A (en) | 1991-08-30 | 1995-07-25 | Ciba-Geigy Corporation | Positive photoresists with enhanced resolution and reduced crystallization containing novel tetra(hydroxyphenyl)alkanes |
US5576143A (en) | 1991-12-03 | 1996-11-19 | Fuji Photo Film Co., Ltd. | Light-sensitive composition |
US5360692A (en) | 1992-06-04 | 1994-11-01 | Fuji Photo Film Co., Ltd. | Positive type 1,2-naphthoquinonediazide photoresist composition containing benzotriazole light absorbing agent |
JPH07230165A (ja) | 1993-06-30 | 1995-08-29 | Tokyo Ohka Kogyo Co Ltd | ポジ型ホトレジスト組成物 |
US5529881A (en) | 1994-03-17 | 1996-06-25 | Fuji Photo Film Co., Ltd. | Postive photoresist composition |
US5824451A (en) | 1994-07-04 | 1998-10-20 | Fuji Photo Film Co., Ltd. | Positive photosensitive composition |
JPH0862834A (ja) | 1994-08-22 | 1996-03-08 | Mitsubishi Chem Corp | フォトレジスト組成物 |
JPH095988A (ja) | 1995-06-21 | 1997-01-10 | Mitsubishi Chem Corp | 感放射線性塗布組成物 |
JPH0954432A (ja) | 1995-08-18 | 1997-02-25 | Dainippon Ink & Chem Inc | フォトレジスト組成物 |
JPH11160874A (ja) * | 1997-08-14 | 1999-06-18 | Mitsubishi Materials Corp | 貯蔵安定性のある金属アリールケトンアルコレート溶液と薄膜の光開始パターン化におけるその用途 |
JP2005326838A (ja) | 2004-04-15 | 2005-11-24 | Mitsubishi Gas Chem Co Inc | レジスト組成物 |
JP2008145539A (ja) | 2006-12-06 | 2008-06-26 | Mitsubishi Gas Chem Co Inc | 感放射線性レジスト組成物 |
JP2009173623A (ja) | 2007-04-23 | 2009-08-06 | Mitsubishi Gas Chem Co Inc | 感放射線性組成物 |
WO2013024778A1 (ja) | 2011-08-12 | 2013-02-21 | 三菱瓦斯化学株式会社 | レジスト組成物、レジストパターン形成方法、それに用いるポリフェノール化合物及びそれから誘導され得るアルコール化合物 |
JP2015075500A (ja) | 2013-10-04 | 2015-04-20 | 信越化学工業株式会社 | レジスト材料及びこれを用いたパターン形成方法 |
JP2015108781A (ja) | 2013-12-05 | 2015-06-11 | 東京応化工業株式会社 | ネガ型レジスト組成物、レジストパターン形成方法及び錯体 |
WO2017033943A1 (ja) * | 2015-08-24 | 2017-03-02 | 学校法人関西大学 | リソグラフィー用材料及びその製造方法、リソグラフィー用組成物、パターン形成方法、並びに、化合物、樹脂、及びこれらの精製方法 |
US20170242337A1 (en) * | 2016-02-19 | 2017-08-24 | Jsr Corporation | Radiation-sensitive composition and pattern-forming method |
US20170242336A1 (en) * | 2016-02-19 | 2017-08-24 | Jsr Corporation | Radiation-sensitive composition and pattern-forming method |
JP2017189340A (ja) | 2016-04-13 | 2017-10-19 | ローランドディー.ジー.株式会社 | 人工歯作製装置 |
WO2018117167A1 (ja) * | 2016-12-21 | 2018-06-28 | 東洋合成工業株式会社 | 感光性化合物、該感光性化合物を含有する光酸発生剤及びレジスト組成物、並びに、該レジスト組成物を用いたデバイスの製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3690547A4 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2021005115A (ja) * | 2017-12-31 | 2021-01-14 | ローム アンド ハース エレクトロニック マテリアルズ エルエルシーRohm and Haas Electronic Materials LLC | モノマー、ポリマーおよびこれを含むリソグラフィ組成物 |
WO2019208763A1 (ja) * | 2018-04-27 | 2019-10-31 | 三菱瓦斯化学株式会社 | 光学部品形成組成物、及びその硬化物 |
EP3757678A4 (en) * | 2018-04-27 | 2021-05-05 | Mitsubishi Gas Chemical Company, Inc. | RESIST SUBLAYER FILM-FORMING COMPOSITION AND METHOD FOR PREPARING PATTERNS |
EP3786710A4 (en) * | 2018-04-27 | 2021-06-23 | Mitsubishi Gas Chemical Company, Inc. | COMPOSITION FORMING RESIST UNDERLAYER FILM, UNDERLAYER FILM FOR LITHOGRAPHY AND PATTERN MAKING METHOD |
WO2021029224A1 (ja) * | 2019-08-13 | 2021-02-18 | Jsr株式会社 | レジストパターン形成方法及び上層膜形成用組成物 |
JP7596393B2 (ja) | 2020-09-17 | 2024-12-09 | 富士フイルム株式会社 | 感光性転写材料、樹脂パターンの製造方法、回路配線の製造方法、及び、タッチパネルの製造方法 |
WO2023214589A1 (ja) * | 2022-05-02 | 2023-11-09 | 学校法人 関西大学 | テルルを含有するポリマーおよび化合物 |
Also Published As
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TW201923451A (zh) | 2019-06-16 |
KR20200054998A (ko) | 2020-05-20 |
EP3690547A1 (en) | 2020-08-05 |
US20200257195A1 (en) | 2020-08-13 |
JP7297256B2 (ja) | 2023-06-26 |
JPWO2019066000A1 (ja) | 2020-11-26 |
EP3690547A4 (en) | 2020-12-16 |
CN111164511A (zh) | 2020-05-15 |
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