WO2022255290A1 - 平坦化膜の製造方法、平坦化膜用材料および平坦化膜 - Google Patents
平坦化膜の製造方法、平坦化膜用材料および平坦化膜 Download PDFInfo
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- WO2022255290A1 WO2022255290A1 PCT/JP2022/021881 JP2022021881W WO2022255290A1 WO 2022255290 A1 WO2022255290 A1 WO 2022255290A1 JP 2022021881 W JP2022021881 W JP 2022021881W WO 2022255290 A1 WO2022255290 A1 WO 2022255290A1
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Images
Classifications
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- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45527—Atomic layer deposition [ALD] characterized by the ALD cycle, e.g. different flows or temperatures during half-reactions, unusual pulsing sequence, use of precursor mixtures or auxiliary reactants or activations
- C23C16/45536—Use of plasma, radiation or electromagnetic fields
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/90—Assemblies of multiple devices comprising at least one organic light-emitting element
- H10K59/95—Assemblies of multiple devices comprising at least one organic light-emitting element wherein all light-emitting elements are organic, e.g. assembled OLED displays
Definitions
- the present disclosure relates to a planarizing film manufacturing method, a planarizing film material, and a planarizing film.
- the flattening film is formed for the purpose of flattening the uneven surface of the base material by filling the grooves present in the base material or filling the surroundings of structures and particles protruding from the base material.
- an insulating film (element isolation insulating film) is provided between adjacent elements to ensure insulation between the elements.
- the element isolation insulating film is formed by embedding an insulating film in a trench (element isolation trench) provided in a semiconductor substrate.
- Patent Document 1 discloses a fluid CVD (Flowable Chemical Vapor Deposition) method.
- the burying of the planarization film by the fluid CVD method uses organic silane or organic siloxane as a raw material, and after forming a film of a fluid silicon compound (mainly silanol (Si(OH) 4 )) by the CVD method.
- a fluid silicon compound mainly silanol (Si(OH) 4 )
- Si(OH) 4 mainly silanol
- a silicon compound film having fluidity can easily enter a narrow space, so that it has the advantage of being excellent in embedding properties and being less likely to generate pores.
- volumetric shrinkage of the silicon compound film causes shrinkage and voids in the planarizing film to be obtained.
- shrinkage stress is generated in the resulting flattening film due to volumetric shrinkage, which reduces the film strength of the flattening film.
- the method of Patent Document 1 also has a problem in that it cannot be applied to substrates and structures with low heat resistance because the oxidation annealing at high temperatures causes thermal changes in the substrate and surrounding structures.
- the method according to Patent Document 1 requires two or more steps, such as the formation of the silicon compound film and the subsequent oxidation annealing treatment, and thus has a problem of low productivity.
- An object of the present invention is to provide a method for manufacturing a planarizing film, a material for a planarizing film, and a planarizing film.
- a method for manufacturing a planarizing film comprising: forming a planarizing film for planarizing an uneven surface on a base material having an uneven surface by plasma-enhanced chemical vapor deposition (PECVD) using a material for the planarizing film;
- the planarizing film material is an organosilane compound in which an unsaturated aliphatic hydrocarbon group is bonded to a Si atom; an oxidizing agent;
- Formation of the planarizing film includes: Forming and solidifying an unsolidified film derived from the planarizing film material on the substrate are performed sequentially or simultaneously, A method for manufacturing a planarized film is provided, wherein the formation and solidification of the unsolidified film are both due to a chemical reaction excited by plasma.
- planarizing film material used for a planarizing film that planarizes the uneven surface of a substrate, monosilane represented by formula (1), disiloxane represented by formula (2), A planarizing film material containing one or more organosilane compounds selected from the group consisting of a cyclic siloxane represented by formula (3) and a trisiloxane represented by formula (4) is provided:
- R 1 is an alkenyl group having 1 to 10 carbon atoms, an alkynyl group having 1 to 10 carbon atoms
- R 2 is an alkoxy group having 1 to 10 carbon atoms, a hydroxyl group or a hydrogen atom
- R 3 is a phenyl group or a benzyl group, or a linear, branched or cyclic alkyl group having 1 to 10 carbon atoms, a is an integer from 1 to 4, b is an integer from 0 to 3, a+b is an integer of 2-4.
- R 7 is an alkenyl group having 1 to 10 carbon atoms, an alkynyl group having 1 to 10 carbon atoms
- R 8 is an alkoxy group having 1 to 10 carbon atoms, a hydroxyl group or a hydrogen atom
- R 9 is a phenyl group or a benzyl group, or a linear, branched or cyclic alkyl group having 1 to 10 carbon atoms, e is 1 or 2; f is 0 or 1; e+f is 1 or 2; n is an integer of 2-6.
- R 10 and R 13 are each an alkenyl group having 1 to 10 carbon atoms and an alkynyl group having 1 to 10 carbon atoms
- R 11 and R 14 are each an alkoxy group having 1 to 10 carbon atoms, a hydroxyl group, or a hydrogen atom
- R 12 and R 15 are each a phenyl group or a benzyl group, or a linear, branched or cyclic alkyl group having 1 to 10 carbon atoms
- g is an integer from 0 to 3
- i is an integer from 0 to 2
- g+i is an integer from 1 to 5
- h is an integer from 0 to 3
- i+j is an integer from 0 to 2;
- a planarizing film which comprises a component derived from the planarizing film material.
- An electronic device comprising the planarizing film.
- a coating film comprising the planarizing film is provided.
- a method for manufacturing a planarizing film that is excellent in productivity and capable of forming a planarizing film with excellent flatness on an uneven surface of a base material with low heat resistance, and a planarizing film materials and planarizing films can be provided.
- FIG. 1 is a schematic cross-sectional view of a silicon wafer with a line-and-space pattern, which is a base material having an uneven surface for forming a planarizing film of one embodiment according to the present invention, and is shown in a state before forming a planarizing film;
- FIG. . 1 is a schematic cross-sectional view of a silicon wafer with a line-and-space pattern, which is a substrate having an uneven surface on which a planarizing film of one embodiment according to the present invention is formed, after forming the planarizing film;
- FIG. . 1 is an electron micrograph showing a cross section of a silicon wafer with a line-and-space pattern on which a planarizing film of Example 1 is formed.
- a planarizing film for planarizing the uneven surface is formed from a planarizing film material on a base material having an uneven surface by a PECVD (plasma-enhanced chemical vapor deposition) method.
- the planarizing film material contains an organic silane compound in which an unsaturated aliphatic hydrocarbon group is bonded to a Si atom, and an oxidizing agent, and the planarizing film is The formation is performed by sequentially or simultaneously forming and solidifying an unsolidified film derived from the planarizing film material on the substrate, and the formation and solidification of the unsolidified film are both excited by plasma. It is due to the chemical reaction that took place.
- the organic silane compound in which the unsaturated aliphatic hydrocarbon group is bonded to the Si atom and the oxidizing agent contained in the planarizing film material are excited by the plasma to generate the unsaturated aliphatic hydrocarbon.
- Various chemical reactions such as polymerization reaction at the carbon-carbon double bond and triple bond contained in the group, and polycondensation reaction of organic silane compound by plasma oxidizing agent, are derived from flattening film materials.
- An unsolidified film can be formed on the uneven surface of the substrate.
- the unsolidified film formed at this time is formed along the unevenness on the surface of the base material, and more preferably, is formed so as to be able to flow on the uneven surface.
- the planarizing film material used for producing the planarizing film of the present invention contains an organosilane compound in which an unsaturated aliphatic hydrocarbon group is bonded to a Si atom.
- the organosilane compound may have two or more reactive groups bonded to the Si atom, including unsaturated aliphatic hydrocarbon groups.
- the reactive groups include alkenyl groups and alkynyl groups which are unsaturated aliphatic hydrocarbon groups, and one or more selected from the group consisting of alkoxy groups, hydroxyl groups and hydrogen atoms.
- organic silane compounds monosilane represented by formula (1), disiloxane represented by formula (2), It preferably contains one or more organosilane compounds selected from the group consisting of cyclic siloxanes represented by formula (3) and trisiloxanes represented by formula (4).
- R 1 is an alkenyl group having 1 to 10 carbon atoms, an alkynyl group having 1 to 10 carbon atoms
- R 2 is an alkoxy group having 1 to 10 carbon atoms, a hydroxyl group or a hydrogen atom
- R 3 is a phenyl group or a benzyl group, or a linear, branched or cyclic alkyl group having 1 to 10 carbon atoms, a is an integer from 1 to 4, b is an integer from 0 to 3, a+b is an integer of 2-4.
- R 7 is an alkenyl group having 1 to 10 carbon atoms, an alkynyl group having 1 to 10 carbon atoms
- R 8 is an alkoxy group having 1 to 10 carbon atoms, a hydroxyl group or a hydrogen atom
- R 9 is a phenyl group or a benzyl group, or a linear, branched or cyclic alkyl group having 1 to 10 carbon atoms, e is 1 or 2; f is 0 or 1; e+f is 1 or 2; n is an integer of 2-6.
- R 10 and R 13 are each an alkenyl group having 1 to 10 carbon atoms and an alkynyl group having 1 to 10 carbon atoms
- R 11 and R 14 are each an alkoxy group having 1 to 10 carbon atoms, a hydroxyl group, or a hydrogen atom
- R 12 and R 15 are each a phenyl group or a benzyl group, or a linear, branched or cyclic alkyl group having 1 to 10 carbon atoms
- g is an integer from 0 to 3
- i is an integer from 0 to 2
- g+i is an integer from 1 to 5
- h is an integer from 0 to 3
- i+j is an integer from 0 to 2;
- R 1 , R 4 , R 7 , R 10 and R 13 are each preferably an alkenyl group having 1 to 5 carbon atoms and an alkynyl group having 1 to 5 carbon atoms.
- linear, branched or cyclic alkyl groups having 1 to 10 carbon atoms include, for example, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group, t-butyl group, 2-ethylhexyl group, cyclopropyl group, cyclobutyl group, cyclohexyl group and the like.
- the alkenyl group having 1 to 10 carbon atoms includes, for example, vinyl group, allyl group, propenyl group, isopropenyl group, butenyl group, hexenyl group, cyclohexenyl group, and the like.
- the alkynyl group having 1 to 10 carbon atoms includes, for example, ethynyl group, 1-propynyl group, 2-propynyl group and the like.
- the alkoxy group having 1 to 10 carbon atoms includes, for example, methoxy group, ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, isobutoxy group and sec-butoxy group. , t-butoxy group, n-pentyloxy group, sec-pentyloxy group, t-pentyloxy group, neopentyloxy group, n-hexyloxy group, n-heptyloxy group, n-octyloxy group, 2-ethylhexyl An oxy group and the like can be mentioned.
- a monosilane of formula (1) (ie, SiR 1 a R 2 b R 3 (4-(a+b)) ) where R 1 is a vinyl group and a is 2 and the number of alkoxy groups, hydroxy groups and hydrogen atoms corresponding to R 2 is 0 (that is, b is 0), R 3 is a methyl group, and (4-(a+b)) is 2 (ie, (a+b) is 2). That is, compound 1 is monosilane represented by Si(C 2 H 3 ) 2 (CH 3 ) 2 .
- Particularly preferred organic silane compounds include tetravinylsilane, trivinylsilane, divinylsilane, vinylsilane, tetraallylsilane, triallylsilane, diallylsilane, allylsilane, methyltrivinylsilane, ethyltrivinylsilane, triallylmethylsilane, and triallylethylsilane.
- the planarizing film material used for producing the planarizing film of the present invention must contain an oxidizing agent.
- Oxidants include oxygen, ozone, nitrogen oxides, carbon dioxide, carbon monoxide, hydrogen peroxide and the like.
- the oxidizing agent may be a mixture of two or more of these.
- planarizing film material used for producing the planarizing film of the present invention may further contain one or more selected from the group consisting of alcohol and water.
- the planarizing film material may be a mixture of two or more of these alcohols, or a mixture of one or more of these alcohols and water.
- the planarizing film material used to produce the planarizing film of the present invention may be substantially free of alcohol and water.
- the material “substantially free of alcohol and water” is not limited to the material free of alcohol and water, but also includes the material to which alcohol and water are not intentionally added. . That is, when alcohol and water are "substantially free", the planarizing film material may contain alcohol and water as impurities. , alcohol or water may be contained at a rate of 0.1% by volume or less.
- a substrate having an uneven surface can be used as the substrate (substrate for film formation) on which the planarizing film is formed.
- a substrate having an uneven surface it is possible to form a planarizing film that planarizes the uneven surface using the above material for planarizing film.
- the material of the substrate is not particularly limited, and ceramic substrates such as metal oxides, metal nitrides, metal nitride oxides, and silicon oxides; crystalline substrates such as silicon; metal-based substrates such as metals and alloys; substrate; glass substrate; and the like.
- plastic substrates include, for example, polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, cycloolefin polymer, polyethylene, polypropylene, polystyrene, polyvinyl chloride, ABS (acrylonitrile butadiene styrene) resin, methacrylic resin, modified polyphenylene ether,
- plastic substrates include, for example, polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, cycloolefin polymer, polyethylene, polypropylene, polystyrene, polyvinyl chloride, ABS (acrylonitrile butadiene styrene) resin, methacrylic resin, modified polyphenylene ether,
- plastic substrates include, for example, polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, cycloolefin polymer, polyethylene, polypropylene, polystyrene
- the base material may be a base material in which a material different from that of the substrate is carried on the substrate, or a base material in which one or more layers are laminated on the surface of the substrate.
- the uneven surface is not particularly limited, but a typical example is a surface having a line-and-space pattern.
- the line-and-space pattern is a pattern in which line portions (linear convex portions having a predetermined width) and space portions (linear concave portions having a predetermined width) are alternately arranged adjacent to each other.
- the widths of the line portions and the space portions are both in the range of 2 ⁇ m or more and 100 ⁇ m or less, and a plurality of sets of line portions and space portions having the same width (for example, A ⁇ m) are continuously arranged adjacent to each other.
- line portions and space portions having the same width for example, A ⁇ m
- another line portion and space portion having the same width for example, B ⁇ m
- a repeating structure may be arranged.
- the step height between the line portion and the space portion in the line and space pattern is not particularly limited, but is in the range of 1 ⁇ m or more and 3 ⁇ m or less.
- the base material is supplied to the chamber (film formation chamber) of the film formation apparatus for the PECVD method.
- the method of transporting the base material to the film forming chamber is not particularly limited, and known methods such as a batch method, a single-wafer method, and a roll-to-roll method can be used.
- a flattening film is formed by the PECVD method using the flattening film material described above. At this time, if the raw material constituting the flattening film material is in a state other than gas, it is all gasified and then supplied to the film forming chamber (chamber) in which the substrate is installed.
- a method of gasifying a planarizing film material other than a gas for example, a method of putting a raw material in a heated constant temperature bath and reducing the pressure using a vacuum pump or the like to gasify; and gasification by blowing a carrier gas such as helium, neon, argon, krypton, xenon, or nitrogen; A method in which the solution is sent to a vaporizer, heated, and gasified in the vaporizer (liquid injection method);
- the solvent for dissolving the planarizing film material includes, for example, 1,2-dimethoxyethane, diglyme, triglyme, dioxane, tetrahydrofuran, and cyclopentylmethyl ether.
- ethers such as hexane, cyclohexane, methylcyclohexane, ethylcyclohexane, heptane, octane, nonane, decane, benzene, toluene, ethylbenzene, xylene, and other hydrocarbons;
- the flattening film material in a gaseous state or in a gaseous state by gasification is supplied to the film-forming chamber after all constituent components are mixed, partially mixed, or not mixed.
- the planarizing film material such as an organosilane compound, supplied to the deposition chamber is excited by the plasma generated in the deposition chamber, thereby forming a carbon-carbon double layer contained in the unsaturated aliphatic hydrocarbon group.
- Various chemical reactions such as polymerization reactions at bonds and triple bonds, and polycondensation reactions of organic silane compounds caused by the oxidizing agent turned into plasma, proceed, and as a result, an unsolidified film derived from the flattening film material is formed on the substrate. be done.
- a flattened film is formed by solidifying the unsolidified film by plasma.
- the formation and solidification of the unsolidified film derived from the flattening film material on the substrate can be carried out sequentially or simultaneously.
- both the formation and solidification of the unsolidified film can be performed by plasma-induced chemical reactions.
- the chemical reaction excited by the plasma may proceed only by the excitation by the plasma, but the excitation by the plasma may be combined with irradiation of light or heating of the substrate.
- the formation and solidification of the unsolidified film are performed in a single process.
- the source of plasma that excites the chemical reaction of the planarizing film material is not particularly limited, and plasma generated using a radio frequency (RF) power supply can be used. More specifically, capacitively coupled plasma, Inductively coupled plasma, helicon wave plasma, surface wave plasma, electron cyclotron resonance plasma, and the like can be used.
- RF radio frequency
- the power density applied to the electrodes of the PECVD apparatus to generate plasma is preferably 0.01 W/cm 2 or more, and is in the range of 0.01 W/cm 2 or more and 100 W/cm 2 or less. is more preferred.
- the temperature of the surface of the substrate (in particular, the surface on which the planarizing film is formed) when forming the planarizing film is not particularly limited, but is preferably 300° C. or lower, and is preferably ⁇ 100° C. or higher and 300° C. or higher. °C or less, and more preferably 0°C or more and 200°C or less.
- the surface temperature of the substrate when forming the planarizing film is preferably equal to or lower than the heat-resistant temperature of the substrate. In particular, the surface temperature of the substrate is preferably within these temperature ranges during the formation and solidification of the unsolidified film.
- the atmospheric pressure when forming the planarizing film is not particularly limited, and is preferably in the range of 0.01 Pa or more and 101325 Pa or less, and particularly preferably in the range of 1 Pa or more and 10000 Pa or less.
- the surface temperature of the base material, the atmospheric pressure, the flow rate of the organic silane compound, the presence or absence of alcohol and water and their flow rates, the flow rate of the oxidizing agent, Film formation conditions can be appropriately adjusted based on the presence or absence of a carrier gas such as helium and its flow rate.
- a carrier gas such as helium and its flow rate.
- the formation of the planarizing film is performed by X [sccm], the flow rate of the organic silane compound constituting the planarizing film material supplied at the time of film formation, and the flow rate of one or more types selected from the group consisting of alcohol and water.
- the ratio of Y to X is preferably 20 or less, more preferably 10 or less.
- the ratio of Z to X is preferably 20 or less, more preferably 10 or less.
- the lower limit of the Z/X ratio should be greater than 0, preferably greater than or equal to 0.01.
- the lower limit of the Y/X ratio is not particularly limited, and may be zero.
- the film thickness of the flattening film formed by such a PECVD method is not particularly limited, it is preferably equal to or greater than the height of the steps of the uneven surface of the substrate.
- the "thickness of the planarizing film” refers to a flat portion of the substrate surface (i.e., It may be a film thickness formed on the part where the unevenness is not formed).
- the planarizing film mainly composed of silicon oxide which is formed by the above process, is composed of an organic silane compound in a gaseous state in which an unsaturated aliphatic hydrocarbon group is bonded to a Si atom, and an oxidized It can be formed by using an agent. Thereby, a planarization film having high planarization performance can be formed under low-temperature conditions without post-treatment for curing the film.
- planarizing film material of the present invention is a planarizing film material used for a planarizing film that planarizes the uneven surface of a substrate, monosilane represented by formula (1), a disiloxane represented by formula (2), and one or more organosilane compounds selected from the group consisting of a cyclic siloxane represented by formula (3) and a trisiloxane represented by formula (4); and an oxidizing agent.
- the monosilane represented by the formula (1), the disiloxane represented by the formula (2), the cyclic siloxane represented by the formula (3), and the trisiloxane represented by the formula (4) are the above-mentioned ⁇ Since it is the same as that described in ⁇ Organosilane compound>> including its definition and preferred range, description here is omitted.
- planarizing film material preferably further contains one or more selected from the group consisting of alcohol and water in addition to the organosilane compound described above.
- the planarizing film material of the present invention is preferably used for forming an organic electroluminescent device.
- the obtained planarizing film has excellent planarity and high productivity, and is therefore useful in forming an organic electroluminescent device.
- since no annealing treatment is required during the preparation of the planarizing film it is useful for use as a planarizing film for organic electroluminescence devices.
- the planarizing film of the present invention contains at least a component derived from an organic silane compound among the planarizing film materials described above.
- the carbon concentration in the planarization film is 12 atomic % or less.
- a silicon oxide film having a low carbon concentration in the film has a very high light transmittance, and is therefore useful for optical members and displays.
- the planarizing film is preferably an unannealed product. Since no annealing treatment is required, it contributes to the production of planarizing films that can be applied to targets with low heat resistance.
- a flattening film material according to this aspect a flattening film having excellent flatness can be produced even on a substrate having low heat resistance, such as a plastic substrate.
- a flattened film that is not annealed has a reduced volumetric shrinkage and a small shrinkage stress.
- the flattening film, which is an unannealed object is less affected by the annealing on the substrate on which it is formed. Therefore, whether or not the planarizing film is unannealed can be determined by observing traces of volume shrinkage, observing the effect of contraction stress, or observing the effect of annealing on the substrate. .
- FIG. 1 is a schematic cross-sectional view of a silicon wafer with a line and space pattern, which is a substrate having an uneven surface on which a planarizing film of one embodiment according to the present invention is formed, before forming the planarizing film.
- FIG. 2 is a schematic cross-sectional view of a silicon wafer with a line-and-space pattern, which is a base material having an uneven surface for forming a planarizing film according to one embodiment of the present invention. shown in the state after
- the planarizing film 2 planarizes the uneven surface 11 of the substrate 1, such as a silicon wafer with a line-and-space pattern. That is, as shown in FIG. 2, the planarizing film 2 has a planarized upper surface after the planarizing film 2 is formed.
- the flattening film is formed for the purpose of filling grooves existing in the base material, and filling the surroundings of structures, particles, etc. protruding from the base material to flatten the surface. Therefore, the use of the planarizing film is not particularly limited, and it can be used, for example, as a coating film, various electronic devices, and the like.
- the electronic device of the present invention includes the flattening film described above.
- the electronic device may comprise an organic electroluminescent element.
- the coating film of this invention is equipped with the planarization film mentioned above.
- the coating film has a flattening film on the surface of the resin base material.
- resin substrates include polyethylene terephthalate, cyclic olefin copolymer, polyacrylate, polycarbonate, polyethylene, polymethyl methacrylate, polyether ether ketone, polyethylene naphthalate, polyetherimide, polyimide, and triacetyl cellulose. .
- Electronic devices include multilayer printed wiring boards; various displays such as thin film transistor (TFT) type liquid crystal display elements and organic electroluminescence elements; photoelectric conversion elements such as solar cells and imaging elements; optical sensors, temperature sensors, touch sensors, Various sensors such as a pressure sensor; IC (integrated circuit) card; RFID (radio frequency identifier);
- planarizing film of the present invention does not require annealing treatment during its production, it can be used for planarization of substrates and structures with low heat resistance such as plastic substrates and organic electroluminescent elements. can also be applied. Moreover, since the planarizing film of the present invention has excellent light transmittance, it can be suitably used for optical elements such as OLEDs and OLED displays.
- a planarization film was formed on the substrate using a general CVD apparatus that forms a film by a capacitively coupled PECVD method.
- a silicon wafer with a line-and-space pattern having a diameter of 200 mm and a thickness of 725 ⁇ m was used as a base material for film formation.
- the flattening performance was evaluated by observing a cross-sectional image of the portion where this line-and-space pattern was formed.
- thermopit 9MC manufactured by AS ONE was attached to the surface of the film formation substrate, which was the film formation surface, and the indicated temperature value after film formation was used. This temperature indication value indicates the maximum temperature reached during film formation.
- a planarization rate represented by the following formula was used for evaluation of the planarization performance of the planarization film.
- Flattening rate (%) ⁇ 1-(height of step between line and space after flattening film formation/height of step between line and space before flattening film is formed) ⁇ ⁇ 100
- the height of the step between the line portion and the space portion before and after the formation of the flattening film was obtained by photographing a cross-sectional image of the film using a field emission scanning electron microscope (FE-SEM) JSM-7600F manufactured by JEOL Ltd. Estimated. Note that the flattening rate is the average value of measurements at two locations.
- FE-SEM field emission scanning electron microscope
- the film thickness of the flattening film was roughly estimated by photographing a cross-sectional image of the film using a field emission scanning electron microscope (FE-SEM) (manufactured by JEOL Ltd., model number: JSM-7600F).
- FE-SEM field emission scanning electron microscope
- the film composition of the flattening film was analyzed using an X-ray photoelectron spectrometer (XPS) (manufactured by Ulvac-Phi, model number: PHI5000 VersaProbeII).
- XPS X-ray photoelectron spectrometer
- the elastic modulus and hardness of the flattening film can be measured using an ultra-micro hardness tester (manufactured by KLA-Tencor, model number: Nano Indenter G200X Infoforce 50) to obtain data in the depth direction in order to reduce the influence of the base material.
- a load-displacement curve was obtained by a nanoindentation method employing a continuous stiffness measurement method, which is a possible method, and calculation was performed from the obtained load-displacement curve.
- a triangular pyramid indenter made of diamond was used as the indenter attached to the ultra-micro hardness tester.
- Example 1 Formation of planarizing film using isopropyldimethoxyvinylsilane and oxygen Isopropyldimethoxyvinylsilane (an organic silane compound) was synthesized by the method described in Japanese Patent No. 4438385 . Next, the obtained isopropyldimethoxyvinylsilane and oxygen (oxidizing agent) are supplied to a film formation chamber, and under the following film formation conditions, PECVD is performed on a silicon wafer with a line-and-space pattern, which is a base material. A flattening film was formed on the substrate. During film formation, cooling water was circulated inside the substrate table in the film forming chamber to cool the substrate table.
- the film forming temperature of the planarizing film (the surface temperature of the base material during film formation) was at room temperature (approximately 20°C) or higher and less than 40°C.
- a line-and-space pattern as shown in FIG. 1 is formed as an uneven surface 11 on the surface of the silicon wafer that is the base material.
- Each width was 2 ⁇ m
- the width of each space portion 11b was 1 ⁇ m
- the step height between the line portion 11a and the space portion 11b was 2 ⁇ m.
- the film thickness of the obtained flattening film was 4 ⁇ m.
- the flattening rate of the flattening film was 100%.
- the resulting planarizing film had a composition of 33 atomic % silicon (Si), 56 atomic % oxygen (O), and 11 atomic % carbon (C).
- the obtained flattening film had an elastic modulus of 6 GPa and a hardness of 0.7 GPa.
- the obtained silicon wafer with a line-and-space pattern on which the planarizing film was formed was observed with an electron microscope.
- FIG. 3 is an electron micrograph showing a cross section of a silicon wafer with a line-and-space pattern on which the planarizing film of Example 1 was formed. As shown in FIG. 3, it can be seen that the uneven surface 11 of the silicon wafer which is the substrate 1 is planarized by the planarizing film 2 .
- the film thickness of the obtained flattening film was 1 ⁇ m.
- the flattening rate of the flattening film was 0%.
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Abstract
Description
凹凸表面を有する基材上に、PECVD(plasma-enhanced chemical vapor deposition)法によって平坦化膜用材料から、前記凹凸表面を平坦化する平坦化膜を形成する、平坦化膜の製造方法であって、
前記平坦化膜用材料は、
不飽和脂肪族炭化水素基がSi原子に結合した有機シラン化合物と、
酸化剤と、を含み、
前記平坦化膜の形成は、
前記基材上への前記平坦化膜用材料由来の未固化膜の形成および固化を、順次または同時進行させることによって行い、
前記未固化膜の形成および固化が、いずれもプラズマで励起された化学反応によるものである、平坦化膜の製造方法が提供される。
式(1)で表されるモノシラン、
式(2)で表されるジシロキサン、
式(3)で表される環状シロキサン、および
式(4)で表されるトリシロキサンからなる群より選択される1種以上の有機シラン化合物を含有する、平坦化膜用材料が提供される:
R1は、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R2は、炭素数1~10のアルコキシ基、ヒドロキシル基または水素原子であり、
R3は、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
aは、1~4の整数であり、
bは、0~3の整数であり、
a+bは、2~4の整数である。
R4は、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R5は、炭素数1~10のアルコキシ基、ヒドロキシル基または水素原子であり、
R6は、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
cは、1~3の整数であり、
dは、0~2の整数であり、
c+dは、1~3の整数である。
R7は、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R8は、炭素数1~10のアルコキシ基、ヒドロキシル基または水素原子であり、
R9は、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
eは、1または2であり、
fは、0または1であり、
e+fは、1または2であり、
nは、2~6の整数である。
R10およびR13は、それぞれ、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R11およびR14は、それぞれ、炭素数1~10のアルコキシ基、ヒドロキシル基、または、水素原子であり、
R12およびR15は、それぞれ、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
gは、0~3の整数であり、
iは、0~2の整数であり、
g+iは、1~5の整数であり、
hは、0~3の整数であり、
jは、0~2の整数であり、
g+hは、0~3の整数であり、
i+jは、0~2の整数である。
上記平坦化膜用材料由来の成分からなる、平坦化膜が提供される。
上記平坦化膜を備える、電子デバイスが提供される。
上記平坦化膜を備える、コーティングフィルムが提供される。
本発明の平坦化膜の製造方法は、凹凸表面を有する基材上に、PECVD(plasma-enhanced chemical vapor deposition)法によって平坦化膜用材料から、前記凹凸表面を平坦化する平坦化膜を形成する、平坦化膜の製造方法であって、前記平坦化膜用材料は、不飽和脂肪族炭化水素基がSi原子に結合した有機シラン化合物と、酸化剤と、を含み、前記平坦化膜の形成は、前記基材上への前記平坦化膜用材料由来の未固化膜の形成および固化を、順次または同時進行させることによって行い、前記未固化膜の形成および固化が、いずれもプラズマで励起された化学反応によるものである。
本発明の平坦化膜の作製に用いられる平坦化膜用材料は、不飽和脂肪族炭化水素基がSi原子に結合した有機シラン化合物を含有する。ここで、有機シラン化合物は、不飽和脂肪族炭化水素基を含めて、2つ以上の反応性基がSi原子に結合していてもよい。ここで、反応性基としては、不飽和脂肪族炭化水素基であるアルケニル基およびアルキニル基のほか、アルコキシ基、ヒドロキシル基および水素原子からなる群から選択される1種以上が挙げられる。このような有機シラン化合物の中でも、特に、
式(1)で表されるモノシラン、
式(2)で表されるジシロキサン、
式(3)で表される環状シロキサン、および
式(4)で表されるトリシロキサン
からなる群より選択される1種以上の有機シラン化合物を含有することが好ましい。
R1は、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R2は、炭素数1~10のアルコキシ基、ヒドロキシル基または水素原子であり、
R3は、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
aは、1~4の整数であり、
bは、0~3の整数であり、
a+bは、2~4の整数である。
R4は、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R5は、炭素数1~10のアルコキシ基、ヒドロキシル基または水素原子であり、
R6は、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
cは、1~3の整数であり、
dは、0~2の整数であり、
c+dは、1~3の整数である。
R7は、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R8は、炭素数1~10のアルコキシ基、ヒドロキシル基または水素原子であり、
R9は、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
eは、1または2であり、
fは、0または1であり、
e+fは、1または2であり、
nは、2~6の整数である。
R10およびR13は、それぞれ、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R11およびR14は、それぞれ、炭素数1~10のアルコキシ基、ヒドロキシル基、または、水素原子であり、
R12およびR15は、それぞれ、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
gは、0~3の整数であり、
iは、0~2の整数であり、
g+iは、1~5の整数であり、
hは、0~3の整数であり、
jは、0~2の整数であり、
g+hは、0~3の整数であり、
i+jは、0~2の整数である。
なお、化合物1~7296における略号が示すものは以下のとおりである。
Me:メチル基
Et:エチル基
nPr:n-プロピル基
iPr:イソプロピル基
nBu:n-ブチル基
iBu:イソブチル基
secBu:sec-ブチル基
tBu:t-ブチル基
OH:ヒドロキシ基
OMe:メトキシ基
OEt:エトキシ基
OnPr:n-プロポキシ基
OiPr:イソプロポキシ基
OnBu:n-ブトキシ基
OiBu:イソブトキシ基
OsecBu:sec-ブトキシ基
OtBu:t-ブトキシ基
本発明の平坦化膜の作製に用いられる平坦化膜用材料は、酸化剤を含有することが必要である。
酸化剤としては、酸素、オゾン、窒素酸化物、二酸化炭素、一酸化炭素、過酸化水素などが挙げられる。酸化剤は、これらのうち2種類以上の混合物であってもよい。
本発明の平坦化膜の作製に用いられる平坦化膜用材料は、アルコールおよび水からなる群より選択される1種以上をさらに含有してもよい。
0.1体積%以下の割合で含まれてもよい。
平坦化膜を形成する基材(成膜用基板)は、凹凸表面を有するものを用いることができる。凹凸表面を有する基材を用いることで、上述の平坦化膜用材料を用いて、凹凸表面を平坦化する平坦化膜を形成することができる。
上述の平坦化膜用材料を、PECVD法で平坦化膜を形成する。この際、平坦化膜用材料を構成する原料が気体以外の状態の場合は、全てガス化した後で、基材を設置した成膜室(チャンバ)に供給する。
本発明の平坦化膜用材料は、基材における凹凸表面を平坦化する平坦化膜に用いられる平坦化膜用材料であり、
式(1)で表されるモノシラン、
式(2)で表されるジシロキサン、および、
式(3)で表される環状シロキサン、および
式(4)で表されるトリシロキサン
からなる群より選択される1種以上の有機シラン化合物と、
酸化剤と、を含有する。
ここで、式(1)で表されるモノシラン、式(2)で表されるジシロキサン、式(3)で表される環状シロキサン、式(4)で表されるトリシロキサンは、上述の<<有機シラン化合物>>において述べたものと、その定義および好ましい範囲を含めて同一であるため、ここでの説明は省略する。
平坦化膜は、基材に存在する溝を埋める目的、基材上に突き出た構造やパーティクル等の周りを埋めて表面を平坦にする目的等で形成するものである。したがって、平坦化膜の用途は特に限定されず、例えば、コーティングフィルム、種々の電子デバイス等に用いることができる。
ここで、基材である成膜用基板として、直径200mm、厚さ725μmのラインアンドスペースパターン付きシリコンウェハを使用した。このシリコンウェハに平坦化膜を成膜した後に、このラインアンドスペースパターンが形成されている部位の断面像を観察することで、平坦化性能を評価した。
平坦化率(%)={1-(平坦化膜成膜後のライン部とスペース部の間の段差高さ/平坦化膜成膜前のライン部とスペース部の間の段差高さ)}×100
平坦化膜成膜前後のライン部とスペース部との間の段差高さは、日本電子社製電界放射型走査電子顕微鏡(FE-SEM)JSM-7600Fを用いて膜の断面像を撮影し、概算した。
なお、平坦化率は、2箇所の測定における平均値である。
特許第4438385号公報に記載の方法により、イソプロピルジメトキシビニルシラン(有機シラン化合物)を合成した。ついで、得られたイソプロピルジメトキシビニルシランと、酸素(酸化剤)と、を成膜室に供給して、以下に示す成膜条件で、PECVD法により、基材であるラインアンドスペースパターン付きシリコンウェハ上に平坦化膜を成膜した。成膜の際には成膜室内の基板台内部に冷却水を循環させて、基板台を冷却した。このときの平坦化膜の成膜温度(成膜時の基材の表面温度)は、常温(約20℃)以上であり、かつ40℃未満であった。なお、基材であるシリコンウェハの表面には、図1に記載されるようなラインアンドスペースパターンが凹凸表面11として形成されており、基材1の凹凸表面11は、ライン部11aの幅がそれぞれ2μmであり、スペース部11bの幅がそれぞれ1μmであり、かつ、ライン部11aとスペース部11bとの間の段差高さが2μmであった。
イソプロピルジメトキシビニルシランの供給流量:14sccm
酸素の供給流量:20sccm
ヘリウムの供給流量:50sccm
成膜室の圧力:133.3Pa
PECVD装置の電源の種類:RF電源
電源周波数:13.56MHz
電源出力:80W(電極に印加する電力密度:0.25W/cm2)
PECVD装置のプラズマ源の種類:容量結合プラズマ
成膜時間:5分間
また、得られた平坦化膜が成膜されたラインアンドスペースパターン付きシリコンウェハを、電子顕微鏡で観察した。図3は、実施例1の平坦化膜が成膜されたラインアンドスペースパターン付きシリコンウェハの断面を示す電子顕微鏡写真である。図3に示すように、基材1であるシリコンウェハが有する凹凸表面11が、平坦化膜2によって平坦化されていることがわかる。
K. Lin、R. J. Wiles、C. B. Kelly、G. H. M.Davies、G. A. Molander、ACS Catalysis、2017年、7巻、5129~5133頁.に記載の方法に基づいてt-ブチルトリエトキシシラン(有機シラン化合物)を合成した。ついで、得られたt-ブチルトリエトキシシランと、酸素(酸化剤)と、を成膜室に供給して、以下に示す成膜条件で、PECVD法により、実施例1と同じラインアンドスペースパターン付きシリコンウェハ上に、平坦化膜を成膜した。なお、PECVD装置の電源のプラズマ源の種類、電源周波数、電源出力と、基板台の冷却については、実施例1と同一とした。成膜温度(成膜時の基材の表面温度)は、常温以上であり、かつ40℃未満であった。
t-ブチルトリエトキシシランの供給流量:16sccm
酸素の供給流量:20sccm
ヘリウムの供給流量:20sccm
成膜室の圧力:133.3Pa
成膜時間:5分間
11 凹凸表面
11a ライン部
11b スペース部
2 平坦化膜
Claims (18)
- 凹凸表面を有する基材上に、PECVD(plasma-enhanced chemical vapor deposition)法によって平坦化膜用材料から、前記凹凸表面を平坦化する平坦化膜を形成する、平坦化膜の製造方法であって、
前記平坦化膜用材料は、
不飽和脂肪族炭化水素基がSi原子に結合した有機シラン化合物と、
酸化剤と、
を含み、
前記平坦化膜の形成は、
前記基材上への前記平坦化膜用材料由来の未固化膜の形成および固化を、順次または同時進行させることによって行い、
前記未固化膜の形成および固化が、いずれもプラズマで励起された化学反応によるものである、平坦化膜の製造方法。 - 前記有機シラン化合物は、2つ以上の反応性基がSi原子に結合している、請求項1に記載の平坦化膜の製造方法。
- 前記平坦化膜用材料は、アルコールまたは水をさらに含有する、請求項1または2に記載の平坦化膜の製造方法。
- 前記平坦化膜用材料は、アルコールおよび水を実質的に含有しない、請求項1または2に記載の平坦化膜の製造方法。
- 前記未固化膜の形成および固化が、単一のプロセスで行われる、請求項1または2に記載の平坦化膜の製造方法。
- 前記平坦化膜を形成する際の前記基材の表面温度が300℃以下である、請求項1または2に記載の平坦化膜の製造方法。
- 前記平坦化膜を形成する際の雰囲気圧力が、0.01Pa以上101325Pa以下の範囲である、請求項1または2に記載の平坦化膜の製造方法。
- 前記平坦化膜の形成は、前記平坦化膜用材料である、有機シラン化合物の流量をX[sccm]、アルコールおよび水からなる群より選択される1種以上の流量をY[sccm]、酸化剤の流量をZ[sccm]としたときに、Xに対するYの比(Y/X比)が20以下であり、かつXに対するZの比(Z/X比)が20以下である、請求項1または2に記載の平坦化膜の製造方法。
- 基材における凹凸表面を平坦化する平坦化膜に用いられる平坦化膜用材料であって、
前記平坦化膜用材料は、
式(1)で表されるモノシラン、
式(2)で表されるジシロキサン、
式(3)で表される環状シロキサン、および
式(4)で表されるトリシロキサン
からなる群より選択される1種以上の有機シラン化合物と、
酸化剤と、
を含有する、平坦化膜用材料。
R1は、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R2は、炭素数1~10のアルコキシ基、ヒドロキシル基または水素原子であり、
R3は、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
aは、1~4の整数であり、
bは、0~3の整数であり、
a+bは、2~4の整数である。
R4は、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R5は、炭素数1~10のアルコキシ基、ヒドロキシル基または水素原子であり、
R6は、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
cは、1~3の整数であり、
dは、0~2の整数であり、
c+dは、1~3の整数である。
R7は、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R8は、炭素数1~10のアルコキシ基、ヒドロキシル基または水素原子であり、
R9は、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
eは、1または2であり、
fは、0または1であり、
e+fは、1または2であり、
nは、2~6の整数である。
R10およびR13は、それぞれ、炭素数1~10のアルケニル基、炭素数1~10のアルキニル基であり、
R11およびR14は、それぞれ、炭素数1~10のアルコキシ基、ヒドロキシル基、または、水素原子であり、
R12およびR15は、それぞれ、フェニル基もしくはベンジル基、または、炭素数1~10の、直鎖状、分枝状もしくは環状のアルキル基であり、
gは、0~3の整数であり、
iは、0~2の整数であり、
g+iは、1~5の整数であり、
hは、0~3の整数であり、
jは、0~2の整数であり、
g+hは、0~3の整数であり、
i+jは、0~2の整数である。 - 有機電界発光素子の形成に用いられる、請求項9に記載の平坦化膜用材料。
- アルコールまたは水をさらに含有する、請求項9に記載の平坦化膜用材料。
- アルコールまたは水を実質的に含有しない、請求項9に記載の平坦化膜用材料。
- 請求項9から12のいずれか1項に記載の平坦化膜用材料のうち、少なくとも前記有機シラン化合物に由来する成分を含む、平坦化膜。
- アニール未処理物である、請求項13に記載の平坦化膜。
- 前記平坦化膜中における炭素濃度が12原子%以下である、請求項13に記載の平坦化膜。
- 請求項13に記載の平坦化膜を備える、電子デバイス。
- 有機電界発光素子をさらに備える、請求項16に記載の電子デバイス。
- 請求項13に記載の平坦化膜を備える、コーティングフィルム。
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JPH09148285A (ja) * | 1995-11-27 | 1997-06-06 | Sony Corp | 化学的機械研磨粒子及び半導体装置の製造方法 |
JPH1154504A (ja) * | 1997-08-04 | 1999-02-26 | Sony Corp | 積層絶縁体膜の形成方法およびこれを用いた半導体装置 |
JP2005051192A (ja) * | 2002-11-28 | 2005-02-24 | Tosoh Corp | 有機シラン、有機シロキサン化合物を含んでなる絶縁膜用材料、その製造方法および半導体デバイス |
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JP2012231007A (ja) | 2011-04-26 | 2012-11-22 | Elpida Memory Inc | 半導体装置の製造方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH08111412A (ja) * | 1994-10-06 | 1996-04-30 | Fujitsu Ltd | 半導体装置の製造方法 |
JPH0927490A (ja) * | 1995-07-10 | 1997-01-28 | Canon Inc | 堆積膜形成方法 |
JPH09148285A (ja) * | 1995-11-27 | 1997-06-06 | Sony Corp | 化学的機械研磨粒子及び半導体装置の製造方法 |
JPH1154504A (ja) * | 1997-08-04 | 1999-02-26 | Sony Corp | 積層絶縁体膜の形成方法およびこれを用いた半導体装置 |
JP2005051192A (ja) * | 2002-11-28 | 2005-02-24 | Tosoh Corp | 有機シラン、有機シロキサン化合物を含んでなる絶縁膜用材料、その製造方法および半導体デバイス |
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