WO2016208257A1 - 電子材料用重合体の製造方法およびその製造方法により得られた電子材料用重合体 - Google Patents
電子材料用重合体の製造方法およびその製造方法により得られた電子材料用重合体 Download PDFInfo
- Publication number
- WO2016208257A1 WO2016208257A1 PCT/JP2016/062058 JP2016062058W WO2016208257A1 WO 2016208257 A1 WO2016208257 A1 WO 2016208257A1 JP 2016062058 W JP2016062058 W JP 2016062058W WO 2016208257 A1 WO2016208257 A1 WO 2016208257A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- electronic materials
- monomer
- polymerization
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by heteroatoms or groups containing heteroatoms
- C08F212/22—Oxygen
- C08F212/24—Phenols or alcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F12/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by hetero atoms or groups containing heteroatoms
- C08F12/22—Oxygen
- C08F12/24—Phenols or alcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by heteroatoms or groups containing heteroatoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/06—Treatment of polymer solutions
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
- C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
- C08G8/20—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with polyhydric phenols
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133305—Flexible substrates, e.g. plastics, organic film
-
- H10P14/683—
Definitions
- the present invention relates to a method for producing a polymer for electronic materials and a polymer for electronic materials obtained by the production method. More specifically, a method for producing a copolymer for electronic materials with a low content of metal ion impurities by efficiently removing metal ion impurities in the copolymer for electronic materials by a simple and inexpensive method, and production thereof
- the present invention relates to a polymer for electronic materials obtained by the method.
- a thin film of a composition for photolithography such as a photoresist or an antireflection film is formed on a substrate such as a silicon wafer, and then developed by irradiating an excimer laser beam or the like through a mask on which a circuit pattern of a semiconductor device is drawn.
- a fine pattern corresponding to the semiconductor circuit is formed on the substrate surface.
- the above-mentioned various polymers are used as functional polymer materials in various industrial fields.
- photosensitive resin components used for interlayer insulating films and surface protective films of semiconductor elements,
- it is used as a raw material for resin components for semiconductor resists, and also as a material for flat panel displays.
- the wiring board is required to have higher density and higher wiring.
- Semiconductor-related materials and display materials such as various photoresists, underlayer films, and interlayer insulation films used for electronic substrates, semiconductor circuits, displays, etc. designed with high density by the fine processing as described above, It is necessary to keep the metal ions contained in the polymer material to a very small amount, and it is desired to reduce the metal content of the polymer, intermediate and monomer.
- the metal impurities contained in the copolymer for semiconductor lithography such as the copolymer for top coat and the copolymer for antireflection film are finally left on the surface of the semiconductor substrate, it is not limited to the resist copolymer. Impairs electrical characteristics and lowers product yield.
- the copolymer is extracted using an organic solvent and water, the copolymer is distributed to the organic layer, and the metal is distributed to the aqueous layer.
- a method of removing an aqueous layer (Patent Document 1), or a polymer obtained by solidifying a polymer by mixing a poor solvent and an acid of the polymer into an organic solvent solution of an alicyclic hydrocarbon polymer, and then solidifying the polymer.
- a method of extracting a metal by mixing a water-insoluble organic solvent, an acid and water has been reported.
- a method of passing a novolac resin solution through a cation exchange resin and an anion exchange resin washed with deionized water and a mineral acid solution (Patent Document 3), a dispersion liquid in which a polymer is dispersed in a dispersion medium is prepared in advance.
- a method of obtaining a polymer powder having a reduced metal content by filtering with a filter such as a filter cloth washed with an acidic aqueous solution Patent Document 4
- a method of removing metal by passing through an agent (Patent Document 5) has been reported.
- Patent Document 6 a method of adding a water-soluble and complex-forming compound equal to or more than the metal impurities in the polymer to the resist polymer solution to complete the reaction, followed by washing with pure water (Patent Document) 6) has been reported.
- Patent Document 6 a method of adding a water-soluble and complex-forming compound equal to or more than the metal impurities in the polymer to the resist polymer solution to complete the reaction, followed by washing with pure water
- An object of the present invention is to provide a method for producing a copolymer for electronic materials having a low content of metal ion impurities by efficiently removing metal ion impurities in the copolymer for electronic materials by a simple and inexpensive method. To do.
- the present inventors have added a strong acid having a pKa of 0 or less to a polymer solution containing a polymer obtained by polymerization reaction of monomers, It has been found that the content of metal ion impurities in the obtained polymer can be reduced very simply by performing ion exchange treatment to reduce the metal ion impurity concentration, and the present invention has been completed.
- the manufacturing method of the polymer for electronic materials which comprises this is provided.
- the strong acid is preferably at least one selected from the group consisting of organic sulfonic acid, sulfuric acid, and trifluoroacetic acid.
- the strong acid is preferably at least one organic sulfonic acid selected from the group consisting of trifluoromethanesulfonic acid, methanesulfonic acid and p-toluenesulfonic acid.
- the ion exchange treatment is preferably performed using an ion exchange resin.
- the polymer is preferably obtained by addition condensation of an aromatic monomer and an aldehyde and / or ketone monomer.
- the polymer is preferably obtained by living cationic polymerization of an oxystyrene monomer and a vinyl ether monomer.
- the polymer is preferably obtained by radical polymerization of an oxystyrene monomer and a styrene monomer.
- the polymer is preferably obtained by radical polymerization of an oxystyrene monomer and a (meth) acrylate monomer.
- the polymer for electronic materials obtained by the above production method is provided.
- the metal ion impurity concentration in the polymer for electronic materials is preferably 10 ppb or less.
- the polymer for electronic material is preferably used as a film forming material for semiconductor lithography.
- the polymer for electronic material is preferably used as a material for flat panel display.
- metal ion impurities in a copolymer for electronic materials can be efficiently removed by a simple and inexpensive method without requiring extensive modification of a manufacturing apparatus or a time-consuming process.
- a copolymer for electronic materials having a low content of impurities can be produced.
- the method for producing a polymer for electronic materials of the present invention includes at least a polymerization step and a purification step.
- a polymerization step includes at least a polymerization step and a purification step.
- the polymerization step of the present invention is a step of polymerizing a monomer to obtain a polymer, and can be carried out by a known method.
- a batch temperature raising method in which a monomer is dissolved in a solvent together with a polymerization initiator and heated and polymerized as it is, and a dropping polymerization method in which the monomer and the polymerization initiator are dropped into a heated solvent for polymerization.
- the monomer is dissolved in a solvent together with a polymerization initiator as necessary, and dropped into a heated solvent to polymerize the monomer and the polymerization initiator separately.
- Examples include an independent dropping method in which the polymer is dissolved in a solvent as needed and dropped separately into a heated solvent for polymerization. In the present invention, the dropping polymerization method is preferred.
- the batch heating method is in the polymerization system, and the mixed dropping method is in contact with a low concentration radical in a state where the concentration of the unreacted monomer is high in the dropping liquid storage tank before dropping into the polymerization system. Therefore, a high molecular weight body (high polymer) having a molecular weight of 100,000 or more, which is one of the causes of pattern defects, tends to be generated.
- the independent dropping method the polymerization initiator and the monomer do not coexist in the dropping liquid storage tank, and the unreacted monomer concentration is kept low even when dropped into the polymerization system. Since it is difficult, the independent dropping method is particularly preferable as the polymerization method in the present invention.
- the mixing dropping method and the independent dropping method the composition of the monomer dropped along with the dropping time, the composition ratio of the monomer, the polymerization initiator, and the chain transfer agent may be changed.
- a conventionally well-known thing can be used for a polymerization initiator.
- radical polymerization initiators such as azo compounds and peroxides are preferable.
- Specific examples of polymerization initiators for azo compounds include 2,2′-azobisisobutyronitrile, 2,2′-azobis (2-methylbutyronitrile), dimethyl 2,2′-azobis (2-methyl). Propionate), 1,1′-azobis (cyclohexane-1-carbonitrile), 4,4′-azobis (4-cyanovaleric acid), and the like.
- peroxide polymerization initiators include decanoyl peroxide, lauroyl peroxide, benzoyl peroxide, bis (3,5,5-trimethylhexanoyl) peroxide, succinic acid peroxide, and tert-butyl peroxide.
- examples include -2-ethylhexanoate, tert-butyl peroxypivalate, 1,1,3,3-tetramethylbutylperoxy-2-ethylhexanoate, and the like. These can be used alone or in combination.
- the polymerization initiator of an azo compound is more preferable because of excellent handling safety.
- the amount of the polymerization initiator used can be selected according to the target molecular weight, the type of monomer, polymerization initiator, chain transfer agent, solvent and the like, the repeating unit composition, the polymerization temperature, the dropping rate and the like.
- Examples of the acid catalyst used in the condensation reaction include mineral acids such as sulfuric acid, phosphoric acid and perchloric acid, organic sulfonic acids such as methanesulfonic acid, p-toluenesulfonic acid and p-toluenesulfonic acid monohydrate, and formic acid. Carboxylic acids such as oxalic acid are used. Of these, methanesulfonic acid and p-toluenesulfonic acid monohydrate are preferably used.
- a commonly used Lewis acid capable of cationic polymerization of both oxystyrene monomers and vinyl ether monomers can be used without particular limitation.
- organometallic halides such as EtAlCl 2 , Et 1.5 AlCl 1.5 , TiCl 4 , TiBr 4 , BCl 3 , BF 3 , BF 3 .OEt 2 , SnCl 2 , SnCl 4 , SbCl 5 , metal halides such as SbF 5 , WCl 6 , TaCl 5 , VCl 5 , FeCl 3 , ZnBr 2 , AlCl 3 , and AlBr 3 can be preferably used.
- Lewis acids may be used alone or in combination with a plurality of Lewis acids, but it is more preferable to use a combination of an organometallic halide and a metal halide, and in particular, EtAlCl 2 and SnCl 4. These mixed systems are preferred.
- the polymerization initiator is preferably added to the polymerization system in a state dissolved in an organic solvent.
- the organic solvent that dissolves the polymerization initiator is not particularly limited as long as it dissolves the polymerization initiator. Specific examples include acetone, methyl ethyl ketone, methyl isobutyl ketone, methyl isoamyl ketone, methyl amyl ketone, cyclohexanone and other ketones, methanol, ethanol, isopropanol and other alcohols, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, propylene glycol.
- Ether alcohols such as monomethyl ether and propylene glycol monoethyl ether, ether esters such as ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, propylene glycol monomethyl ether acetate and propylene glycol monoethyl ether acetate, methyl acetate and ethyl acetate , Propyl acetate, isopropyl acetate, butyl acetate Esters such as methyl propionate, methyl lactate and ethyl lactate, ethers such as tetrahydrofuran, 1,4-dioxane and ethylene glycol dimethyl ether, aromatic hydrocarbons such as toluene and xylene, N, N-dimethylformamide, acetonitrile and the like Can be mentioned. Each of these solvents may be used alone, or a plurality of solvents may be mixed and used. Furthermore, you may mix water in the range which
- a known chain transfer agent can be used as necessary.
- thiol compounds are preferred, and a wide range of known thiol compounds can be selected. Specific examples include t-dodecyl mercaptan, mercaptoethanol, mercaptoacetic acid, mercaptopropionic acid, and the like.
- a thiol compound having a structure in which a 2-hydroxy-1,1,1,3,3,3-hexafluoro-2-propyl group is bonded to a saturated aliphatic hydrocarbon is effective in suppressing lithography pattern roughness and defects. Is particularly preferable.
- the amount of the chain transfer agent used can be selected according to the target molecular weight, the types of monomers, polymerization initiators, chain transfer agents and solvents, the repeating unit composition, the polymerization temperature, the dropping rate and the like.
- the monomer and the polymerization initiator in the dropping liquid are themselves liquid, they can be supplied as they are without dissolving in the solvent.
- the monomer or polymerization initiator is a viscous liquid. If it is solid, it must be dissolved in a solvent.
- the concentration of the monomer or polymerization initiator is preferably higher in terms of productivity, but if the concentration is too high, the solution viscosity becomes high and the operability deteriorates, or the monomer or polymerization initiator is In the case of a solid, it may be precipitated, or it may take a long time for diffusion in the polymerization system, and a high polymer may be easily formed.
- each monomer and the polymerization initiator are sufficiently dissolved, do not precipitate during the supply, and easily diffuse in the polymerization system within a viscosity range in which there is no problem in the supply operation.
- the specific concentration varies depending on the combination of the solute and the solvent in each solution, but usually the total concentration of all monomers and the polymerization initiator concentration are, for example, 5 to 60% by mass, preferably 10 to 50% by mass, respectively. It prepares so that it may become the range of.
- Examples of the method of preheating the monomer solution include a method of heating the monomer solution with a heat exchanger or the like immediately before supplying the monomer solution into the storage tank or the polymerization system.
- the preheating temperature is preferably 25 ° C. or higher, and more preferably 30 ° C. or higher.
- it when preheating in the storage tank, it is preferably 50 ° C. or lower, more preferably 40 ° C. or lower.
- the initiator solution can also be preheated, but if the temperature is too high, the polymerization initiator will be decomposed before the supply, so it is usually 40 ° C. or lower, preferably 30 ° C. or lower, more preferably 25 It shall be below °C.
- the dropping time in the mixed dropping method and the independent dropping method is a short time, the molecular weight distribution tends to be widened, and a large amount of solution is dropped at one time, which is not preferable.
- the time is long, it is not preferable because an excessive heat history is applied to the copolymer and productivity is lowered. Therefore, it is selected from the range of usually 0.5 to 24 hours, preferably 1 to 12 hours, particularly preferably 2 to 8 hours.
- the temperature is maintained for a certain period of time, or the temperature is further raised, and aging is performed to remove the remaining unreacted monomer. It is preferable to react. If the aging time is too long, the production efficiency per hour is lowered, and an unnecessarily high heat history is applied to the copolymer. Therefore, it is usually selected within the range of 12 hours, preferably within 6 hours, particularly preferably within the range of 1 to 4 hours.
- the solvent used for the polymerization reaction is not particularly limited as long as it is a solvent that can stably dissolve the raw material monomer, the obtained copolymer, the polymerization initiator, and the chain transfer agent.
- Specific examples of the polymerization solvent include water, acetone, methyl ethyl ketone, methyl isobutyl ketone, methyl isoamyl ketone, methyl amyl ketone, cyclohexanone and other ketones, methanol, ethanol, isopropanol and other alcohols, ethylene glycol monomethyl ether, ethylene glycol mono Ether ethers such as ethyl ether, propylene glycol monomethyl ether and propylene glycol monoethyl ether, esters such as methyl acetate, ethyl acetate, isopropyl acetate, propyl acetate, butyl acetate, methyl propionate, methyl lactate and ethyl lactate
- the amount of polymerization solvent used is not particularly limited, but if the amount of solvent used is too small, the monomer may precipitate or the viscosity may become too high to keep the polymerization system uniform. If it is too high, the conversion rate of the monomer may be insufficient, or the molecular weight of the copolymer may not be increased to a desired value. Usually, it is 0.5 to 20 parts by weight, preferably 1 to 10 parts by weight, based on 1 part by weight of the monomer.
- the amount of the polymerization solvent (hereinafter sometimes referred to as initial stretching solvent) to be initially loaded in the reaction tank may be at least the minimum amount capable of stirring, but more than necessary.
- the amount of the monomer solution that can be supplied is decreased, and the production efficiency is lowered, which is not preferable.
- a part of the monomer may be mixed in advance with the initial tension solvent.
- the polymerization temperature can be appropriately selected depending on the boiling point of the solvent, monomer, chain transfer agent, etc., the half-life temperature of the polymerization initiator, and the like. Since polymerization is difficult to proceed at low temperatures, there is a problem in productivity, and when the temperature is higher than necessary, there is a problem in terms of stability of monomers and copolymers. Therefore, it is preferably selected in the range of 40 to 160 ° C., particularly preferably 60 to 120 ° C. Since the polymerization temperature greatly affects the molecular weight and copolymer composition of the copolymer, it must be precisely controlled.
- the polymerization reaction is generally an exothermic reaction and the polymerization temperature tends to increase, it is difficult to control to a constant temperature. Therefore, in the present invention, as the polymerization solvent, at least one compound having a boiling point close to the target polymerization temperature is contained, and the polymerization temperature is set to be equal to or higher than the initial boiling point of the compound at the polymerization pressure. Is preferred. According to this method, an increase in the polymerization temperature can be suppressed by the latent heat of vaporization of the polymerization solvent.
- the polymerization pressure is not particularly limited and may be normal pressure, increased pressure, or reduced pressure, but is usually normal pressure.
- radical polymerization when radicals are generated from the initiator, nitrogen gas is generated in the case of an azo type, and oxygen gas is generated in the case of a peroxide diameter, in order to suppress fluctuations in the polymerization pressure, It is preferable that the polymerization system is an open system and the reaction is performed near atmospheric pressure.
- a conventionally known polymerization reaction apparatus can be used in the method for producing a polymer for electronic materials of the present invention.
- a polymerization reaction apparatus including at least a storage tank for a solution containing a raw material monomer, a storage tank for a solution containing a polymerization initiator, and a polymerization reaction tank is used. Is preferred. This is because the use of such an apparatus can reduce the manufacturing process procedure, time, and cost.
- the polymer obtained by the polymerization reaction contains a polymerization solvent, an unreacted monomer, an oligomer, a polymerization initiator, a chain transfer agent, a reaction byproduct, a metal impurity, and the like.
- these impurities, particularly metal impurities can be removed by the following purification step.
- a strong acid having a pKa of 0 or less is added to a polymer solution containing a polymer. Subsequently, the polymer solution to which the strong acid has been added is subjected to an ion exchange treatment to reduce the metal ion impurity concentration.
- metal ions that are particularly reduced by such treatment include Fe, Ni, Zn, Sn, Ti, Ag, and W.
- the pKa of the strong acid added to the polymer solution is 0 or less, preferably ⁇ 15 to 0, more preferably ⁇ 10 to 0, and further preferably ⁇ 5 to 0.
- the ion exchange treatment is preferably performed using an ion exchange resin.
- an ion exchange resin a batch method, a fixed bed flow method (column), and other methods can be appropriately selected.
- the ion exchange resin cationic and anionic properties can be used alone or in combination, but an anionic ion exchange resin is preferably used.
- an anionic ion exchange resin By using an anionic ion exchange resin, the effect of reducing the metal ion impurity concentration is great, and at the same time (in one step), the added strong acid can also be removed, so that the purification step can be simplified.
- the polymerization reaction solution may be subjected to conventional filtration / reprecipitation treatment. Specifically, the polymerization reaction solution is diluted by adding a good solvent as necessary, and then brought into contact with a poor solvent to precipitate the copolymer as a solid, and impurities are extracted into the poor solvent phase (hereinafter, “ This is performed by extracting impurities into the poor solvent phase as a liquid-liquid two phase.
- precipitation extraction treatment after separating the precipitated solid from a poor solvent by a method such as filtration or decantation, the solid is redissolved with a good solvent and further added with a poor solvent, and subjected to precipitation extraction treatment, or Further, the precipitated solid can be further purified by a step of washing with a poor solvent.
- a poor solvent may be added to the obtained copolymer solution and further purified by precipitation extraction or liquid-liquid two-phase separation. it can.
- Examples of the poor solvent used in the purification step include water, compounds having a hydroxyl group such as methanol, ethanol, isopropanol, ethylene glycol, and ethyl lactate, pentane, n-hexane, iso-hexane, n-heptane, cyclopentane, and ethylcyclohexane.
- Examples include linear, branched or cyclic saturated hydrocarbons, or aromatic hydrocarbons such as toluene and xylene.
- These solvents can be used alone or in admixture of two or more.
- a poor solvent can be mixed and used for a good solvent.
- the type and amount of the poor solvent used in the purification process are not particularly limited as long as the copolymer can be separated from the low molecular weight compound, but the solubility of the copolymer in the poor solvent, the type and amount of the solvent used for the polymerization, and the type of impurities It can be appropriately selected depending on the amount and the like.
- the amount of the poor solvent is small, the separation of impurities such as the polymerization solvent and unreacted monomer is insufficient, and when the amount is too large, the waste liquid increases, which is not preferable in terms of workability and cost.
- the weight is 0.5 to 50 times, preferably 1 to 20 times, more preferably 2 to 10 times the weight of the total amount of the polymerization reaction solution diluted with a good solvent as necessary. is there.
- the temperature of the purification process greatly affects the molecular weight of the copolymer, the molecular weight distribution, the removal rate of impurities such as residual monomers and residual residues of the initiator, and various characteristics in lithography, so it must be strictly controlled. is there. If the temperature of the purification process is too low, the solubility of the impurities in the precipitation extraction solvent and the washing solvent becomes insufficient, and the impurities are not sufficiently removed. Is eluted with the precipitation extraction treatment solvent and the washing solvent, and the compositional balance in the low molecular region of the copolymer is lost, and the yield is unfavorable. Therefore, the purification step is preferably carried out at a temperature in the range of 0 to 40 ° C., preferably in the range of 0 to 30 ° C.
- the thus-purified copolymer can be dried and taken out as a powder, or can be taken out again as a solution by adding a good solvent before or after drying.
- a good solvent used for re-dissolution, the above-mentioned polymerization solvent and the solvent exemplified in the coating film forming solvent described later can be used.
- the solvent of the copolymer solution may be replaced with a film-forming solvent suitable for the lithography composition described later.
- the substitution method is such that the copolymer solution is heated under reduced pressure to distill off low-boiling substances such as the solvent used for purification, and while supplying the film-forming solvent, the initial solvent and the solvent supplied. Are distilled off together. Low-boiling impurities such as the solvent used in the purification can be removed, and the copolymer can be finished into a film-forming solution.
- the solvent for forming the coating film is not particularly limited as long as it dissolves the copolymer. However, usually considering the boiling point, the influence on the semiconductor substrate and other coating films, and the absorption of radiation used in lithography. Selected.
- solvents commonly used for coating formation include propylene glycol monomethyl ether acetate, propylene glycol monomethyl ether, propylene glycol n-butyl ether, dipropylene glycol n-propyl ether, dipropylene glycol n-butyl ether, ethyl lactate And solvents such as methyl amyl ketone, ⁇ -butyrolactone, cyclohexanone and 4-methyl-2-pentanol.
- the copolymer when taken out as a powder after purification, it can be mixed with a coating film forming solvent and dissolved to be finished into a coating film forming solution.
- the copolymer solution or the above-mentioned coating film forming solution
- a filter in order to remove undesired microgels such as high polymers, which may cause resist pattern defects.
- the filtration accuracy of the filter is 0.2 ⁇ m or less, preferably 0.1 ⁇ m or less, particularly preferably 0.05 ⁇ m or less.
- the material of the filter include polyolefins such as polyethylene and polypropylene, polar group-containing resins such as polyamide, polyester and polyacrylonitrile, and fluorine-containing resins such as fluorinated polyethylene, and polyamide is particularly preferable.
- polyamide-based filters examples include (hereinafter referred to as “trademark”), ULTIM PLEAT P-Nylon 66 manufactured by Nippon Pole Co., Ltd., Ultipore N66, Life Assure PSN series, Life Assure EF series manufactured by Cuno Co., Ltd. Can do.
- polyolefin filter examples include Microguard Plus HC10 and Optimizer D manufactured by Nihon Entegris Co., Ltd. These filters may be used alone or in combination of two or more.
- the metal ion impurity concentration in the polymer is preferably 10 ppb or less, more preferably 5 ppb or less, and even more preferably 2 ppb or less.
- the metal ions to be reduced include Fe, Ni, Zn, Sn, Ti, Ag, and W.
- the metal species having a large reduction effect varies depending on the type of polymer, the effect of reducing heavy metal species is particularly great.
- Such polymer for electronic materials with reduced metal ion impurity concentration can be used in all fields where it is necessary to avoid contamination and influence by metal ions. It can be suitably used as a forming material, a flat panel display material, a sealing material, and a curing material.
- the structure of the polymer is not particularly limited, but is preferably a structure in which the polymer is hardly decomposed by the action of a strong acid in the purification step.
- the polymer is preferably obtained by addition condensation reaction of an aromatic monomer and an aldehyde and / or ketone monomer, and a phenol monomer and an aldehyde and / or ketone A phenol novolac resin obtained by addition condensation reaction with a monomer is more preferable.
- the aromatic monomer preferably has a benzene nucleus, more preferably has a phenol nucleus, and may have two or more of these.
- the phenolic monomer include 1,1,2,2-tetrakis (4-hydroxyphenyl) ethane, 1,1,2,2-tetrakis (3-methyl-4-hydroxyphenyl) ethane, 1, 1,2,2-tetrakis (4-hydroxymethylphenyl) ethane, 1,1,3,3-tetrakis (4-hydroxyphenyl) propane, ⁇ , ⁇ , ⁇ ', ⁇ '-tetrakis (4-hydroxyphenyl) -P-xylene, ⁇ , ⁇ , ⁇ ', ⁇ '-tetrakis (3-methyl-4-hydroxyphenyl) -p-xylene, ⁇ , ⁇ , ⁇ ', ⁇ '-tetrakis (4-methoxyphenyl) -p -Xylene, ⁇ , ⁇ , ⁇ ',
- aromatic monomer examples include heteroaromatic compounds such as phenothiazine, carbazole, indole, pyridine, pyrrole and quinoline, aniline, N-methylaniline, N-ethylaniline, Nn-propylaniline, N-isopropylaniline, dimethylphenylamine, ethylmethylphenylamine, diethylphenylamine, diphenylamine, phenylnaphthylamine, dinaphthylamine, 3-hydroxydiphenylamine, diphenylmethylamine, diphenylethylamine, n-propyldiphenylamine, isopropyldiphenylamine, triphenylamine, Examples include arylamines such as phenylanthraamine, naphthylanthraamine, and diphenylanthraamine. These monomers may be used alone or in combination of two or more.
- aldehyde monomer examples include formaldehyde, paraformaldehyde, acetaldehyde, propylaldehyde, butyraldehyde, isobutyraldehyde, valeraldehyde, capronaldehyde, 2-methylbutyraldehyde, hexylaldehyde, undecane aldehyde, 7-methoxy-3, 7-dimethyloctylaldehyde, cyclohexanealdehyde, 3-methyl-2-butyraldehyde, glyoxal, malonaldehyde, succinaldehyde, glutaraldehyde, glutaraldehyde, adipine aldehyde, saturated aliphatic aldehydes, acrolein, methacrolein, etc.
- Heterocyclic aldehydes such as unsaturated aliphatic aldehydes, furfural, pyridine aldehyde, benzaldehyde, naphthyl alde , 9-anthrylaldehyde, phenanthrylaldehyde, salicylaldehyde, phenylacetaldehyde, 3-phenylpropionaldehyde, tolylaldehyde, (N, N-dimethylamino) benzaldehyde, acetoxybenzaldehyde, 1-pyrenealdehyde, trifluoromethylbenzaldehyde Aromatic aldehydes, etc.
- ketone monomer diaryl ketones are preferable, and examples thereof include diphenyl ketone, phenyl naphthyl ketone, dinaphthyl ketone, phenyl tolyl ketone, ditolyl ketone, and 9-fluorenone. These monomers may be used alone or in combination of two or more.
- the polymer is preferably obtained by living cationic polymerization of an oxystyrene monomer and a vinyl ether monomer.
- the oxystyrene monomer include hydroxystyrenes such as p-hydroxystyrene, m-hydroxystyrene, o-hydroxystyrene, p-isopropenylphenol, m-isopropenylphenol, o-isopropenylphenol, p -Methoxystyrene, m-methoxystyrene, p-ethoxystyrene, m-ethoxystyrene, p-propoxystyrene, m-propoxystyrene, p-isopropoxystyrene, m-isopropoxystyrene, pn-butoxystyrene, m- Alkoxyst
- p-hydroxystyrene, m-hydroxystyrene, p-isopropenylphenol, m-isopropenylphenol, p-tert-butoxystyrene, m-tert-butoxystyrene, p-acetoxystyrene, m-acetoxystyrene, etc. are used. It is preferable. These monomers may be used alone or in combination of two or more.
- vinyl ether monomers include alkyl such as methyl vinyl ether, ethyl vinyl ether, propyl vinyl ether, isopropyl vinyl ether, n-butyl vinyl ether, sec-butyl vinyl ether, tert-butyl vinyl ether, isobutyl vinyl ether, n-amyl vinyl ether, isoamyl vinyl ether, and the like.
- Vinyl ethers trifluoromethyl vinyl ether, pentafluoroethyl vinyl ether, fluoroalkyl vinyl ethers such as 2,2,2-trifluoroethyl vinyl ether, 2-methoxyethyl vinyl ether, 2-ethoxyethyl vinyl ether, 2-tetrahydropyranyl vinyl ether, 2 -Alkoxyalkyl vinyl ethers such as tetrahydrofuranyl vinyl ether Cyclopentyl vinyl ether, cyclohexyl vinyl ether, cycloheptyl vinyl ether, cyclooctyl vinyl ether, 2-bicyclo [2.2.1] heptyl vinyl ether, 2-bicyclo [2.2.2] octyl vinyl ether, 8-tricyclo [5.2.1.
- decanyl vinyl ether 1-adamantyl vinyl ether, cycloalkyl vinyl ethers such as 2-adamantyl vinyl ether, aryls such as phenyl vinyl ether, 4-methylphenyl vinyl ether, 4-trifluoromethylphenyl vinyl ether, 4-fluorophenyl vinyl ether
- Examples include vinyl ethers, arylalkyl vinyl ethers such as benzyl vinyl ether and 4-fluorobenzyl vinyl ether.
- the polymer is preferably obtained by radical polymerization of an oxystyrene monomer and a styrene monomer.
- oxystyrene monomer those mentioned above can be used.
- styrene monomer styrenes other than oxystyrene monomers can be used, and examples thereof include styrene, 4-tertbutylstyrene, 4-vinylbenzoic acid and the like. These monomers may be used alone or in combination of two or more.
- the polymer is preferably obtained by radical polymerization of an oxystyrene monomer and a (meth) acrylate monomer.
- oxystyrene monomer those mentioned above can be used.
- Examples of (meth) acrylate monomers include methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, hexyl (meth) acrylate, octyl (meth) acrylate, ethylhexyl (meth) acrylate, and other alkyl ( Meth) acrylates, cycloheptyl (meth) acrylate, cyclohexyl (meth) acrylate, cyclopentyl (meth) acrylate, cycloalkyl (meth) acrylates such as cyclooctyl (meth) acrylate, spiro [4.4] nonyl (meth) acrylate, spiro [4.5] decanyl (meth) acrylate, having a spiro C 8-16 hydrocarbon ring such spirobifluorene cyclohexyl (meth) acrylate (me
- Weight average molecular weight / dispersion degree The weight average molecular weight (Mw) and dispersity (Mw / Mn) of the polymer synthesized below were measured by GPC (gel permeation chromatography) using polystyrene as a standard product.
- An analytical sample was prepared by dissolving 0.02 g of the purified polymer in 1 ml of tetrahydrofuran. The sample injection amount into the apparatus was 60 ⁇ l.
- Measuring device “HPLC-8320GPC” manufactured by Tosoh Corporation Detector: Differential refractive index (RI) detector Column: Shodex GPC LF804 ⁇ 3 (Showa Denko) Eluent: Tetrahydrofuran Flow rate: 1.0 mL / min Temperature: 40 ° C Calibration curve: Created using polystyrene standard sample (manufactured by Tosoh Corporation)
- composition ratio The composition ratio of the polymer synthesized below was analyzed by 13 C-NMR.
- An analytical sample was prepared by dissolving 1 g of the purified polymer and 0.1 g of Cr (III) acetylacetonate in a mixed solvent of 1.5 g of heavy acetone and 0.5 g of methyl ethyl ketone.
- Device Bruker "AVANCE400" Nuclide: 13 C Measurement method: Inverse gate decoupling Integration count: 6000 times Measurement tube diameter: 10 mm ⁇
- Metal ion concentration The metal ion concentration of the polymer synthesized below was measured by ICP mass spectrometry.
- ICP mass spectrometer “Agilent 7500cs” manufactured by Agilent Technologies
- Example 1 A eggplant flask equipped with a thermometer, a condenser and a stirrer was charged with 104 parts of 9,9-bis (4-hydroxyphenyl) fluorene, 69 parts of 1-pyrene aldehyde, and propylene glycol monomethyl ether acetate (hereinafter “PGMEA”). 133 parts were charged, the inside of the system was purged with nitrogen while stirring, and the temperature was raised to 120 ° C. Next, 40 parts of methanesulfonic acid was gradually added dropwise and reacted at 120 ° C. for 7 hours. Thereafter, 148 parts of PGMEA was added and diluted.
- PGMEA propylene glycol monomethyl ether acetate
- This solution was dropped into a mixed solution of 741 parts of methanol and 248 parts of ion-exchanged water (hereinafter referred to as “IEW”) to perform precipitation extraction. Further, the precipitated polymer was washed with 494 parts of methanol.
- IEW ion-exchanged water
- the obtained polymer was redissolved in 687 parts of PGMEA and subjected to ion exchange treatment in advance using Amberlyst B20 (manufactured by Organo Corporation, anionic ion exchange resin) (Sample 1).
- Table 1 shows the result of measuring the concentration of each metal ion of Sample 1.
- 1.2 parts of methanesulfonic acid is further added to Sample 1, and ion exchange treatment is again performed through Amberlyst B20 (manufactured by Organo) to reduce the metal ion impurity concentration.
- the added methanesulfonic acid is added.
- Example 2 The results of measuring the concentration of each metal ion of the obtained polymer (Sample 2) are shown in Table 1.
- the Fe concentration was 0.8 ppb based on the mass of the polymer, and it was found that Fe can be removed particularly efficiently.
- Example 2 A eggplant flask equipped with a thermometer, a condenser tube and a stirrer was charged with 104 parts of 9,9-bis (4-hydroxyphenyl) fluorene, 69 parts of 1-pyrenealdehyde, and 133 parts of PGMEA, and the inside of the system was stirred with nitrogen. The temperature was raised to 120 ° C. Next, 40 parts of methanesulfonic acid was gradually added dropwise and reacted at 120 ° C. for 7 hours. Thereafter, 148 parts of PGMEA was added and diluted. This solution was added dropwise to a mixed solution of 741 parts of methanol and 248 parts of IEW to perform precipitation extraction. Further, the precipitated polymer was washed with 494 parts of methanol.
- Example 2 The results of measuring the concentration of each metal ion of the obtained polymer (Sample 2) are shown in Table 1.
- the Fe concentration was 0.9 ppb based on the mass of the polymer, and it was found that Fe can be removed particularly efficiently.
- the obtained polymer was redissolved in 687 parts of PGMEA and subjected to ion exchange treatment in advance through Amberlyst B20 (manufactured by Organo Corporation) (Sample 1). Subsequently, the sample 1 was again subjected to a metal removal treatment through Amberlyst B20 (manufactured by Organo) (sample 2).
- the obtained polymer was redissolved in 687 parts of PGMEA and subjected to ion exchange treatment in advance through Amberlyst B20 (manufactured by Organo Corporation) (Sample 1). Subsequently, Sample 1 was again subjected to metal removal treatment through Amberlyst 15J-WET (Sample 2).
- Table 1 shows the results of measuring the concentration of each metal ion of the obtained polymer (Sample 2). It was found that no reduction effect was observed for any metal species.
- Example 3 A eggplant flask equipped with a thermometer, a condenser and a stirrer was charged with 34 parts of phenothiazine, 20 parts of 1-pyrenealdehyde, 15 parts of 4-trifluoromethylbenzaldehyde, and 67 parts of PGMEA, and the system was purged with nitrogen while stirring. The temperature was raised to 120 ° C. Next, 1 part of methanesulfonic acid was gradually added dropwise and reacted at 120 ° C. for 6 hours. Thereafter, 59 parts of PGMEA was added and diluted. This solution was added dropwise to 390 parts of methanol to perform precipitation extraction. Further, 196 parts of methanol was used to wash the precipitated polymer.
- the obtained polymer was redissolved in 277 parts of PGME and subjected to ion exchange treatment in advance using Amberlyst B20 (manufactured by Organo Corporation) (Sample 1).
- Table 2 shows the measurement results of the metal ion concentrations of Sample 1.
- 0.4 part of methanesulfonic acid was added to Sample 1, and ion exchange treatment was performed again through Amberlyst B20 (manufactured by Organo) to reduce the metal ion impurity concentration.
- the added methanesulfonic acid Removed (Sample 2).
- Table 2 shows the result of measuring the concentration of each metal ion of the obtained polymer (Sample 2). This polymer was found to have a great effect of reducing the metal ion concentrations of Na, Ca, Zn, Ti, Ag, and W.
- Example 4 In a eggplant flask equipped with a thermometer, a condenser and a stirrer, 1550 parts of a methanol solution of 25% p-hydroxystyrene, 51 parts of styrene, and 11 parts of azobisisobutyronitrile (hereinafter referred to as “AIBN”) The system was purged with nitrogen while charging and stirring, and the temperature was raised to 80 ° C. After the internal temperature reached 80 ° C., a mixed solution of 43 parts of 25% p-hydroxystyrene in methanol, 1 part of styrene and 2 parts of AIBN was added dropwise over 2 hours. After completion of dropping, aging was carried out at 80 ° C. for 4 hours. This solution was dropped into 1695 parts of toluene to perform precipitation extraction, and the supernatant liquid was decanted. Then, it was dissolved with 130 parts of acetone and washed with 1695 parts of toluene four times.
- Table 3 shows the result of measuring the concentration of each metal ion of the obtained polymer (Sample 2). In this polymer, it turned out that the reduction effect of the metal ion density
- Example 5 A eggplant flask equipped with a thermometer, a condenser and a stirrer was charged with 50 parts of a methanol solution of 25% p-hydroxystyrene, 25 parts of methyl methacrylate and 40 parts of acetone, and the system was purged with nitrogen while stirring. The temperature was raised to ° C. After the internal temperature reached 80 ° C., a mixed solution of 1 part azobis (isobutyric acid) dimethyl and 10 parts acetone was added dropwise over 2 hours. After completion of dropping, aging was carried out at 80 ° C. for 4 hours. This solution was dropped into 126 parts of toluene to perform precipitation extraction, and the supernatant liquid was decanted. Then, it was dissolved with 25 parts of acetone and washed with 126 parts of toluene four times.
- Table 4 shows the results of measuring the concentration of each metal ion of the obtained polymer (Sample 2). In this polymer, it turned out that the reduction effect is large about the metal ion concentration of Ca, Fe, Ni, Zn, and Sn.
- Example 6 A glass container with a three-way stopcock was prepared, and after substituting with argon, it was heated in an argon atmosphere to remove adsorbed water in the glass container.
- EVE ethyl vinyl ether
- M ethyl acetate 1.0M
- M 1,4-bis (1-acetoxyethoxy) butane 4 millimolar
- Et1.5AlCl1.5 ethylaluminum sesquichloride
- the EVE conversion was monitored in a time-sharing manner using gas chromatography (GC), and when the conversion of the EVE monomer was completed, p-tert-butoxystyrene (hereinafter referred to as “PTBOS”) 1.28M was reacted. It was added to the solution and the reaction was continued at a reaction temperature of 0 ° C. When 106 hours had passed after the addition of PTBOS, a toluene solution (20 mM) of Et1.5AlCl1.5 was further added and the reaction was continued for 48 hours.
- GC gas chromatography
- reaction solution was cooled to room temperature, and the reaction solution was poured into 1200 parts by mass of water to precipitate a polymer, followed by filtration. The resulting precipitate was dried under reduced pressure to obtain a p-hydroxystyrene / EVE / p-hydroxystyrene triblock polymer.
- Table 5 shows the result of measuring the concentration of each metal ion of the obtained polymer (Sample 2). In this polymer, the concentration of Fe, Ni and Sn was particularly high, but it was found that the reduction effect was great.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Emergency Medicine (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Inorganic Chemistry (AREA)
- Optics & Photonics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Materials For Photolithography (AREA)
- Engineering & Computer Science (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
Abstract
Description
単量体を重合反応させて重合体を得る、重合工程と、
前記重合体を含む重合体溶液に、0以下のpKaを有する強酸を添加した後、イオン交換処理を施して、金属イオン不純物濃度を低減させる、精製工程と、
を含んでなる、電子材料用重合体の製造方法が提供される。
上記の製造方法により得られた電子材料用重合体が提供される。
本発明の電子材料用重合体の製造方法は、少なくとも、重合工程と、精製工程とを含むものである。以下、重合体の製造方法の各工程および重合体の構造について、詳細に説明する。
本発明の重合工程は、単量体を重合反応させて重合体を得る工程であり、公知の方法にて実施できる。例えば、単量体を重合開始剤と共に溶媒に溶解し、そのまま加熱して重合させる一括昇温法、単量体及び重合開始剤を、加熱した溶媒中に滴下して重合させる滴下重合法がある。さらに、滴下重合法には、単量体を重合開始剤と共に必要に応じて溶媒に溶解し、加熱した溶媒中に滴下して重合させる混合滴下法、単量体と重合開始剤を別々に、必要に応じて溶媒に溶解し、加熱した溶媒中に別々に滴下して重合させる独立滴下法、等が挙げられる。本発明においては、滴下重合法が好ましい。
本発明の電子材料用重合体の製造方法には、従来公知の重合反応装置を用いることができる。例えば、上記の滴下重合法においては、少なくとも、原料単量体を含む溶液の貯蔵槽と、重合開始剤を含む溶液の貯蔵槽と、重合反応槽と、を備えてなる重合反応装置を用いることが好ましい。このような装置を用いれば、製造工程の手順や時間、コストを削減できるからである。
重合反応して得られた重合体は、重合溶媒、未反応単量体、オリゴマー、重合開始剤、連鎖移動剤、反応副生物、および金属不純物等を含んでいる。本発明においては、下記の精製工程によってこれらの不純物、特に金属不純物を取り除くことができる。
本発明により製造される電子材料用重合体は、上記の精製工程を経るため、金属不純物の含有量を低減することができる。重合体中の金属イオン不純物濃度は、好ましくは10ppb以下であり、より好ましくは5ppb以下であり、さらに好ましくは2ppb以下である。特に、低減される金属イオンとしては、Fe、Ni、Zn、Sn、Ti、Ag、およびW等が挙げられる。低減効果の大きい金属種は重合体の種類によっても異なるが、特に重金属種の低減効果が大きい。このような金属イオン不純物濃度が低減した電子材料用重合体は、金属イオンによる汚染や影響を避ける必要のあるすべての分野に使用できるが、半導体リソグラフィー用成膜材料、下層膜形成材料、絶縁膜形成材料、フラットパネルディスプレイ用材料、封止材料、および硬化材等として好適に用いることができる。
重合体は、芳香族系単量体とアルデヒド系および/またはケトン系単量体とを付加縮合反応させて得られたものであることが好ましく、フェノール系単量体とアルデヒド系および/またはケトン系単量体とを付加縮合反応させたフェノールノボラック樹脂であることがより好ましい。
重合体は、オキシスチレン系単量体とビニルエーテル系単量体とをリビングカチオン重合させて得られたものであることが好ましい。オキシスチレン系単量体としては、例えば、p-ヒドロキシスチレン、m-ヒドロキシスチレン、o-ヒドロキシスチレン、p-イソプロペニルフェノール、m-イソプロペニルフェノール、o-イソプロペニルフェノール等のヒドロキシスチレン類、p-メトキシスチレン、m-メトキシスチレン、p-エトキシスチレン、m-エトキシスチレン、p-プロポキシスチレン、m-プロポキシスチレン、p-イソプロポキシスチレン、m-イソプロポキシスチレン、p-n-ブトキシスチレン、m-n-ブトキシスチレン、p-イソブトキシスチレン、m-イソブトキシスチレン、p-tert-ブトキシスチレン、m-tert-ブトキシスチレン等のアルコキシスチレン類、p-メトキシメトキシスチレン、m-メトキシメトキシスチレン、p-(1-エトキシエトキシ)スチレン、m-(1-エトキシエトキ)シスチレン、p-(2-テトラヒドロピラニル)オキシスチレン、m-(2-テトラヒドロピラニル)オキシスチレン等のアルコキシアルキルオキシスチレン類、p-アセトキシスチレン、m-アセトキシスチレン、p-tert-ブチルカルボニルオキシスチレン、m-tert-ブチルカルボニルオキシスチレン等のアルカノイルオキシスチレン類、p-メトキシカルボニルオキシスチレン、m-メトキシカルボニルオキシスチレン、p-tert-ブトキシカルボニルオキシスチレン、m-tert-ブトキシカルボニルオキシスチレン等のアルコキシカルボニルオキシスチレン類、p-tert-ブトキシカルボニルメチルオキシスチレン、m-tert-ブトキシカルボニルメチルオキシスチレン等のアルコキシカルボニルアルキルオキシスチレン類、p-トリメチルシリルオキシスチレン、m-トリメチルシリルオキシスチレン、ptert-ブチルジメチルシリルオキシスチレン、m-tert-ブチルジメチルシリルオキシスチレン等のアルキルシリルオキシスチレン類等が挙げられる。特に、p-ヒドロキシスチレン、m-ヒドロキシスチレン、p-イソプロペニルフェノール、m-イソプロペニルフェノール、p-tert-ブトキシスチレン、m-tert-ブトキシスチレン、p-アセトキシスチレン、m-アセトキシスチレン等を用いることが好ましい。これらの単量体は、1種または2種以上を組み合わせて用いてもよい。
重合体は、オキシスチレン系単量体とスチレン系単量体とをラジカル重合させて得られたものであることが好ましい。オキシスチレン系単量体としては、上記で挙げたものを用いることができる。スチレン系単量体としては、オキシスチレン系単量体以外のスチレン類を用いることができ、例えば、スチレン、4-tertブチルスチレン、4-ビニル安息香酸等が挙げられる。これらの単量体は、1種または2種以上を組み合わせて用いてもよい。
重合体は、オキシスチレン系単量体と(メタ)アクリレート系単量体とをラジカル重合させて得られたものであることが好ましい。オキシスチレン系単量体としては、上記で挙げたものを用いることができる。(メタ)アクリレート系単量体としては、メチル(メタ)アクリレート、エチル(メタ)アクリレート、ブチル(メタ)アクリレート、ヘキシル(メタ)アクリレート、オクチル(メタ)アクリレート、エチルヘキシル(メタ)アクリレート等のアルキル(メタ)アクリレート類、シクロヘプチル(メタ)アクリレート、シクロヘキシル(メタ)アクリレート、シクロペンチル(メタ)アクリレート、シクロオクチル(メタ)アクリレート等のシクロアルキル(メタ)アクリレート類、スピロ[4.4]ノニル(メタ)アクリレート、スピロ[4.5]デカニル(メタ) アクリレート、スピロビシクロヘキシル(メタ)アクリレート等のスピロC8-16炭化水素環を有する(メタ)アクリレート類、ボルニル(メタ)アクリレート、ノルボルニル(メタ)アクリレート、イソボルニル(メタ)アクリレート、イソボルニルオキシエチル(メタ)アクリレート等の2環式炭化水素環を有する(メタ)アクリレート類、ジシクロペンタジエニル(メタ)アクリレート、ジシクロペンテニル(メタ)アクリレート、ジシクロペンテニルオキシアルキル(メタ)アクリレート、トリシクロデカニル(メタ)アクリレート(トリシクロ[5.2.1.02,6]デカニル(メタ)アクリレート)、トリシクロデカニルオキシエチル(メタ)アクリレート、トリシクロ[4.3.1.12,5]ウンデカニル、アダマンチル(メタ)アクリレート等の3環式炭化水素環を有する(メタ)アクリレート類、テトラシクロ[4.4.0.12,5.17,10]ドデカン、パーヒドロ-1,4-メタノ-5,8-メタノナフタレン等の4環式炭化水素環を有する(メタ)アクリレート類等が挙げられる。これらの単量体は、1種または2種以上を組み合わせて用いてもよい。
下記で合成した重合体の重量平均分子量(Mw)および分散度(Mw/Mn)は、ポリスチレンを標準品としてGPC(ゲルパーミエーションクロマトグラフィー)により測定した。精製後の重合体0.02gをテトラヒドロフラン1mlに溶解して分析用試料を調製した。装置への試料注入量は60μlとした。
測定装置:東ソー社製「HPLC-8320GPC」
検出器:示差屈折率(RI)検出器
カラム:Shodex GPC LF804×3(昭和電工社製)
溶離液:テトラヒドロフラン
流速:1.0mL/分
温度:40℃
検量線:ポリスチレン標準サンプル(東ソー社製)を用いて作成
下記で合成した重合体の組成比は13C-NMRで分析した。精製後の重合体1gとCr(III)アセチルアセトナート0.1gを、重アセトン1.5gとメチルエチルケトン0.5gの混合溶媒に溶解して分析用試料を調製した。
装置:ブルカー製「AVANCE400」
核種:13C
測定法:インバースゲートデカップリング
積算回数:6000回
測定チューブ径:10mmφ
下記で合成した重合体の金属イオン濃度をICP質量分析法により測定した。
ICP質量分析装置:アジレント・テクノロジー(株)製「Agilent7500cs」
温度計、冷却管及び撹拌装置を備えたナスフラスコに、9,9-ビス(4-ヒドロキシフェニル)フルオレン104部、1-ピレンアルデヒド69部、およびプロピレングリコールモノメチルエーテルアセテート(以下、「PGMEA」と称する)133部を仕込み、撹拌しつつ系内を窒素置換し、120℃まで加熱昇温した。次に、メタンスルホン酸40部を徐々に滴下し、120℃で7時間反応させた。その後、PGMEA148部を添加し希釈した。この溶液を、メタノール741部およびイオン交換水(以下、「IEW」と称する)248部の混合溶液に滴下し沈殿抽出処理を行った。さらに、メタノール494部を使用して、沈殿した重合体を洗浄した。
温度計、冷却管及び撹拌装置を備えたナスフラスコに、9,9-ビス(4-ヒドロキシフェニル)フルオレン104部、1-ピレンアルデヒド69部、およびPGMEA133部を仕込み、撹拌しつつ系内を窒素置換し、120℃まで加熱昇温した。次に、メタンスルホン酸40部を徐々に滴下し、120℃で7時間反応させた。その後、PGMEA148部を添加し希釈した。この溶液を、メタノール741部およびIEW248部の混合溶液に滴下し沈殿抽出処理を行った。さらに、メタノール494部を使用して、沈殿した重合体を洗浄した。
温度計、冷却管及び撹拌装置を備えたナスフラスコに、9,9-ビス(4-ヒドロキシフェニル)フルオレン104部、1-ピレンアルデヒド69部、およびPGMEA133部を仕込み、撹拌しつつ系内を窒素置換し、120℃まで加熱昇温した。次に、メタンスルホン酸40部を徐々に滴下し、120℃で7時間反応させた。その後、PGMEA148部を添加し希釈した。この溶液を、メタノール741部およびIEW248部の混合溶液に滴下し沈殿抽出処理を行った。さらに、メタノール494部を使用して、沈殿した重合体を洗浄した。
温度計、冷却管及び撹拌装置を備えたナスフラスコに、9,9-ビス(4-ヒドロキシフェニル)フルオレン104部、1-ピレンアルデヒド69部、およびPGMEA133部を仕込み、撹拌しつつ系内を窒素置換し、120℃まで加熱昇温した。次に、メタンスルホン酸40部を徐々に滴下し、120℃で7時間反応させた。その後、PGMEA148部を添加し希釈した。この溶液を、メタノール741部およびIEW248部の混合溶液に滴下し沈殿抽出処理を行った。さらに、メタノール494部を使用して、沈殿した重合体を洗浄した。
温度計、冷却管及び撹拌装置を備えたナスフラスコに、フェノチアジン34部、1-ピレンアルデヒド20部、4-トリフルオロメチルベンズアルデヒド15部、およびPGMEA67部を仕込み、撹拌しつつ系内を窒素置換し、120℃まで加熱昇温した。次に、メタンスルホン酸1部を徐々に滴下し、120℃で6時間反応させた。その後、PGMEA59部を添加し希釈した。この溶液をメタノール390部に滴下し沈殿抽出処理を行った。さらに、メタノール196部を使用して、沈殿した重合体を洗浄した。
得られた重合体(試料2)の各金属イオン濃度を測定した結果を表2に示した。本重合体では、Na、Ca、Zn、Ti、Ag、およびWの金属イオン濃度の低減効果が大きいことが分かった。
温度計、冷却管及び撹拌装置を備えたナスフラスコに、25%p-ヒドロキシスチレンのメタノール溶液1550部、スチレン51部、およびアゾビスイソブチロニトリル(以下、「AIBN」と称する)11部を仕込み、撹拌しつつ系内を窒素置換し、80℃まで加熱昇温した。80℃に内温が到達後、25%p-ヒドロキシスチレンのメタノール溶液43部、スチレン1部、およびAIBN2部の混合溶液を2時間かけて滴下した。滴下終了後、80℃で4時間熟成を実施した。この溶液をトルエン1695部に滴下し沈殿抽出処理を行い、上澄み液のデカンテーションを実施した。その後、アセトン130部で溶解させ、トルエン1695部による洗浄を4回実施した。
得られた重合体(試料2)の各金属イオン濃度を測定した結果を表3に示した。本重合体では、Ca、Zn、Sn、Ag、およびWの金属イオン濃度の低減効果が大きいことが分かった。
温度計、冷却管及び撹拌装置を備えたナスフラスコに、25%p-ヒドロキシスチレンのメタノール溶液50部、メチルメタクリレート25部、およびアセトン40部を仕込み、撹拌しつつ系内を窒素置換し、80℃まで加熱昇温した。80℃に内温が到達後、アゾビス(イソ酪酸)ジメチル1部およびアセトン10部の混合溶液を2時間かけて滴下した。滴下終了後、80℃で4時間熟成を実施した。この溶液をトルエン126部に滴下し沈殿抽出処理を行い、上澄み液のデカンテーションを実施した。その後、アセトン25部で溶解させ、トルエン126部による洗浄を4回実施した。
得られた重合体(試料2)の各金属イオン濃度を測定した結果を表4に示した。本重合体では、Ca、Fe、Ni、Zn、およびSnの金属イオン濃度について低減効果が大きいことが分かった。
三方活栓をつけたガラス容器を準備し、アルゴン置換後、アルゴン雰囲気下で加熱してガラス容器内の吸着水を除いた。容器内にエチルビニルエーテル(以下、「EVE」と称する)0.85モーラー(以下、「M」と称する)、酢酸エチル1.0M、1,4-ビス(1-アセトキシエトキシ)ブタン4ミリモーラー(以下、「mM」と称する)、トルエン60mlを入れ、系内温度が0℃に達したところで、エチルアルミニウムセスキクロライド(「Et1.5AlCl1.5」)のトルエン溶液(20mM)を加えて重合を開始した。
Claims (12)
- 単量体を重合反応させて重合体を得る、重合工程と、
前記重合体を含む重合体溶液に、0以下のpKaを有する強酸を添加した後、イオン交換処理を施して、金属イオン不純物濃度を低減させる、精製工程と、
を含んでなる、電子材料用重合体の製造方法。 - 前記強酸が、有機スルホン酸、硫酸、トリフルオロ酢酸からなる群から選択される少なくとも一種である、請求項1に記載の電子材料用重合体の製造方法。
- 前記強酸が、トリフルオロメタンスルホン酸、メタンスルホン酸、およびp-トルエンスルホン酸からなる群から選択される少なくとも一種の有機スルホン酸である、請求項1または2の記載の電子材料用重合体の製造方法。
- 前記イオン交換処理を、イオン交換樹脂を用いて行う、請求項1~3のいずれか一項に記載の電子材料用重合体の製造方法。
- 前記重合体が、芳香族系単量体とアルデヒド系および/またはケトン系単量体とを付加縮合させて得られたものである、請求項1~4のいずれか一項に記載の電子材料用重合体の製造方法。
- 前記重合体が、オキシスチレン系単量体とビニルエーテル系単量体とをリビングカチオン重合させて得られたものである、請求項1~4のいずれか一項に記載の電子材料用重合体の製造方法。
- 前記重合体が、オキシスチレン系単量体とスチレン系単量体とをラジカル重合させて得られたものである、請求項1~4のいずれか一項に記載の電子材料用重合体の製造方法。
- 前記重合体が、オキシスチレン系単量体と(メタ)アクリレート系単量体とをラジカル重合させて得られたものである、請求項1~4のいずれか一項に記載の電子材料用重合体の製造方法。
- 請求項1~8のいずれか一項に記載の製造方法により得られた、電子材料用重合体。
- 金属イオン不純物濃度が10ppb以下である、請求項9に記載の電子材料用重合体。
- 半導体リソグラフィー用成膜材料として用いられる、請求項9または10に記載の電子材料用重合体。
- フラットパネルディスプレイ用材料として用いられる、請求項9または10に記載の電子材料用重合体。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020177035781A KR102366708B1 (ko) | 2015-06-22 | 2016-04-15 | 전자 재료용 중합체의 제조 방법 및 그 제조 방법에 의해 얻어진 전자 재료용 중합체 |
| CN201680036639.2A CN107849167B (zh) | 2015-06-22 | 2016-04-15 | 电子材料用聚合物的制造方法及利用该制造方法得到的电子材料用聚合物 |
| JP2017524695A JP6772132B2 (ja) | 2015-06-22 | 2016-04-15 | 電子材料用重合体の製造方法およびその製造方法により得られた電子材料用重合体 |
| US15/735,748 US10766973B2 (en) | 2015-06-22 | 2016-04-15 | Method for producing polymer for electronic material and polymer for electronic material obtained by the production method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015125024 | 2015-06-22 | ||
| JP2015-125024 | 2015-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016208257A1 true WO2016208257A1 (ja) | 2016-12-29 |
Family
ID=57585535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2016/062058 Ceased WO2016208257A1 (ja) | 2015-06-22 | 2016-04-15 | 電子材料用重合体の製造方法およびその製造方法により得られた電子材料用重合体 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10766973B2 (ja) |
| JP (1) | JP6772132B2 (ja) |
| KR (1) | KR102366708B1 (ja) |
| CN (1) | CN107849167B (ja) |
| TW (1) | TWI712625B (ja) |
| WO (1) | WO2016208257A1 (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102586112B1 (ko) * | 2020-09-14 | 2023-10-05 | 삼성에스디아이 주식회사 | 반도체 포토레지스트용 조성물 및 이를 이용한 패턴 형성 방법 |
| CN114225496B (zh) * | 2021-12-07 | 2023-04-11 | 明士(北京)新材料开发有限公司 | 一种高性能聚合物树脂的纯化方法及纯化装置 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06289612A (ja) * | 1993-03-31 | 1994-10-18 | Nippon Zeon Co Ltd | 感光性組成物 |
| US5679766A (en) * | 1993-12-07 | 1997-10-21 | Shipley Company, L.L.C. | Purification process of novolar resins using acid treated chelating cation exchange resin |
| JP2000281739A (ja) * | 1999-03-30 | 2000-10-10 | Jsr Corp | ノボラック系重合体中の金属除去方法 |
| JP2007009083A (ja) * | 2005-06-30 | 2007-01-18 | Sanyo Chem Ind Ltd | ビニルフェノールの製造方法 |
| WO2009011186A1 (ja) * | 2007-07-13 | 2009-01-22 | Maruzen Petrochemical Co., Ltd. | Aba型トリブロック共重合体及びその製造方法 |
| JP2009521539A (ja) * | 2005-12-22 | 2009-06-04 | デュポン・エレクトロニック・ポリマーズ・エル・ピー | 安定なフォトレジスト組成物の製造法 |
| JP2010235653A (ja) * | 2009-03-30 | 2010-10-21 | Nippon Soda Co Ltd | 重合体の製造方法 |
| JP2015512980A (ja) * | 2012-03-09 | 2015-04-30 | アーゼッド・エレクトロニック・マテリアルズ(ルクセンブルグ)ソシエテ・ア・レスポンサビリテ・リミテ | ブロックコポリマーの金属除去のための方法および材料 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3078894B2 (ja) | 1991-10-07 | 2000-08-21 | 富士写真フイルム株式会社 | 不純金属成分の低減されたレジスト用感電離放射線樹脂組成物の製造方法 |
| JPH09143237A (ja) | 1995-09-29 | 1997-06-03 | Hoechst Celanese Corp | 安定した分子量を有するノボラック樹脂およびそれから製造されるフォトレジスト |
| JP2002182402A (ja) | 2000-12-18 | 2002-06-26 | Shin Etsu Chem Co Ltd | レジストのベースポリマーの精製方法 |
| JP4245596B2 (ja) | 2002-04-01 | 2009-03-25 | ダイセル化学工業株式会社 | フォトレジスト用高分子化合物 |
| DE60317651T2 (de) | 2002-04-01 | 2008-03-06 | Daicel Chemical Industries, Ltd., Sakai | Verfahren zur herstellung von fotolackpolymerverbindungen |
| US6679766B2 (en) * | 2002-04-16 | 2004-01-20 | Robert Bosch Gmbh | Diamond sleeve honing tool |
| JP2003342319A (ja) | 2002-05-28 | 2003-12-03 | Jsr Corp | 脂環式炭化水素系重合体の含有金属除去方法および感放射線性組成物 |
| KR101105925B1 (ko) | 2004-10-27 | 2012-01-17 | 엘지디스플레이 주식회사 | 액정표시장치 및 그 제조방법 |
| JP4979300B2 (ja) | 2006-08-04 | 2012-07-18 | 三菱レイヨン株式会社 | 重合体湿粉、重合体湿粉の製造方法、および重合体の製造方法 |
| JP4838095B2 (ja) | 2006-10-27 | 2011-12-14 | 東レエンジニアリング株式会社 | 半導体チップの実装装置及び実装方法 |
| JPWO2008152907A1 (ja) * | 2007-06-12 | 2010-08-26 | 東亞合成株式会社 | 導電性高分子上のレジスト膜の剥離剤、レジスト膜の剥離方法、および、パターニングした導電性高分子を有する基板 |
| SG176777A1 (en) | 2009-06-19 | 2012-01-30 | Nissan Chemical Ind Ltd | Carbazole novolak resin |
| JP5731401B2 (ja) | 2009-12-09 | 2015-06-10 | 丸善石油化学株式会社 | ビニルエーテル系星型ポリマーの製造方法 |
-
2016
- 2016-04-15 WO PCT/JP2016/062058 patent/WO2016208257A1/ja not_active Ceased
- 2016-04-15 JP JP2017524695A patent/JP6772132B2/ja active Active
- 2016-04-15 US US15/735,748 patent/US10766973B2/en active Active
- 2016-04-15 CN CN201680036639.2A patent/CN107849167B/zh active Active
- 2016-04-15 KR KR1020177035781A patent/KR102366708B1/ko active Active
- 2016-05-24 TW TW105116125A patent/TWI712625B/zh active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06289612A (ja) * | 1993-03-31 | 1994-10-18 | Nippon Zeon Co Ltd | 感光性組成物 |
| US5679766A (en) * | 1993-12-07 | 1997-10-21 | Shipley Company, L.L.C. | Purification process of novolar resins using acid treated chelating cation exchange resin |
| JP2000281739A (ja) * | 1999-03-30 | 2000-10-10 | Jsr Corp | ノボラック系重合体中の金属除去方法 |
| JP2007009083A (ja) * | 2005-06-30 | 2007-01-18 | Sanyo Chem Ind Ltd | ビニルフェノールの製造方法 |
| JP2009521539A (ja) * | 2005-12-22 | 2009-06-04 | デュポン・エレクトロニック・ポリマーズ・エル・ピー | 安定なフォトレジスト組成物の製造法 |
| WO2009011186A1 (ja) * | 2007-07-13 | 2009-01-22 | Maruzen Petrochemical Co., Ltd. | Aba型トリブロック共重合体及びその製造方法 |
| JP2010235653A (ja) * | 2009-03-30 | 2010-10-21 | Nippon Soda Co Ltd | 重合体の製造方法 |
| JP2015512980A (ja) * | 2012-03-09 | 2015-04-30 | アーゼッド・エレクトロニック・マテリアルズ(ルクセンブルグ)ソシエテ・ア・レスポンサビリテ・リミテ | ブロックコポリマーの金属除去のための方法および材料 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107849167A (zh) | 2018-03-27 |
| KR20180020148A (ko) | 2018-02-27 |
| TW201714897A (zh) | 2017-05-01 |
| KR102366708B1 (ko) | 2022-02-22 |
| US10766973B2 (en) | 2020-09-08 |
| CN107849167B (zh) | 2021-02-23 |
| JP6772132B2 (ja) | 2020-10-21 |
| US20180134819A1 (en) | 2018-05-17 |
| TWI712625B (zh) | 2020-12-11 |
| JPWO2016208257A1 (ja) | 2018-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102471387B (zh) | 聚合物的制造方法、光刻用聚合物、抗蚀剂组合物以及基板的制造方法 | |
| US8067516B2 (en) | Copolymer for positive type lithography, polymerization initiator used in production of said copolymer, and composition for semiconductor lithography | |
| TWI432893B (zh) | Semiconductor micrographic copolymer and method for producing the same | |
| WO2008056437A1 (ja) | 液浸リソグラフィー用共重合体及び組成物 | |
| CN106019831B (zh) | 抗蚀剂组合物及抗蚀图案的制造方法 | |
| CN111788181B (zh) | 锍盐、光酸产生剂、固化性组合物和抗蚀剂组合物 | |
| JP5905207B2 (ja) | 金属不純物量の少ない半導体リソグラフィー用共重合体の製造方法及び該共重合体を製造するための重合開始剤の精製方法 | |
| TW201827418A (zh) | 化合物、樹脂、組成物、抗蝕圖型形成方法及電路圖型形成方法 | |
| KR20210110289A (ko) | 화합물, 수지, 조성물, 레지스트 패턴의 형성방법, 회로패턴 형성방법, 및 정제방법 | |
| JP7205715B2 (ja) | 化合物、樹脂、組成物並びにレジストパターン形成方法及び回路パターン形成方法 | |
| JP7205716B2 (ja) | 化合物、樹脂、組成物並びにレジストパターン形成方法及び回路パターン形成方法 | |
| TW201940967A (zh) | 組成物,以及阻劑圖型之形成方法及絕緣膜之形成方法 | |
| KR102366708B1 (ko) | 전자 재료용 중합체의 제조 방법 및 그 제조 방법에 의해 얻어진 전자 재료용 중합체 | |
| KR102799530B1 (ko) | 산분해성 수지의 제조 방법 | |
| EP3517522A1 (en) | Compound, resin, composition, resist pattern forming method and circuit pattern forming method | |
| WO2017115622A1 (ja) | レジストパターン形成方法および現像条件の決定方法 | |
| CN110856451A (zh) | 膜形成材料、光刻用膜形成用组合物、光学部件形成用材料、抗蚀剂组合物、抗蚀图案形成方法、抗蚀剂用永久膜、辐射敏感组合物、非晶膜的制造方法、光刻用下层膜形成材料、光刻用下层膜形成用组合物、光刻用下层膜的制造方法及电路图案形成方法 | |
| TWI453536B (zh) | Production method of copolymer for semiconductor micrographic grafting | |
| KR20230029619A (ko) | 공중합체, 포지티브형 레지스트 조성물, 및 레지스트 패턴 형성 방법 | |
| JP5743858B2 (ja) | 低分子量レジスト用共重合体の製造方法 | |
| WO2016132728A1 (ja) | 重合体およびポジ型レジスト組成物、並びに、レジストパターン形成方法 | |
| JP7139622B2 (ja) | 化合物、樹脂、組成物及びパターン形成方法 | |
| KR20250166894A (ko) | 공중합체, 포지티브형 레지스트 조성물, 및 레지스트 패턴 형성 방법 | |
| WO2023204165A1 (ja) | ポリマー溶液の製造方法 | |
| TW202108643A (zh) | 光阻用樹脂、光阻用樹脂的製造方法、光阻用樹脂組成物及圖案形成方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16814028 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 20177035781 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 15735748 Country of ref document: US |
|
| ENP | Entry into the national phase |
Ref document number: 2017524695 Country of ref document: JP Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 16814028 Country of ref document: EP Kind code of ref document: A1 |