WO2014002810A1 - 高分子化合物、フォトレジスト用樹脂組成物、及び半導体の製造方法 - Google Patents
高分子化合物、フォトレジスト用樹脂組成物、及び半導体の製造方法 Download PDFInfo
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- WO2014002810A1 WO2014002810A1 PCT/JP2013/066577 JP2013066577W WO2014002810A1 WO 2014002810 A1 WO2014002810 A1 WO 2014002810A1 JP 2013066577 W JP2013066577 W JP 2013066577W WO 2014002810 A1 WO2014002810 A1 WO 2014002810A1
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- 0 C1C2C1CC*2 Chemical compound C1C2C1CC*2 0.000 description 9
- RGFSMTYBPGYQMD-UHFFFAOYSA-N CC(C)CC(C)(C)C(OC(C1CC2C3C1)C3OC2O)=O Chemical compound CC(C)CC(C)(C)C(OC(C1CC2C3C1)C3OC2O)=O RGFSMTYBPGYQMD-UHFFFAOYSA-N 0.000 description 1
- GGKJOAGWVZPARZ-UHFFFAOYSA-N CCC(C)(C)C(OC(C1CC2C3C1)C3OS2(=O)=O)=O Chemical compound CCC(C)(C)C(OC(C1CC2C3C1)C3OS2(=O)=O)=O GGKJOAGWVZPARZ-UHFFFAOYSA-N 0.000 description 1
- AFYUJBIUJMRYLC-UHFFFAOYSA-N CCC(C)(C)C(OC(CC(C1)C2)(CC1C1)CC21O)=O Chemical compound CCC(C)(C)C(OC(CC(C1)C2)(CC1C1)CC21O)=O AFYUJBIUJMRYLC-UHFFFAOYSA-N 0.000 description 1
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- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
- C08F220/283—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing one or more carboxylic moiety in the chain, e.g. acetoacetoxyethyl(meth)acrylate
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- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1806—C6-(meth)acrylate, e.g. (cyclo)hexyl (meth)acrylate or phenyl (meth)acrylate
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- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1818—C13or longer chain (meth)acrylate, e.g. stearyl (meth)acrylate
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- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
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- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/38—Esters containing sulfur
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- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/38—Esters containing sulfur
- C08F220/382—Esters containing sulfur and containing oxygen, e.g. 2-sulfoethyl (meth)acrylate
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- 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
- C08F222/00—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 a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/12—Esters of phenols or saturated alcohols
- C08F222/14—Esters having no free carboxylic acid groups, e.g. dialkyl maleates or fumarates
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- 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
- C08F222/00—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 a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/12—Esters of phenols or saturated alcohols
- C08F222/22—Esters containing nitrogen
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
- G03F7/0397—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition the macromolecular compound having an alicyclic moiety in a side chain
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02118—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer carbon based polymeric organic or inorganic material, e.g. polyimides, poly cyclobutene or PVC
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
Definitions
- the present invention relates to a polymer compound, a resin composition for photoresist, and a method for producing a semiconductor, which are used when fine processing of a semiconductor is performed.
- a positive photoresist used in a semiconductor manufacturing process needs to have properties such as a property that an irradiated portion changes to alkali-soluble by light irradiation, adhesion to a silicon wafer, plasma etching resistance, and the like.
- a positive photoresist generally includes a polymer as a main component, a photoacid generator, and several additives for adjusting the above characteristics.
- lithography exposure light sources used for semiconductor production have become shorter in wavelength year by year, and are moving from KrF excimer lasers having a wavelength of 248 nm to ArF excimer lasers having a wavelength of 193 nm.
- examples of monomer units that are dissolved by an acid generated from a photoacid generator and exhibit alkali developer solubility include monomers derived from 2-methyl-2-methacryloyloxyadamantane.
- Patent Documents 1 to 3 Those having an acid leaving group containing a large alicyclic structure such as a unit or a monomer unit derived from 1- (1-methacryloyloxy-1-methylethyl) adamantane are known (Patent Documents 1 to 3). However, the photoresist resin having these monomer units has not been sufficiently satisfactory in terms of resolution, pattern shape and developability.
- a monomer unit derived from 1- (1-methacryloyloxyethyl) cyclopropane is known as a monomer unit having an acid leaving group containing a small alicyclic structure (Patent Document 4).
- the photoresist resin having the monomer unit is not sufficiently satisfactory in terms of sensitivity.
- an object of the present invention is to provide a polymer compound and a photoresist that are excellent in sensitivity and resolution, have small line edge roughness (LER), can form fine patterns with high accuracy, and can reduce development defects.
- Another object is to provide a resin composition.
- Another object of the present invention is a polymer compound that is excellent in sensitivity, resolution and etching resistance, has small line edge roughness (LER), can form fine patterns with high accuracy, and can reduce development defects. It is in providing the resin composition for photoresists.
- Still another object of the present invention is to provide a semiconductor manufacturing method using the polymer compound and the photoresist resin composition.
- a monomer unit having an acid-eliminable group having a large alicyclic structure as a monomer unit that is partly eliminated by acid and exhibits alkali solubility.
- a molecular compound is used as a photoresist resin composition, a compound containing a large alicyclic structure that has been eliminated by an acid is difficult to dissolve in an alkaline developer, and therefore remains as a scum on the substrate surface after development, thereby reducing the line edge roughness. It was found that (LER) deteriorated and development defects occurred.
- a polymer compound containing a specific monomer unit having an acid-eliminable group containing a small alicyclic structure having 3 or 4 carbon atoms and a monomer unit containing an alicyclic skeleton having a polar group is used as a resin composition for photoresist.
- the monomer unit having an acid-eliminable group containing a small alicyclic structure is sensitive to light irradiation (that is, highly reactive to acids) and is alkali-soluble by eliminating the acid-eliminable group.
- the monomer unit includes a specific monomer unit having an acid-eliminable group having a small alicyclic structure and a large alicyclic structure having 5 to 20 carbon atoms.
- the present invention provides a polymer compound including at least a monomer unit a represented by the following formula (a) and a monomer unit b including an alicyclic skeleton having a polar group.
- R represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom.
- R 1 and R 2 are the same or different and have a substituent.
- R 3 is a substituent bonded to ring Z 1 , an oxo group, an alkyl group, a hydroxyl group which may be protected with a protecting group, or a protecting group; Represents a hydroxyalkyl group which may be protected with, a carboxyl group which may be protected with a protecting group, or a cyano group, n represents an integer of 0 to 3. When n is 2 or more, 2 or more R 3 may be the same or different, and ring Z 1 represents an alicyclic hydrocarbon ring having 3 or 4 carbon atoms.
- the polar group of the monomer unit b includes —O—, —C ( ⁇ O) —, —C ( ⁇ O) —O—, —O—C ( ⁇ O) —O—, —C ( ⁇ O).
- the monomer unit b is preferably at least one selected from the following formulas (b1) to (b6).
- R represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom
- A represents a single bond or a linking group
- X represents a non-bonded, methylene group.
- Y represents a methylene group or a carbonyl group
- R 4 to R 8 may be the same or different and may be protected by a hydrogen atom, an alkyl group or a protecting group.
- R 9 is a hydroxyl group that may be protected with a protective group
- ring Z 2 represents an alicyclic hydrocarbon ring having 6 to 20 carbon atoms.
- m is 1 ⁇ Represents an integer of)
- the polymer compound of the present invention preferably further contains at least one monomer unit c selected from the following formulas (c1) to (c4).
- R represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom.
- R 10 to R 12 may be the same or different and have a substituent.
- R 13 represents an alkyl group of 1 to 6 also carbon atoms and .R 13, R 14 are the same or different, .R 15 represents a hydrogen atom or an optionally substituted alkyl group having 1 to 6 carbon atoms Represents a —COOR d group, wherein R d represents an optionally substituted tertiary hydrocarbon group, tetrahydrofuranyl group, tetrahydropyranyl group, or oxepanyl group, p is an integer of 1 to 3
- R c is a substituent bonded to ring Z 3 and is the same or different and is protected by an oxo group, an alkyl group, a hydroxyl group which may be protected by a protecting group, or a protecting group. May be protected with a hydroxyalkyl group or a protecting group Represents a good carboxyl group, q represents an integer of 0 to 3.
- Ring Z 3 represents an alicyclic hydrocarbon ring having 5 to 20 carbon atom
- the weight average molecular weight of the polymer compound is preferably 1,000 to 50,000, and the molecular weight distribution (ratio of weight average molecular weight to number average molecular weight: Mw / Mn) is preferably 1.0 to 3.0.
- the present invention also provides a photoresist resin composition comprising at least the polymer compound, a photoacid generator, and an organic solvent.
- the present invention further provides a method for producing a semiconductor, wherein a pattern is formed using the resin composition for photoresist.
- the polymer compound of the present invention is a monomer unit derived from a specific unsaturated carboxylic acid ester having an alicyclic hydrocarbon group having 3 or 4 carbon atoms as a monomer unit that is partially eliminated by an acid and exhibits alkali solubility. Therefore, the compound that has been removed by the acid can be easily removed and the occurrence of scum can be prevented. Furthermore, since it also has a monomer unit containing an alicyclic skeleton having a polar group, it is excellent in substrate adhesion and etching resistance.
- a monomer unit derived from a specific unsaturated carboxylic acid ester having a small alicyclic structure having 3 or 4 carbon atoms as a monomer unit partially desorbed by an acid and exhibiting alkali solubility has a large carbon number of 5 to 20
- Polymer compounds with monomer units derived from unsaturated carboxylic acid esters with acid-eliminating groups containing alicyclic structures are very reactive with acids, and compounds eliminated by acids can be easily removed from the substrate surface. In addition to preventing scum from being generated and reducing line edge roughness (LER), it is possible to exhibit even more excellent etching resistance.
- LER line edge roughness
- the polymer compound of the present invention includes at least a monomer unit a represented by the formula (a) and a monomer unit b including an alicyclic skeleton having a polar group.
- the polymer compound of the present invention may further contain a monomer unit c in addition to the monomer unit a and the monomer unit b.
- the monomer unit a of the present invention is represented by the above formula (a), and an acid-eliminable group (a protective group for a carboxyl group) is rapidly eliminated by an acid to generate a carboxyl group that contributes to alkali solubilization.
- the monomer unit a of the present invention gives the polymer compound the property of being changed to alkali solubility by an acid.
- the monomer unit a of the present invention can be introduced into a polymer compound by subjecting an unsaturated carboxylic acid ester represented by the following formula (a-1) to polymerization.
- R, R 1, R 2, R 3, n, ring Z 1 is in the formula (a) R, R 1, R 2, R 3, n, corresponding to the ring Z 1 R represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom.
- R 1 and R 2 are the same or different and each represents an optionally substituted alkyl group having 1 to 6 carbon atoms.
- R 3 is a substituent bonded to ring Z 1 , an oxo group, an alkyl group, a hydroxyl group which may be protected with a protecting group, a hydroxyalkyl group which may be protected with a protecting group, or a protecting group.
- n represents an integer of 0 to 3. When n is 2 or more, two or more R 3 s may be the same or different.
- Ring Z 1 represents an alicyclic hydrocarbon ring having 3 or 4 carbon atoms.
- the unsaturated carboxylic acid ester represented by the formula (a-1) is, for example, the following formula (1) or (2) R 1 MgX 1 (1)
- R 1 Li (2) (Wherein R 1 represents an optionally substituted alkyl group having 1 to 6 carbon atoms, and X 1 represents a halogen atom)
- an organic metal compound represented by the following formula (3) (Wherein R 2 represents an optionally substituted alkyl group having 1 to 6 carbon atoms, ring Z 1 represents an alicyclic hydrocarbon ring having 3 or 4 carbon atoms, and R 3 represents a ring Z 1 is a substituent bonded to Z 1 , an oxo group, an alkyl group, a hydroxyl group which may be protected with a protecting group, a hydroxyalkyl group which may be protected with a protecting group, and a protecting group And n represents an integer of 0 to 3.
- R 3 s When n is 2 or more, two or more R 3 s may be the same or different.
- the addition reaction product with a ketone represented by the following formula (4) (Wherein R represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom, and X 2 represents a halogen atom) It can manufacture by making the unsaturated carboxylic acid halide represented by these react.
- the addition reaction product of the organometallic compound represented by the formula (1) or (2) and the ketone represented by the formula (3) is an organometallic represented by the formula (1).
- the unsaturated carboxylic acid ester represented by the above formula (a-1) can be produced through the following steps. 1st process: The organometallic compound represented by the said Formula (1) or (2) and the ketone represented by the said Formula (3) are made to react, and the organometallic compound represented by the said Formula (1) is made. When used, the organometallic compound adduct of the tertiary alcohol represented by the formula (5-2) when the organometallic compound represented by the formula (5-1) or the formula (2) is used.
- Step 2 In the presence of a tertiary amine in the organometallic compound adduct of the tertiary alcohol represented by the formula (5-1) or the formula (5-2), the formula (4) A step of reacting an unsaturated carboxylic acid halide represented by formula (a-1) to form an unsaturated carboxylic acid ester represented by the formula (a-1).
- R 1 represents an optionally substituted alkyl group having 1 to 6 carbon atoms, and corresponds to R 1 in the above formula (a-1).
- alkyl group having 1 to 6 carbon atoms include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, s-butyl, t-butyl, pentyl, isoamyl, s-amyl, t-amyl, hexyl group and the like. be able to.
- a C 1-4 alkyl group is preferable.
- Examples of the substituent that the alkyl group having 1 to 6 carbon atoms in R 1 may have include, for example, a halogen atom, a hydroxy group, a substituted hydroxy group (for example, methoxy, ethoxy, propoxy group, etc., 1 to 4 carbon atoms). And an cyano group.
- Examples of the substituted alkyl group having 1 to 6 carbon atoms include one or two or more hydrogen atoms constituting the alkyl group such as trifluoromethyl, 2,2,2-trifluoroethyl group, etc.
- Examples of the halogen atom for X 1 include a chlorine atom, a bromine atom, and an iodine atom.
- organometallic compound represented by the formula (1) include organomagnesium compounds such as methylmagnesium bromide, ethylmagnesium bromide, butylmagnesium bromide, methylmagnesium chloride, ethylmagnesium chloride, and butylmagnesium chloride (Grineer reagent ).
- organolithium compounds such as methyllithium, ethyllithium, n-butyllithium, and t-butyllithium.
- organometallic compound As the organometallic compound, it is preferable to use the organometallic compound represented by the formula (1) because it is easy to handle, can be safely scaled up, and is suitable for industrialization. .
- R 2 represents an optionally substituted alkyl group having 1 to 6 carbon atoms
- the ring Z 1 represents an alicyclic hydrocarbon ring having 3 or 4 carbon atoms
- R 3 is a substituent bonded to ring Z 1 , an oxo group, an alkyl group, a hydroxyl group which may be protected with a protecting group, a hydroxyalkyl group which may be protected with a protecting group, or a protecting group.
- n represents an integer of 0 to 3.
- two or more R 3 s may be the same or different.
- R 2, R 3, ring Z 1, n, the above formula (a-1) in R 2, R 3, corresponds to the ring Z 1, n.
- Examples of the alkyl group having 1 to 6 carbon atoms in R 2 include the same examples as in the above R 1 . Among these, a C 1-4 alkyl group is preferable, a C 1-3 alkyl group is particularly preferable, and a C 1-2 alkyl group is most preferable.
- Examples of the substituent that the alkyl group having 1 to 6 carbon atoms may have in R 2 include the same examples as in the above R 1 .
- Examples of the alicyclic hydrocarbon ring having 3 or 4 carbon atoms in the ring Z 1 include cycloalkane rings such as cyclopropyl and cyclobutyl; cycloalkene rings such as cyclopropene and cyclobutene.
- R 3 is a substituent bonded to ring Z 1 , an oxo group, an alkyl group, a hydroxyl group which may be protected with a protecting group, a hydroxyalkyl group which may be protected with a protecting group, or a protecting group.
- An optionally protected carboxyl group or cyano group is shown.
- alkyl group examples include alkyl groups having 1 to 6 carbon atoms such as methyl, ethyl, propyl, isopropyl, butyl, s-butyl, t-butyl, pentyl, isoamyl, s-amyl, t-amyl, and hexyl groups. Etc.
- Examples of the protective group that the hydroxyl group may have include, for example, a C 1-4 alkyl group such as methyl, ethyl, and t-butyl group; an acetal bond together with an oxygen atom that constitutes a hydroxyl group such as methoxymethyl group.
- a group that forms an ester bond with an oxygen atom constituting a hydroxyl group such as an acetyl group or a benzoyl group;
- hydroxyalkyl group examples include hydroxy C 1-6 alkyl such as hydroxymethyl, 2-hydroxyethyl, 1-hydroxyethyl, 3-hydroxypropyl, 2-hydroxypropyl, 4-hydroxybutyl, and 6-hydroxyhexyl groups. Groups and the like.
- Examples of the protective group that the hydroxyalkyl group may have include, for example, a C 1-4 alkyl group such as methyl, ethyl, and t-butyl group; an acetal bond together with an oxygen atom that constitutes a hydroxyl group such as methoxymethyl group A group that forms an ester bond with an oxygen atom that constitutes a hydroxyl group such as an acetyl group or a benzoyl group.
- Examples of the protective group for the carboxyl group include 1 to 6 carbon atoms such as methyl, ethyl, propyl, isopropyl, butyl, s-butyl, t-butyl, pentyl, isoamyl, s-amyl, t-amyl, and hexyl groups.
- Typical examples of the ketone represented by the formula (3) include cyclopropyl methyl ketone, cyclopropyl ethyl ketone, cyclobutyl methyl ketone, cyclobutyl ethyl ketone and the like.
- tertiary amine examples include aliphatic amines, aromatic amines, alicyclic amines, and heterocyclic amines. Moreover, a hydroxyl group, a nitro group, etc. may be contained. Furthermore, in addition to monoamines, polyamines such as diamines may be used.
- tertiary amine examples include trimethylamine, triethylamine, diisopropylethylamine, tri-n-propylamine, triisopropylamine, tributylamine, N-methyl-diethylamine, N-ethyl-dimethylamine, N-ethyl-diamilamine.
- Aliphatic amines such as N, N-dimethylaniline and N, N-diethylaniline; cycloaliphatic amines such as N, N-dimethylcyclohexylamine and N, N-diethylcyclohexylamine; N , N-dimethylaminopyridine, N-methylmorpholine, diazabicycloundecene (DBU), diazabicyclononene (DBN), heterocyclic amines such as N-methylpyridine, N-methylpyrrolidine; tetramethylethylenediamine, triethylenediamine Etc. Amine and the like can be mentioned.
- aliphatic amines such as trimethylamine and triethylamine
- heterocyclic amines such as N-methylmorpholine
- aliphatic amines such as trimethylamine and triethylamine are particularly preferred for the unsaturated carboxylic acid ester. This is preferable in that the rate can be further improved.
- R represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom
- X 2 represents a halogen atom
- halogen atom in R and X 2 examples include a chlorine atom, a bromine atom, and an iodine atom.
- alkyl group having 1 to 6 carbon atoms in R examples include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, s-butyl, t-butyl, pentyl, isoamyl, s-amyl, t-amyl, and hexyl groups.
- alkyl group having 1 to 6 carbon atoms (haloalkyl group) having a halogen atom include one or more hydrogen atoms constituting the alkyl group such as trifluoromethyl, 2,2,2-trifluoroethyl group, etc. And a group in which is replaced by a halogen atom such as a fluorine atom or a chlorine atom.
- (meth) acrylic acid chloride As the unsaturated carboxylic acid halide represented by the formula (4), (meth) acrylic acid chloride, (meth) acrylic acid bromide, (meth) acrylic acid iodide and the like are preferable, Methacrylic acid chloride is preferred.
- (meth) acrylic acid means “acrylic acid” and / or “methacrylic acid”.
- a ketone having excellent reactivity with the organometallic compound is used as a starting material, even if it has a group having a large steric hindrance, it can be reacted rapidly.
- An organometallic compound adduct of a tertiary alcohol can be formed. And since it transfers to a 2nd process, without quenching after completion
- the organometallic compound adduct of the tertiary alcohol obtained in the first step is reacted with an unsaturated carboxylic acid halide represented by the formula (4) in the presence of a tertiary amine. Therefore, even if the unsaturated carboxylic acid halide is activated by a tertiary amine and is a methacrylic acid halide having a large steric hindrance, it can be rapidly reacted with an organometallic compound adduct of a tertiary alcohol.
- the unsaturated carboxylic acid ester represented by the formula (a-1) is obtained in a high yield.
- the amount of the organometallic compound represented by the formula (1) or (2) is, for example, 0.5 to 2.0 mol with respect to 1 mol of the ketone represented by the formula (3) as a starting material. , Preferably 0.8 to 1.8 mol, particularly preferably 1.1 to 1.4 mol.
- the usage-amount of the organometallic compound represented by Formula (1) or (2) is less than the said range, there exists a tendency for a yield to fall.
- the usage-amount of the organometallic compound represented by Formula (1) or (2) exceeds the said range, there exists a tendency for economical efficiency to deteriorate.
- the reaction can be performed in the presence or absence of a solvent.
- a solvent for example, saturated or unsaturated hydrocarbon solvents such as pentane, hexane, heptane, octane, petroleum ether; aromatic hydrocarbon solvents such as benzene, toluene, xylene; methylene chloride, chloroform, 1 Halogenated hydrocarbon solvents such as 1,2-dichloroethane, chlorobenzene, bromobenzene; ethers such as diethyl ether, diisopropyl ether, dibutyl ether, tetrahydrofuran (THF), dioxane, 1,2-dimethoxyethane, cyclopentyl methyl ether (CPME) System solvents; sulfolanes such as sulfolane; high-boiling solvents such as silicone oil can be used.
- saturated or unsaturated hydrocarbon solvents such as pentane, he
- ether solvents such as diethyl ether, diisopropyl ether, dibutyl ether, tetrahydrofuran (THF), cyclopentyl methyl ether (CPME), methylene chloride, chloroform, 1,2-dichloroethane, chlorobenzene, bromobenzene It is preferable to use halogenated hydrocarbon solvents such as
- the amount of the solvent used is not particularly limited as long as it can dissolve or disperse the reaction components and does not impair the economy.
- the amount is, for example, about 0.1 to 100 parts by weight, preferably 1 to 20 parts by weight with respect to 1 part by weight of the ketone represented by the formula (3) as a starting material.
- the reaction may be performed by dropping the ketone represented by the formula (3) into the organometallic compound represented by the formula (1) or (2), and the ketone represented by the formula (3) is represented by the formula (1).
- Or (2) may be added dropwise.
- the temperature at the time of dropwise addition and reaction ripening is, for example, ⁇ 80 ° C. or higher, the boiling point of the reaction system or lower, preferably ⁇ 20 to 80 ° C., particularly preferably ⁇ 5 to 50 ° C.
- the temperature at the time of dripping and reaction ripening may be the same or different.
- the reaction atmosphere can be appropriately selected within a range that does not inhibit the reaction, and may be any of an air atmosphere, an oxygen atmosphere, a nitrogen atmosphere, an argon atmosphere, and the like.
- the reaction can be performed under normal pressure or reduced pressure (eg, about 0.0001 to 0.1 MPa, preferably about 0.001 to 0.1 MPa), and may be performed under pressure for operational reasons. .
- the amount of the unsaturated carboxylic acid halide represented by the formula (4) is, for example, about 0.5 to 20 moles, preferably 0 with respect to 1 mole of the ketone represented by the formula (3) as a starting material. .8 to 8 mol, particularly preferably 1 to 3 mol.
- the usage-amount of the unsaturated carboxylic acid halide represented by Formula (4) is less than the said range, there exists a tendency for reaction rate to fall.
- the amount of the unsaturated carboxylic acid halide represented by the formula (4) exceeds the above range, no improvement in the reaction results is observed, and the economy tends to deteriorate.
- the amount of the tertiary amine to be used is, for example, about 0.5 to 20 mol, preferably 0.8 to 8 mol, particularly preferably relative to 1 mol of the ketone represented by the formula (3) as the starting material. 1 to 3 moles.
- the amount of the tertiary amine used with respect to the unsaturated carboxylic acid halide is, for example, about 0.5 to 10 mol, preferably 0.8 to 5 mol, particularly preferably 1 with respect to 1 mol of the unsaturated carboxylic acid halide. ⁇ 3 moles.
- a polymerization inhibitor is preferably added to the system.
- the unsaturated carboxylic acid halide represented by the formula (4) as a raw material and the unsaturated carboxylic acid ester represented by the formula (a-1) as a target product are polymerized.
- copolymerization it is possible to prevent by-production of oligomers, and an unsaturated carboxylic acid ester having an extremely low oligomer content as an impurity can be obtained.
- polymerization inhibitor examples include 4,4′-thiobis (6-t-butyl-m-cresol), 4,4′-butylidenebis (6-t-butyl-m-cresol), 1,1,3 -Tris (5-t-butyl-4-hydroxy-2-methylphenyl) butane, p-methoxyphenol, phenothiazine and the like.
- the polymerization reaction can also be suppressed by allowing a component containing molecular oxygen (for example, air diluted with air, nitrogen, etc.) to coexist in the reaction system. These can be used alone or in combination of two or more.
- the amount of the polymerization inhibitor used is, for example, about 0.0001 to 5 parts by weight, preferably 0.005 to 0.3 parts by weight with respect to 100 parts by weight of the ketone represented by the formula (3).
- the reaction can be performed in the presence or absence of a solvent.
- a solvent for example, ester solvents such as ethyl acetate and butyl acetate; saturated or unsaturated hydrocarbon solvents such as pentane, hexane, heptane, octane and petroleum ether; aromatics such as benzene, toluene and xylene Hydrocarbon solvents: halogenated hydrocarbon solvents such as methylene chloride, chloroform, 1,2-dichloroethane, chlorobenzene, bromobenzene; diethyl ether, diisopropyl ether, dibutyl ether, tetrahydrofuran (THF), dioxane, 1,2-dimethoxy Ether solvents such as ethane and cyclopentyl methyl ether (CPME); nitriles such as acetonitrile and benzonitrile; sulfoxide solvents such as dimethyl
- a tertiary amine may also serve as a solvent.
- ester solvents such as ethyl acetate and butyl acetate, diethyl ether, diisopropyl ether, dibutyl ether, tetrahydrofuran (THF), dioxane, 1,2-dimethoxyethane, cyclopentyl methyl ether (CPME), etc.
- Ether solvents such as acetonitrile and benzonitrile, and halogenated hydrocarbon solvents such as methylene chloride, chloroform, 1,2-dichloroethane, chlorobenzene, and bromobenzene are preferably used.
- the amount of the solvent used is not particularly limited as long as it can dissolve or disperse the reaction components and does not impair the economy.
- the amount is, for example, about 0.5 to 100 parts by weight, preferably 1 to 20 parts by weight with respect to 1 part by weight of the unsaturated carboxylic acid halide represented by the formula (4).
- the solvent used in the second step may be the same as the solvent used in the first step, or a different solvent may be used.
- the solvent may be used as it is after the completion of the first step.
- the concentration of the solvent is adjusted by concentration and dilution before use. Also good.
- the reaction temperature is, for example, about ⁇ 50 to 150 ° C., and the lower limit thereof is preferably ⁇ 10 ° C., particularly preferably 0 ° C., and most preferably 10 ° C.
- the upper limit is preferably 80 ° C., more preferably 50 ° C., particularly preferably 45 ° C., most preferably 40 ° C., and further preferably less than 40 ° C.
- the reaction atmosphere can be appropriately selected within a range that does not inhibit the reaction, and may be any of an air atmosphere, a nitrogen atmosphere, an argon atmosphere, and the like.
- the reaction can be performed under normal pressure or reduced pressure (eg, about 0.0001 to 0.1 MPa, preferably about 0.001 to 0.1 MPa), and may be performed under pressure for operational reasons. .
- a tertiary amine is added to the addition reaction product obtained in the first step, and then an unsaturated carboxylic acid halide (or a solution containing the same) represented by the formula (4) is added to the reaction system. It can carry out by the method of adding sequentially in the inside.
- the polymerization inhibitor is added, it is preferably added to the reaction system at an appropriate time before adding the unsaturated carboxylic acid halide represented by the formula (4).
- the reaction can be carried out by a conventional method such as batch, semi-batch or continuous.
- the target unsaturated carboxylic acid ester represented by the formula (a-1) can be used as it is after the reaction or after separation and purification.
- Separation / purification can be performed by a conventional separation / purification method, for example, extraction, washing (for example, washing with acid, alkali or water), distillation, rectification, molecular distillation, adsorption and the like. Separation and purification may be performed continuously or discontinuously (batch mode). The pressure during the separation / purification operation may be reduced pressure or normal pressure.
- the organic solvent include aliphatic hydrocarbon solvents such as hexane and heptane; alicyclic hydrocarbon solvents such as cyclohexane, methylcyclohexane and cyclopentane; aromatic hydrocarbon solvents such as toluene and xylene; Examples thereof include ester solvents such as ethyl and butyl acetate; halogenated hydrocarbon solvents such as methylene chloride and chloroform.
- the organic solvent include aliphatic hydrocarbon solvents such as hexane and heptane; alicyclic hydrocarbon solvents such as cyclohexane, methylcyclohexane and cyclopentane; aromatic hydrocarbon solvents such as toluene and xylene; Examples thereof include ester solvents such as ethyl and butyl acetate; halogenated hydrocarbon solvents such as methylene chloride and chloroform.
- an alicyclic hydrocarbon solvent such as cyclohexane or methylcyclohexane
- an ester solvent such as ethyl acetate or butyl acetate
- Carboxylic acid esters are preferred because they can be obtained with an excellent recovery rate.
- the method for producing the unsaturated carboxylic acid ester it is excellent in yield (for example, 50% or more, preferably 60% or more) and high purity (for example, purity 75% or more, preferably purity 80% or more, particularly preferably). Can obtain an unsaturated carboxylic acid ester having a purity of 90% or more.
- unsaturated carboxylic acid ester represented by the formula (a-1) of the present invention compounds represented by the following formulas (a-1-1) to (a-1-6) are particularly preferable.
- the monomer unit b of the present invention is a monomer unit containing an alicyclic skeleton having a polar group, and has a function of imparting substrate adhesion and etching resistance to a polymer compound.
- Examples of the polar group include —O—, —C ( ⁇ O) —, —C ( ⁇ O) —O—, —O—C ( ⁇ O) —O—, —C ( ⁇ O) —O.
- R a represents an alkyl group which may have a substituent.
- the alkyl group include those having 1 to 6 carbon atoms such as methyl, ethyl, propyl, isopropyl, butyl, s-butyl, t-butyl, pentyl, isoamyl, s-amyl, t-amyl, and n-hexyl group.
- An alkyl group etc. can be mentioned.
- Examples of the substituent that the alkyl group may have in R a include, for example, a halogen atom such as a fluorine, chlorine and bromine atom, a C 1-5 haloalkyl group such as a trifluoromethyl group, a hydroxyl group, and a methoxy group.
- C 1-4 alkoxy group such as an amino group, di C 1-4 alkylamino group, a carboxyl group, C 1-4 alkoxycarbonyl group such as methoxycarbonyl group, a nitro group, a cyano group, such as acetyl group C 1- And 6 aliphatic acyl groups.
- the monomer unit b of the present invention preferably contains at least one selected from the following formulas (b1) to (b6).
- R represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom
- A represents a single bond or a linking group.
- X represents a non-bond, a methylene group, an ethylene group, an oxygen atom, or a sulfur atom.
- Y represents a methylene group or a carbonyl group.
- R 4 to R 8 are the same or different and are protected by a hydrogen atom, an alkyl group, a hydroxyl group that may be protected with a protecting group, a hydroxyalkyl group that may be protected with a protecting group, or a protecting group.
- R 9 represents a hydroxyl group that may be protected with a protecting group, a hydroxyalkyl group that may be protected with a protecting group, or a carboxyl group that may be protected with a protecting group Or a cyano group.
- Ring Z 2 represents an alicyclic hydrocarbon ring having 6 to 20 carbon atoms.
- m represents an integer of 1 to 5
- R represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom, and examples thereof are the same as R in the formula (4).
- Examples of the linking group in A include an alkylene group, a carbonyl group (—C ( ⁇ O) —), an ether bond (—O—), an ester bond (—C ( ⁇ O) —O—), an amide bond ( And —C ( ⁇ O) —NH—), carbonate bonds (—O—C ( ⁇ O) —O—), and groups in which a plurality of these are linked.
- Examples of the alkylene group include linear or branched alkylene groups such as methylene, methylmethylene, dimethylmethylene, ethylene, propylene, and trimethylene groups, 1,2-cyclopentylene, and 1,3-cyclopentylene.
- Divalent alicyclic hydrocarbon groups such as len, cyclopentylidene, 1,2-cyclohexylene, 1,3-cyclohexylene, 1,4-cyclohexylene, and cyclohexylidene groups (especially divalent hydrocarbon groups). Cycloalkylene group) and the like.
- Examples of the alkyl group in R 4 to R 8 include the same examples as in R 3 in the formula (3).
- Examples of the hydroxyl group that may be protected with a protecting group in R 4 to R 9, the hydroxyalkyl group that may be protected with a protecting group, and the carboxyl group that may be protected with a protecting group include those represented by the formula (3)
- the example similar to the example in R ⁇ 3 > in a) can be mentioned.
- the ring Z 2 represents an alicyclic hydrocarbon ring having 6 to 20 carbon atoms, such as 6 to 20 members (preferably 6 to 15 members, particularly preferably 6 to 12 members) such as cyclohexane ring and cyclooctane ring.
- a cycloalkane ring of about 6 to 20 members such as a cyclohexene ring; a monocyclic alicyclic carbocyclic ring such as a cycloalkene ring; an adamantane ring, norbornane Ring, norbornene ring, bornane ring, isobornane ring, tricyclo [5.2.1.0 2,6 ] decane ring, tetracyclo [4.4.0.1 2,5 .
- the monomer unit represented by the formula (b6) can impart high transparency and etching resistance to the polymer compound.
- the monomer unit a and the monomer unit b in particular, monomers represented by the formulas (b1), (b2), (b3), (b4), and (b5) It is preferable that at least one selected from the units and the monomer unit represented by the formula (b6) include substrate adhesion, etching resistance, and transparency.
- the content of monomer units selected from the monomer units represented by formulas (b1), (b2), (b3), (b4), and (b5) (when two or more types are included) Is the total amount) and the content ratio of the monomer unit represented by the formula (b6) (the former / the latter (molar ratio)) is, for example, 1 or more, preferably 2 or more, particularly preferably 3 or more.
- Examples of the monomer unit b of the present invention include monomer units represented by the following formula.
- the monomer unit b can be introduced into the polymer compound by subjecting the corresponding polymerizable monomer to polymerization.
- the monomer unit c of the present invention is at least one monomer unit selected from the following formulas (c1) to (c4) (excluding those contained in the monomer unit b), and an acid-eliminable group (carboxyl) by an acid.
- a protecting group such as a group is rapidly eliminated to form a carboxyl group that contributes to alkali solubilization.
- the monomer unit c of the present invention gives the polymer compound the property of changing to alkali solubility with an acid and the etching resistance.
- R represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom.
- R 10 to R 12 are the same or different and each represents an optionally substituted alkyl group having 1 to 6 carbon atoms.
- R 13 and R 14 are the same or different and each represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms which may have a substituent.
- R 15 represents a —COOR d group, and R d represents an optionally substituted tertiary hydrocarbon group, tetrahydrofuranyl group, tetrahydropyranyl group, or oxepanyl group.
- R c is a substituent bonded to ring Z 3 and is the same or different and is an oxo group, an alkyl group, a hydroxyl group which may be protected with a protecting group, or a hydroxy group which is protected with a protecting group An alkyl group or a carboxyl group which may be protected with a protecting group is shown.
- q represents an integer of 0 to 3.
- Ring Z 3 represents an alicyclic hydrocarbon ring having 5 to 20 carbon atoms.
- R represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms which may have a halogen atom, and examples thereof are the same as R in the formula (4).
- Examples of the alkyl group having 1 to 6 carbon atoms in R 10 to R 14 include the same examples as in the above R 1 . Among these, a C 1-4 alkyl group is preferable, a C 1-3 alkyl group is particularly preferable, and a C 1-2 alkyl group is most preferable.
- Examples of the substituent that the alkyl group having 1 to 6 carbon atoms in R 10 to R 14 may have include the same examples as in the above R 1 .
- Examples of the tertiary hydrocarbon group for R d include a t-butyl group and a t-pentyl group.
- Examples of the substituent that the tertiary hydrocarbon group in R d may have include, for example, a halogen atom, a hydroxy group, a substituted hydroxy group (eg, methoxy, ethoxy, propoxy group, etc. having 1 to 4 carbon atoms).
- An alkoxy group) and a cyano group examples of the substituent that the tertiary hydrocarbon group in R d may have include, for example, a halogen atom, a hydroxy group, a substituted hydroxy group (eg, methoxy, ethoxy, propoxy group, etc. having 1 to 4 carbon atoms).
- An alkoxy group and a cyano group.
- R c the alkyl group, the hydroxyl group that may be protected with a protecting group, the hydroxyalkyl group that may be protected with a protecting group, or the carboxyl group that may be protected with a protecting group may be represented by the above formula. Examples similar to those for R 3 in (3) can be given.
- Examples of the alicyclic hydrocarbon ring having 5 to 20 carbon atoms in the ring Z 3 include 5 to 20 members (preferably 5 to 15 members, particularly preferably 5 to 15 members) such as cyclopentane ring, cyclohexane ring and cyclooctane ring.
- Examples of the unsaturated carboxylic acid ester corresponding to the monomer unit c include compounds represented by the following formulae.
- the monomer unit c can be introduced into the polymer compound by subjecting the corresponding unsaturated carboxylic acid ester to polymerization.
- Polymerization of the monomer mixture containing the monomer can be performed by a conventional method used for producing an acrylic polymer, such as solution polymerization, bulk polymerization, suspension polymerization, bulk-suspension polymerization, emulsion polymerization, etc.
- Solution polymerization is preferred.
- drop polymerization is preferable among solution polymerization.
- a monomer solution obtained by dissolving a monomer in an organic solvent and a polymerization initiator solution obtained by dissolving a polymerization initiator in an organic solvent are prepared in advance.
- a method in which a monomer is dropped into an organic solvent maintained at a constant temperature, (iii) a monomer solution obtained by dissolving the monomer in the organic solvent, and a polymerization start obtained by dissolving the polymerization initiator in the organic solvent A method in which a polymerization initiator solution is dropped into the monomer solution prepared in advance and maintained at a constant temperature, and (iv) a monomer obtained by dissolving some monomers in an organic solvent A monomer solution 2 obtained by dissolving the solution 1 and the remaining monomer in an organic solvent, and a polymerization initiator dissolved in the organic solvent
- the polymerization initiator solution obtained in this manner is prepared in advance, and the monomer solution 2 and the polymerization initiator solution are dropped into the monomer solution 1 maintained at a constant temperature.
- a conventional solvent can be used as the polymerization solvent.
- ethers chain ethers including glycol ethers such as diethyl ether and propylene glycol monomethyl ether; cyclic ethers such as tetrahydrofuran and dioxane), esters (methyl acetate) Chain esters such as ethyl acetate, butyl acetate and ethyl lactate; glycol ether esters such as propylene glycol monomethyl ether acetate), ketones (acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, etc.), amides (N, N-dimethyl) Acetamide, N, N-dimethylformamide, etc.), sulfoxide (dimethylsulfoxide, etc.), alcohol (methanol, ethanol, propanol, etc.), hydrocarbon (benzene, toluene, xyle, etc.) Aliphatic
- the polymer compound obtained by polymerization can be purified by precipitation or reprecipitation.
- the precipitation or reprecipitation solvent may be an organic solvent and water, may be a mixed solvent of two or more organic solvents, or may be a mixed solvent of an organic solvent and water.
- the organic solvent used as the precipitation or reprecipitation solvent include hydrocarbons (aliphatic hydrocarbons such as pentane, hexane, heptane, and octane; alicyclic hydrocarbons such as cyclohexane and methylcyclohexane; benzene, toluene, xylene, and the like.
- Aromatic hydrocarbons halogenated hydrocarbons (halogenated aliphatic hydrocarbons such as methylene chloride, chloroform and carbon tetrachloride; halogenated aromatic hydrocarbons such as chlorobenzene and dichlorobenzene), nitro compounds (nitromethane, nitroethane, etc.) ), Nitrile (acetonitrile, benzonitrile, etc.), ether (chain ether such as diethyl ether, diisopropyl ether, dimethoxyethane; cyclic ether such as tetrahydrofuran, dioxane), ketone (acetone, methyl ethyl ketone, diisobutyl keto) Etc.), esters (ethyl acetate, butyl acetate, etc.), carbonates (dimethyl carbonate, diethyl carbonate, ethylene carbonate, propylene carbonate, etc.), alcohols (methanol, ethanol, propanol
- a solvent containing at least a hydrocarbon is preferable.
- a hydrocarbon for example, hexane or the like.
- the ratio of [aliphatic hydrocarbon) to other solvent [the former / the latter (weight ratio)] is, for example, about 10/90 to 99/1, preferably 30/70 to 98/2, particularly preferably 50/50 to 97/3.
- the content of the monomer unit a is, for example, about 5 to 99 mol%, preferably 10 to 90%, based on the entire monomer units constituting the polymer.
- the mol% particularly preferably 30 to 80 mol%.
- the content of the monomer unit b is, for example, about 1 to 95 mol%, preferably 10 to 90 mol%, particularly preferably 20 to 70 mol%, based on the entire monomer units constituting the polymer.
- the content of the monomer unit a is, for example, about 5 to 95 mol%, preferably 10 to 80 mol% with respect to the monomer unit constituting the polymer. Particularly preferred is 20 to 70 mol%, and most preferred is 20 to 50 mol%.
- the content of the monomer unit b is, for example, about 1 to 90 mol%, preferably 10 to 80 mol%, particularly preferably 20 to 70 mol%, most preferably 30 to 30 mol% with respect to the monomer unit constituting the polymer. 60 mol%.
- the content of the monomer unit c is, for example, about 5 to 90 mol%, preferably 5 to 70 mol%, particularly preferably 5 to 50 mol%, most preferably 5 to 5 mol% with respect to the monomer unit constituting the polymer. 40 mol%.
- the weight average molecular weight (Mw) of the polymer compound of the present invention is, for example, about 1000 to 50000, preferably 3000 to 20000, particularly preferably 4000 to 15000, and the molecular weight distribution (the weight average molecular weight and the number average molecular weight are The ratio (Mw / Mn) is, for example, about 1.0 to 3.0, preferably 1.0 to 2.5.
- said Mn shows a number average molecular weight
- both Mn and Mw are values of polystyrene conversion.
- the photoresist resin composition of the present invention contains at least the polymer compound, a photoacid generator, and an organic solvent.
- photoacid generator examples include conventional compounds that efficiently generate acid upon exposure, such as diazonium salts, iodonium salts (diphenyliodohexafluorophosphate, etc.), sulfonium salts (triphenylsulfonium hexafluoroantimonate, triphenylsulfonium).
- diazonium salts such as diazonium salts, iodonium salts (diphenyliodohexafluorophosphate, etc.), sulfonium salts (triphenylsulfonium hexafluoroantimonate, triphenylsulfonium).
- the content of the photoacid generator can be appropriately selected according to the strength of the acid generated by light irradiation, the ratio of each monomer unit (repeating unit) in the polymer compound, and the like, with respect to 100 parts by weight of the polymer compound. For example, about 0.1 to 30 parts by weight, preferably 1 to 25 parts by weight, particularly preferably 2 to 20 parts by weight.
- organic solvent examples include ethers (chain ethers including glycol ethers such as propylene glycol monomethyl ether, cyclic ethers such as dioxane), esters (chain esters such as methyl acetate, ethyl acetate, butyl acetate, and ethyl lactate; and cyclic esters such as ⁇ -butyrolactone; glycol ether esters such as propylene glycol monomethyl ether acetate) and ketones (methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, etc.). These can be used alone or in combination of two or more.
- ethers chain ethers including glycol ethers such as propylene glycol monomethyl ether, cyclic ethers such as dioxane
- esters chain esters such as methyl acetate, ethyl acetate, butyl acetate, and ethyl lactate
- the content of the organic solvent can be appropriately selected according to the thickness of the resist film to be formed, and the concentration of the polymer compound is, for example, about 1 to 20% by weight, preferably 2 to 15% by weight. The amount is preferably 3 to 10% by weight.
- the photoresist resin composition of the present invention improves, for example, stability over time at the time of leaving between the exposure process and the post-exposure heating process.
- Basic compounds triethylamine, 1,8-diazabicyclo [5.4.0] -7-undecene (DBU), 1,5-diazabicyclo [4.3.0] -5-nonene (DBN), etc.
- Additive resins for improving resist performance surfactants for improving coatability during film formation, dissolution inhibitors, stabilizers, plasticizers, photosensitizers for controlling solubility during development, It may contain a light absorber or the like.
- the method for producing a semiconductor of the present invention is characterized in that a pattern is formed using the photoresist resin composition, the photoresist resin composition is applied onto a substrate or a substrate, and dried. After forming a coating film (resist film), the coating film is exposed to light through a predetermined mask (or further subjected to post-exposure baking) to form a latent image pattern and then developed. be able to.
- Examples of the base material or the substrate include a silicon wafer, metal, plastic, glass, and ceramic.
- the application of the photoresist resin composition can be performed using a conventional application means such as a spin coater, a dip coater, or a roller coater.
- the thickness of the coating film is, for example, about 0.01 to 1 ⁇ m, preferably 0.03 to 0.5 ⁇ m.
- light beams of various wavelengths for example, ultraviolet rays, X-rays, etc.
- light beams of various wavelengths for example, ultraviolet rays, X-rays, etc.
- semiconductor resists usually g-line, i-line, and excimer lasers (for example, XeCl, KrF, KrCl). , ArF, ArCl, F 2 , Kr 2 , KrAr, Ar 2, etc.).
- an acid is generated from a photoacid generator by light irradiation, and this acid causes the monomer unit a (monomer unit a and monomer unit c if the monomer unit c is also included) of the polymer compound.
- the acid leaving group (protecting group for the carboxyl group) is rapidly eliminated to generate a carboxyl group that contributes to solubilization.
- the compound desorbed from the monomer unit a by acid exhibits alkali solubility, it can be washed away with an alkali developer, and the occurrence of scum on the substrate surface can be suppressed. Therefore, a fine pattern can be accurately formed by development with water or an alkali developer.
- the weight average molecular weight (Mw) and number average molecular weight (Mn) of the polymer were determined by GPC measurement (gel permeation chromatography) using a tetrahydrofuran solvent. Polystyrene was used as the standard sample, and a refractometer (Refractive Index Detector; RI detector) was used as the detector. For GPC measurement, three columns “KF-806L” manufactured by Showa Denko Co., Ltd.
- Example 1 (Production of polymer compound represented by the following formula) In a round bottom flask equipped with a reflux tube, a stirrer, a three-way cock, and a thermometer, 35.7 g of cyclohexanone was placed under a nitrogen atmosphere to maintain the temperature at 80 ° C., and while stirring, 5-methacryloyloxy-3-oxa Tricyclo [4.2.1.0 4,8 ] nonan-2-one 13.56 g (61.1 mmol), 1-hydroxy-3-methacryloyloxyadamantane 3.60 g (15.3 mmol), 1- (1 -Methacryloyloxy-1-methylethyl) cyclopropane 12.83 g (76.4 mmol), dimethyl 2,2′-azobisisobutyrate (trade name “V-601”, manufactured by Wako Pure Chemical Industries, Ltd.) 1 A monomer solution in which .80 g and 66.3 g of cyclohexanone were mixed was dropped at a constant rate over 6 hours
- Example 2 (Production of polymer compound represented by the following formula) As a monomer component, 5-methacryloyloxy-3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one 10.45 g (47.1 mmol), 3-methacryloyloxy-2-oxotetrahydrofuran 2 .67 g (15.7 mmol), 1-hydroxy-3-methacryloyloxyadamantane 3.70 g (15.7 mmol), 1- (1-methacryloyloxy-1-methylethyl) cyclopropane 13.18 g (78.5 mmol) The same operation as in Example 1 was carried out except that it was used, whereby 27.0 g of the desired polymer compound was obtained. The recovered polymer compound was analyzed by GPC. As a result, the weight average molecular weight (Mw) was 9500, and the molecular weight distribution (Mw / Mn) was 1.92.
- Mw weight average molecular weight
- Mw / Mn was
- Example 3 (Production of polymer compound represented by the following formula) As a monomer component, 5- (2-methacryloyloxyacetoxy) -3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one 15.30 g (54.6 mmol), 1-hydroxy-3 -The same operation as in Example 1 was performed except that 3.22 g (13.7 mmol) of methacryloyloxyadamantane and 11.48 g (68.3 mmol) of 1- (1-methacryloyloxy-1-methylethyl) cyclopropane were used. As a result, 26.8 g of the desired polymer compound was obtained. The recovered polymer compound was analyzed by GPC. As a result, the weight average molecular weight (Mw) was 8700, and the molecular weight distribution (Mw / Mn) was 1.88.
- Mw weight average molecular weight
- Mw / Mn the molecular weight distribution
- Example 4 (Production of polymer compound represented by the following formula) As the monomer component, 14.36 g (58.1 mmol) of 1-cyano-5-methacryloyloxy-3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one, 1-hydroxy-3- The same operation as in Example 1 was carried out except that 3.43 g (14.57 mmol) of methacryloyloxyadamantane and 12.21 g (72.7 mmol) of 1- (1-methacryloyloxy-1-methylethyl) cyclopropane were used. As a result, 27.1 g of the desired polymer compound was obtained. When the recovered polymer compound was analyzed by GPC, it was found that the weight average molecular weight (Mw) was 9100 and the molecular weight distribution (Mw / Mn) was 1.90.
- Mw weight average molecular weight
- Mw / Mn molecular weight distribution
- Example 5 (Production of polymer compound represented by the following formula) As a monomer component, 11.19 g (45.3 mmol) of 1-cyano-5-methacryloyloxy-3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one, 3-methacryloyloxy-2 -Oxotetrahydrofuran 2.57 g (15.1 mmol), 1-hydroxy-3-methacryloyloxyadamantane 3.56 g (15.1 mmol), 1- (1-methacryloyloxy-1-methylethyl) cyclopropane 12.68 g (75 0.5 mmol) was used in the same manner as in Example 1 to obtain 26.6 g of the desired polymer compound. When the recovered polymer compound was analyzed by GPC, the weight average molecular weight (Mw) was 9300, and the molecular weight distribution (Mw / Mn) was 1.90.
- Mw weight average molecular weight
- Mw / Mn molecular weight distribution
- Example 6 (Production of polymer compound represented by the following formula) As a monomer component, 15.94 g (52.3 mmol) of 1-cyano-5- (2-methacryloyloxyacetoxy) -3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one, Example 1 except that 3.08 g (13.1 mmol) of 1-hydroxy-3-methacryloyloxyadamantane and 10.98 g (65.3 mmol) of 1- (1-methacryloyloxy-1-methylethyl) cyclopropane were used. As a result, 26.7 g of the desired polymer compound was obtained. The recovered polymer compound was analyzed by GPC. As a result, the weight average molecular weight (Mw) was 8500, and the molecular weight distribution (Mw / Mn) was 1.86.
- Mw weight average molecular weight
- Mw / Mn the molecular weight distribution
- Example 7 (Production of polymer compound represented by the following formula) As a monomer component, 1-cyano-5- (2-methacryloyloxyacetoxy) -3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one 19.34 g (63.4 mmol), 1 The same operation as in Example 1 was carried out except that 10.66 g (63.4 mmol) of-(1-methacryloyloxy-1-methylethyl) cyclopropane was used, to obtain 25.6 g of the desired polymer compound. . The recovered polymer compound was analyzed by GPC. As a result, the weight average molecular weight (Mw) was 8600, and the molecular weight distribution (Mw / Mn) was 1.84.
- Mw weight average molecular weight
- Mw / Mn molecular weight distribution
- Example 8 (Production of polymer compound represented by the following formula) As a monomer component, 5-methacryloyloxy-3-oxa-2-thiatricyclo [4.2.1.0 4,8 ] nonane-2,2-dione 14.69 g (56.9 mmol), 1-hydroxy-3- The same operation as in Example 1 was carried out except that 3.36 g (14.2 mmol) of methacryloyloxyadamantane and 11.95 g (71.2 mmol) of 1- (1-methacryloyloxy-1-methylethyl) cyclopropane were used. As a result, 27.1 g of the desired polymer compound was obtained. GPC analysis of the recovered polymer compound revealed that the weight average molecular weight (Mw) was 8900 and the molecular weight distribution (Mw / Mn) was 1.88.
- Mw weight average molecular weight
- Mw / Mn molecular weight distribution
- Example 9 (Production of polymer compound represented by the following formula) As a monomer component, 5-methacryloyloxy-3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one 12.94 g (58.3 mmol), 1-hydroxy-3-methacryloyloxyadamantane 3 .44 g (14.6 mmol), 1- (1-methacryloyloxy-1-methylethyl) cyclopropane 9.80 g (58.3 mmol), 1- (1-methacryloyloxy-1-methylethyl) adamantane 3.82 g ( The same operation as in Example 1 was carried out except that 14.6 mmol) was used, and 27.5 g of the desired polymer compound was obtained. When the recovered polymer compound was analyzed by GPC, it was found that the weight average molecular weight (Mw) was 9000 and the dispersity (Mw / Mn) was 1.90.
- Mw weight average molecular weight
- Mn dis
- Example 10 (Production of polymer compound represented by the following formula) As a monomer component, 5-methacryloyloxy-3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one 9.96 g (44.9 mmol), 3-methacryloyloxy-2-oxotetrahydrofuran 5 0.08 g (29.9 mmol), 1- (1-methacryloyloxy-1-methylethyl) cyclopropane 7.54 g (44.9 mmol), 2-ethyl-2-methacryloyloxyadamantane 7.42 g (29.9 mmol) The same operation as in Example 1 was carried out except that it was used, whereby 25.4 g of the desired polymer compound was obtained. The recovered polymer compound was analyzed by GPC. As a result, the weight average molecular weight (Mw) was 8600, and the molecular weight distribution (Mw / Mn) was 1.85.
- Mw weight average molecular weight
- Example 11 (Production of polymer compound represented by the following formula) As a monomer component, 14.17 g (57.4 mmol) of 1-cyano-5-methacryloyloxy-3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one, 1-hydroxy-3- 3.38 g (14.3 mmol) of methacryloyloxyadamantane, 7.23 g (43.0 mmol) of 1- (1-methacryloyloxy-1-methylethyl) cyclopropane, 5.22 g of 1-ethyl-1-methacryloyloxycyclopentane ( The same operation as in Example 1 was carried out except that 28.7 mmol) was used, and 25.9 g of the desired polymer compound was obtained. The recovered polymer compound was analyzed by GPC. As a result, the weight average molecular weight (Mw) was 8300, and the molecular weight distribution (Mw / Mn) was 1.81.
- Mw weight average
- Example 12 (Production of polymer compound represented by the following formula) As a monomer component, 13.73 g (55.6 mmol) of 1-cyano-5-methacryloyloxy-3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one, 1-hydroxy-3- 3.28 g (13.9 mmol) of methacryloyloxyadamantane, 9.34 g (55.6 mmol) of 1- (1-methacryloyloxy-1-methylethyl) cyclopropane, 1- (1-methacryloyloxy-1-methylethyl) adamantane
- the same operation as in Example 1 was carried out except that 3.64 g (13.9 mmol) was used, and 27.0 g of the desired polymer compound was obtained.
- GPC analysis of the recovered polymer compound revealed that the weight average molecular weight (Mw) was 8900 and the molecular weight distribution (Mw / Mn) was 1.88.
- Example 13 (Production of polymer compound represented by the following formula) As a monomer component, 1-cyano-5- (2-methacryloyloxyacetoxy) -3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one 14.73 g (48.3 mmol), 1 -Hydroxy-3-methacryloyloxyadamantane 2.85 g (12.1 mmol), 1- (1-methacryloyloxy-1-methylethyl) cyclopropane 6.09 g (36.2 mmol), 1- (1-methacryloyloxy-1 The same operation as in Example 1 was carried out except that 6.33 g (24.2 mmol) of -methylethyl) adamantane was used, and 26.9 g of the desired polymer compound was obtained. The recovered polymer compound was analyzed by GPC. As a result, the weight average molecular weight (Mw) was 8600, and the molecular weight distribution (Mw / Mn) was
- Example 14 (Production of polymer compound represented by the following formula) As a monomer component, 1-cyano-5- (2-methacryloyloxyacetoxy) -3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one 11.24 g (36.8 mmol), 3 -Methacryloyloxy-2-oxotetrahydrofuran 2.09 g (12.3 mmol), 1-hydroxy-3-methacryloyloxyadamantane 2.90 g (12.3 mmol), 1- (1-methacryloyloxy-1-methylethyl) cyclopropane The same operation as in Example 1 was carried out except that 4.13 g (24.6 mmol) and 1- (1-methacryloyloxy-1-methylethyl) adamantane 9.65 g (36.8 mmol) were used.
- Example 15 (Production of polymer compound represented by the following formula) As a monomer component, 5-methacryloyloxy-3-oxa-2-thiatricyclo [4.2.1.0 4,8 ] nonane-2,2-dione 14.06 g (54.5 mmol), 1-hydroxy-3- Methacryloyloxyadamantane 3.22 g (13.6 mmol), 1- (1-methacryloyloxy-1-methylethyl) cyclopropane 9.16 g (54.5 mmol), 1- (1-methacryloyloxy-1-methylethyl) adamantane
- the same operation as in Example 1 was carried out except that 3.57 g (13.6 mmol) was used, and 27.2 g of a desired polymer compound was obtained.
- the recovered polymer compound was analyzed by GPC. As a result, the weight average molecular weight (Mw) was 9100, and the molecular weight distribution (Mw / Mn) was 1.92.
- Example 16 (Production of polymer compound represented by the following formula) As a monomer component, 5-methacryloyloxy-3-oxa-2-thiatricyclo [4.2.1.0 4,8 ] nonane-2,2-dione 10.98 g (42.6 mmol), 3-methacryloyloxy-2 -Oxotetrahydrofuran 4.82 g (28.4 mmol), 1- (1-methacryloyloxy-1-methylethyl) cyclopropane 7.15 g (42.6 mmol), 2-ethyl-2-methacryloyloxyadamantane 7.04 g (28 .4 mmol) was used in the same manner as in Example 1 to obtain 26.1 g of the desired polymer compound. When the recovered polymer compound was analyzed by GPC, the weight average molecular weight (Mw) was 8400, and the molecular weight distribution (Mw / Mn) was 1.83.
- Mw weight average molecular weight
- Comparative Example 1 (Production of polymer compound represented by the following formula) As a monomer component, 5-methacryloyloxy-3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one 10.94 g (49.3 mmol), 1-hydroxy-3-methacryloyloxyadamantane 2 The same procedure as in Example 1 was performed, except that .91 g (12.3 mmol) and 1- (1-methacryloyloxy-1-methylethyl) adamantane 16.15 g (61.6 mmol) were used. 27.6 g of molecular compound was obtained. When the recovered polymer compound was analyzed by GPC, the weight average molecular weight (Mw) was 8400, and the molecular weight distribution (Mw / Mn) was 1.82.
- Mw weight average molecular weight
- Mn molecular weight distribution
- Comparative Example 2 (Production of polymer compound represented by the following formula) As a monomer component, 11.70 g (47.4 mmol) of 1-cyano-5-methacryloyloxy-3-oxatricyclo [4.2.1.0 4,8 ] nonan-2-one, 1-hydroxy-3- The same operation as in Example 1 was carried out except that 2.79 g (11.8 mmol) of methacryloyloxyadamantane and 15.51 g (59.2 mmol) of 1- (1-methacryloyloxy-1-methylethyl) adamantane were used. As a result, 27.3 g of a desired polymer compound was obtained. The recovered polymer compound was analyzed by GPC. As a result, the weight average molecular weight (Mw) was 8500, and the molecular weight distribution (Mw / Mn) was 1.84.
- Mw weight average molecular weight
- Mw / Mn the molecular weight distribution
- Example 17 (Preparation of resin composition for photoresist) 3 parts by weight of triphenylsulfonium hexafluoroantimonate and 0.3 parts by weight of 1,5-diazabicyclo [4.3.0] -5-nonene with respect to 100 parts by weight of the polymer compound obtained in Example 1 Then, propylene glycol monomethyl ether acetate (PGMEA) was further added to prepare a resin composition for photoresist having a polymer concentration of 10% by weight.
- PGMEA propylene glycol monomethyl ether acetate
- the obtained resin composition for photoresist is filtered through a 0.1 ⁇ m polyethylene filter, applied onto a silicon wafer by spin coating, and subjected to a heat treatment at 120 ° C. for 90 seconds to give a photosensitive film having a thickness of about 0.3 ⁇ m. A layer was formed. After exposing the line and space pattern with an ArF excimer laser having a wavelength of 193 nm, the film was subjected to a heat treatment at a temperature of 120 ° C. for 90 seconds, developed with a 0.3M tetramethylammonium hydroxide aqueous solution, and rinsed with pure water. As a result, a line and space pattern of 0.12 ⁇ m was clearly and accurately obtained.
- a line and space pattern was prepared in the same manner as in Example 17.
- the polymer compounds obtained in Examples 2 to 16 were used, a 0.12 ⁇ m line was formed. An and-space pattern was obtained clearly and accurately.
- the polymer compounds obtained in Comparative Examples 1 to 3 were used, although a line and space pattern of 0.12 ⁇ m was obtained, a lot of resist scum was observed in the space portion.
- the polymer compound of the present invention has very high reactivity with acids, and the compounds eliminated by the acids can be easily removed, and the occurrence of scum can be prevented. Furthermore, it is excellent in substrate adhesion and etching resistance. Therefore, when a photoresist resin composition containing the polymer compound of the present invention is used, a fine pattern can be accurately formed.
Abstract
Description
本発明の他の目的は、感度、解像度、エッチング耐性に優れ、ラインエッジラフネス(LER)が小さく、微細パターンを精度よく形成することができ、現像欠陥の発生を低減することができる高分子化合物、フォトレジスト用樹脂組成物を提供することにある。
本発明の更に他の目的は、前記高分子化合物、フォトレジスト用樹脂組成物を使用した半導体の製造方法を提供することにある。
また、酸によりその一部が脱離してアルカリ可溶性を示すモノマー単位として前記炭素数3又は4の小さい脂環構造を有する特定の不飽和カルボン酸エステル由来のモノマー単位と共に炭素数5~20の大きい脂環構造を含む酸脱離性基を有する不飽和カルボン酸エステル由来のモノマー単位を有する高分子化合物は、酸に対する反応性が非常に高く、酸により脱離した化合物は基板表面から容易に除去することができ、スカムの発生を防止してラインエッジラフネス(LER)を低減することができると共に、より一層優れた耐エッチング性を発揮することができる。
更にまた、本発明のフォトレジスト用樹脂組成物を使用する半導体の製造方法によれば、レジストとして上記のように優れた特性を有する高分子化合物を用いるので、微細なパターンを精度よく形成することができる。
本発明の高分子化合物は、前記式(a)で表されるモノマー単位a、及び極性基を有する脂環式骨格を含むモノマー単位bを少なくとも含む。本発明の高分子化合物は、前記モノマー単位a、モノマー単位bの他に、更にモノマー単位cを含んでいてもよい。
本発明のモノマー単位aは前記式(a)で表され、酸により酸脱離性基(カルボキシル基の保護基)が速やかに脱離して、アルカリ可溶化に寄与するカルボキシル基が生成する。本発明のモノマー単位aは高分子化合物に酸によりアルカリ可溶性に変化する性質を付与する。本発明のモノマー単位aは下記式(a-1)で表される不飽和カルボン酸エステルを重合に付すことにより高分子化合物内に導入することができる。
R1MgX1 (1)
R1Li (2)
(式中、R1は置換基を有していてもよい炭素数1~6のアルキル基を示し、X1はハロゲン原子を示す)
で表される有機金属化合物と下記式(3)
で表されるケトンとの付加反応生成物に、第3級アミンの存在下、下記式(4)
で表される不飽和カルボン酸ハライドを反応させることにより製造することができる。
第1工程:前記式(1)又は(2)で表される有機金属化合物と、前記式(3)で表されるケトンを反応させて、前記式(1)で表される有機金属化合物を使用した場合は前記式(5-1)、前記式(2)で表される有機金属化合物を使用した場合は前記式(5-2)で表される第3級アルコールの有機金属化合物付加物を形成する工程
第2工程:前記式(5-1)又は前記式(5-2)で表される第3級アルコールの有機金属化合物付加物に第3級アミンの存在下で前記式(4)で表される不飽和カルボン酸ハライドを反応させ、前記式(a-1)で表される不飽和カルボン酸エステルを形成する工程
前記式(1)又は(2)で表される有機金属化合物の使用量としては、出発原料である式(3)で表されるケトン1モルに対して、例えば0.5~2.0モル、好ましくは0.8~1.8モル、特に好ましくは1.1~1.4モルである。式(1)又は(2)で表される有機金属化合物の使用量が前記範囲を下回ると、収率が低下する傾向がある。一方、式(1)又は(2)で表される有機金属化合物の使用量が前記範囲を上回ると、経済性が悪化する傾向がある。
式(4)で表される不飽和カルボン酸ハライドの使用量としては、出発原料である式(3)で表されるケトン1モルに対して、例えば0.5~20モル程度、好ましくは0.8~8モル、特に好ましくは1~3モルである。式(4)で表される不飽和カルボン酸ハライドの使用量が前記範囲を下回ると、反応速度が低下する傾向がある。一方、式(4)で表される不飽和カルボン酸ハライドの使用量が前記範囲を上回っても反応成績の向上は認められず、経済性が悪化する傾向がある。
本発明のモノマー単位bは極性基を有する脂環式骨格を含むモノマー単位であり、高分子化合物に基盤密着性及び耐エッチング性を付与する働きを有する。
本発明のモノマー単位cは、下記式(c1)~(c4)から選択される少なくとも1種のモノマー単位(モノマー単位bに含まれるものを除く)であり、酸により酸脱離性基(カルボキシル基等の保護基)が速やかに脱離して、アルカリ可溶化に寄与するカルボキシル基を生成する。本発明のモノマー単位cは酸によりアルカリ可溶性に変化する性質及び耐エッチング性を高分子化合物に付与する。
本発明のフォトレジスト用樹脂組成物は、前記高分子化合物と光酸発生剤と有機溶剤を少なくとも含む。
本発明の半導体の製造方法は、前記フォトレジスト用樹脂組成物を使用してパターンを形成することを特徴とし、前記フォトレジスト用樹脂組成物を基材又は基板上に塗布し、乾燥して、塗膜(レジスト膜)を形成した後、所定のマスクを介して、前記塗膜に光線を露光して(又は、さらに露光後ベークを行い)潜像パターンを形成し、次いで現像することにより行うことができる。
尚、ポリマーの重量平均分子量(Mw)及び数平均分子量(Mn)は、テトラヒドロフラン溶媒を用いたGPC測定(ゲル浸透クロマトグラフ)により求めた。標準試料にはポリスチレンを使用し、検出器としては屈折率計(Refractive Index Detector;RI検出器)を用いた。また、GPC測定には、昭和電工(株)製カラム「KF-806L」を3本直列につないで使用し、カラム温度40℃、RI温度40℃、テトラヒドロフラン流速0.8mL/分の条件で行った。分散度(Mw/Mn)は前記測定値より算出した。
容量50mLの4つ口フラスコに還流冷却管と滴下漏斗、温度計を装着した。ここへメチルマグネシウムクロリドのTHF溶液(1.75M)88.3g(メチルマグネシウムクロリドとして0.15mol)を加え、窒素雰囲気下、反応系を撹拌した。
ここへ、シクロプロピルメチルケトン10g(0.12mol)を、反応器内温度を20~25℃に保持しつつ、約1時間かけて滴下した。滴下終了後、反応器内温度を20~30℃に保持しつつ4時間撹拌した。
反応終了後、反応系を酸処理して分析したところ、目的物である1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパンが86%検出された。主たる副生物は、原料由来の化合物である1-メチル-1-シクロプロピルエタノールが4%、メタクリル酸が9%であった。
還流管、撹拌子、3方コック、温度計を備えた丸底フラスコに、窒素雰囲気下、シクロヘキサノン35.7gを入れて温度を80℃に保ち、撹拌しながら、5-メタクリロイルオキシ-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン13.56g(61.1mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.60g(15.3mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン12.83g(76.4mmol)、ジメチル2,2'-アゾビスイソブチレート(商品名「V-601」、和光純薬工業(株)製)1.80g、シクロヘキサノン66.3gを混合したモノマー溶液を6時間かけて一定速度で滴下した。滴下終了後、さらに2時間撹拌を続けた。重合反応終了後、得られた反応溶液を孔径0.1μmのフィルターで濾過した後、該反応溶液の7倍量のヘキサンと酢酸エチルの9:1(重量比)混合液中に撹拌しながら滴下した。生じた沈殿物を濾別、乾燥することにより、所望の高分子化合物27.3gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が9300、分散度(Mw/Mn)が1.91であった。
モノマー成分として、5-メタクリロイルオキシ-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン10.45g(47.1mmol)、3-メタクリロイルオキシ-2-オキソテトラヒドロフラン2.67g(15.7mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.70g(15.7mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン13.18g(78.5mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物27.0gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が9500、分子量分布(Mw/Mn)が1.92であった。
モノマー成分として、5-(2-メタクリロイルオキシアセトキシ)-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン15.30g(54.6mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.22g(13.7mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン11.48g(68.3mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物26.8gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8700、分子量分布(Mw/Mn)が1.88であった。
モノマー成分として、1-シアノ-5-メタクリロイルオキシ-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン14.36g(58.1mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.43g(14.57mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン12.21g(72.7mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物27.1gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が9100、分子量分布(Mw/Mn)が1.90であった。
モノマー成分として、1-シアノ-5-メタクリロイルオキシ-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン11.19g(45.3mmol)、3-メタクリロイルオキシ-2-オキソテトラヒドロフラン2.57g(15.1mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.56g(15.1mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン12.68g(75.5mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物26.6gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が9300、分子量分布(Mw/Mn)が1.90であった。
モノマー成分として、1-シアノ-5-(2-メタクリロイルオキシアセトキシ)-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン15.94g(52.3mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.08g(13.1mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン10.98g(65.3mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物26.7gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8500、分子量分布(Mw/Mn)が1.86であった。
モノマー成分として、1-シアノ-5-(2-メタクリロイルオキシアセトキシ)-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン19.34g(63.4mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン10.66g(63.4mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物25.6gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8600、分子量分布(Mw/Mn)が1.84であった。
モノマー成分として、5-メタクリロイルオキシ-3-オキサ-2-チアトリシクロ[4.2.1.04,8]ノナン-2,2-ジオン14.69g(56.9mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.36g(14.2mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン11.95g(71.2mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物27.1gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8900、分子量分布(Mw/Mn)が1.88であった。
モノマー成分として、5-メタクリロイルオキシ-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン12.94g(58.3mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.44g(14.6mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン9.80g(58.3mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)アダマンタン3.82g(14.6mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物27.5gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が9000、分散度(Mw/Mn)が1.90であった。
モノマー成分として、5-メタクリロイルオキシ-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン9.96g(44.9mmol)、3-メタクリロイルオキシ-2-オキソテトラヒドロフラン5.08g(29.9mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン7.54g(44.9mmol)、2-エチル-2-メタクリロイルオキシアダマンタン7.42g(29.9mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物25.4gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8600、分子量分布(Mw/Mn)が1.85であった。
モノマー成分として、1-シアノ-5-メタクリロイルオキシ-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン14.17g(57.4mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.38g(14.3mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン7.23g(43.0mmol)、1-エチル-1-メタクリロイルオキシシクロペンタン5.22g(28.7mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物25.9gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8300、分子量分布(Mw/Mn)が1.81であった。
モノマー成分として、1-シアノ-5-メタクリロイルオキシ-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン13.73g(55.6mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.28g(13.9mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン9.34g(55.6mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)アダマンタン3.64g(13.9mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物27.0gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8900、分子量分布(Mw/Mn)が1.88であった。
モノマー成分として、1-シアノ-5-(2-メタクリロイルオキシアセトキシ)-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン14.73g(48.3mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン2.85g(12.1mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン6.09g(36.2mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)アダマンタン6.33g(24.2mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物26.9gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8600、分子量分布(Mw/Mn)が1.86であった。
モノマー成分として、1-シアノ-5-(2-メタクリロイルオキシアセトキシ)-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン11.24g(36.8mmol)、3-メタクリロイルオキシ-2-オキソテトラヒドロフラン2.09g(12.3mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン2.90g(12.3mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン4.13g(24.6mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)アダマンタン9.65g(36.8mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物26.5gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8700、分子量分布(Mw/Mn)が1.86であった。
モノマー成分として、5-メタクリロイルオキシ-3-オキサ-2-チアトリシクロ[4.2.1.04,8]ノナン-2,2-ジオン14.06g(54.5mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン3.22g(13.6mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン9.16g(54.5mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)アダマンタン3.57g(13.6mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物27.2gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が9100、分子量分布(Mw/Mn)が1.92であった。
モノマー成分として、5-メタクリロイルオキシ-3-オキサ-2-チアトリシクロ[4.2.1.04,8]ノナン-2,2-ジオン10.98g(42.6mmol)、3-メタクリロイルオキシ-2-オキソテトラヒドロフラン4.82g(28.4mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)シクロプロパン7.15g(42.6mmol)、2-エチル-2-メタクリロイルオキシアダマンタン7.04g(28.4mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物26.1gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8400、分子量分布(Mw/Mn)が1.83であった。
モノマー成分として、5-メタクリロイルオキシ-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン10.94g(49.3mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン2.91g(12.3mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)アダマンタン16.15g(61.6mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物27.6gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8400、分子量分布(Mw/Mn)が1.82であった。
モノマー成分として、1-シアノ-5-メタクリロイルオキシ-3-オキサトリシクロ[4.2.1.04,8]ノナン-2-オン11.70g(47.4mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン2.79g(11.8mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)アダマンタン15.51g(59.2mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物27.3gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8500、分子量分布(Mw/Mn)が1.84であった。
モノマー成分として、5-メタクリロイルオキシ-3-オキサ-2-チアトリシクロ[4.2.1.04,8]ノナン-2,2-ジオン12.01g(46.5mmol)、1-ヒドロキシ-3-メタクリロイルオキシアダマンタン2.75g(11.6mmol)、1-(1-メタクリロイルオキシ-1-メチルエチル)アダマンタン15.24g(58.2mmol)を用いた以外は実施例1と同様の操作を行ったところ、所望の高分子化合物28.1gを得た。回収した高分子化合物をGPC分析したところ、重量平均分子量(Mw)が8600、分子量分布(Mw/Mn)が1.85であった。
実施例1で得られた高分子化合物100重量部に対して3重量部のトリフェニルスルホニウムヘキサフルオロアンチモネート及び0.3重量部の1,5-ジアザビシクロ[4.3.0]-5-ノネンを加え、更にプロピレングリコールモノメチルエーテルアセテート(PGMEA)を加えてポリマー濃度10重量%のフォトレジスト用樹脂組成物を調製した。
実施例1で得られた高分子化合物に代えて実施例2~16及び比較例1~3で得られた各高分子化合物を使用した以外は実施例17と同様にしてフォトレジスト用樹脂組成物を得た。
Claims (8)
- 下記式(a)で表されるモノマー単位a、及び極性基を有する脂環式骨格を含むモノマー単位bを少なくとも含む高分子化合物。
- 前記モノマー単位bの極性基が、-O-、-C(=O)-、-C(=O)-O-、-O-C(=O)-O-、-C(=O)-O-C(=O)-、-C(=O)-NH-、-S(=O)-O-、-S(=O)2-O-、-ORa、-C(=O)-ORa(Ra:置換基を有していてもよいアルキル基)、及び-CNから選択される少なくとも1種の基である請求項1に記載の高分子化合物。
- 前記モノマー単位bが下記式(b1)~(b6)から選択される少なくとも1種である請求項1に記載の高分子化合物。
- 更に、下記式(c1)~(c4)から選択される少なくとも1種のモノマー単位cを含む請求項1~3の何れか1項に記載の高分子化合物。
- 重量平均分子量が1000~50000である請求項1~4の何れか1項に記載の高分子化合物。
- 分子量分布(重量平均分子量と数平均分子量との比:Mw/Mn)が1.0~3.0である請求項1~5の何れか1項に記載の高分子化合物。
- 請求項1~6の何れか1項に記載の高分子化合物と光酸発生剤と有機溶剤を少なくとも含むフォトレジスト用樹脂組成物。
- 請求項7に記載のフォトレジスト用樹脂組成物を使用してパターンを形成することを特徴とする半導体の製造方法。
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- 2013-06-17 KR KR1020147034796A patent/KR102076529B1/ko active IP Right Grant
- 2013-06-17 WO PCT/JP2013/066577 patent/WO2014002810A1/ja active Application Filing
- 2013-06-17 CN CN201380029608.0A patent/CN104379617A/zh active Pending
- 2013-06-17 US US14/406,238 patent/US9261785B2/en active Active
- 2013-06-28 TW TW102123110A patent/TW201412790A/zh unknown
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JPH10221852A (ja) * | 1997-02-06 | 1998-08-21 | Fuji Photo Film Co Ltd | ポジ型感光性組成物 |
JPH10232495A (ja) * | 1997-02-18 | 1998-09-02 | Fuji Photo Film Co Ltd | ポジ型感光性組成物 |
JPH10239847A (ja) * | 1997-02-28 | 1998-09-11 | Fuji Photo Film Co Ltd | ポジ型感光性組成物 |
JPH10307397A (ja) * | 1997-05-09 | 1998-11-17 | Fuji Photo Film Co Ltd | ポジ型感光性組成物 |
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JP2000047386A (ja) * | 1998-07-27 | 2000-02-18 | Fuji Photo Film Co Ltd | ポジ型感光性組成物 |
JP2000098613A (ja) * | 1998-09-24 | 2000-04-07 | Fuji Photo Film Co Ltd | ポジ型レジスト組成物 |
JP2002107920A (ja) * | 2000-09-28 | 2002-04-10 | Fuji Photo Film Co Ltd | 電子線又はx線用ポジ型レジスト組成物 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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TWI754683B (zh) * | 2016-10-20 | 2022-02-11 | 日商Jsr股份有限公司 | 抗蝕劑底層膜形成用組成物、抗蝕劑底層膜及其形成方法、經圖案化基板的製造方法及化合物 |
Also Published As
Publication number | Publication date |
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US20150168831A1 (en) | 2015-06-18 |
CN104379617A (zh) | 2015-02-25 |
KR20150028243A (ko) | 2015-03-13 |
KR102076529B1 (ko) | 2020-02-13 |
US9261785B2 (en) | 2016-02-16 |
TW201412790A (zh) | 2014-04-01 |
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