WO2006011287A1 - 2-オキサトリシクロ[4.2.1.04,8]ノナン-3-オン環を有する繰り返し単位を含む高分子化合物、及びフォトレジスト用樹脂組成物 - Google Patents
2-オキサトリシクロ[4.2.1.04,8]ノナン-3-オン環を有する繰り返し単位を含む高分子化合物、及びフォトレジスト用樹脂組成物 Download PDFInfo
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- WO2006011287A1 WO2006011287A1 PCT/JP2005/009522 JP2005009522W WO2006011287A1 WO 2006011287 A1 WO2006011287 A1 WO 2006011287A1 JP 2005009522 W JP2005009522 W JP 2005009522W WO 2006011287 A1 WO2006011287 A1 WO 2006011287A1
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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
- C08F220/26—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
- C08F220/281—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing only one oxygen, e.g. furfuryl (meth)acrylate or 2-methoxyethyl (meth)acrylate
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
- Y10S430/106—Binder containing
- Y10S430/111—Polymer of unsaturated acid or ester
Definitions
- the present invention relates to a polymer compound for a photoresist used when performing microfabrication of a semiconductor, a resin composition for a photoresist containing the polymer compound, and a resin composition for a photoresist.
- the present invention relates to a method of manufacturing a semiconductor using
- Resin resin for photoresists used in semiconductor manufacturing processes has the property that the irradiated area changes to alkali-soluble when irradiated with light, adherence to a silicon wafer (substrate), resistance to plasma etching, and transparency to the light used. It must have characteristics such as sex.
- the photoresist resin is generally used as a solution containing a main polymer, a photo-oxidant, and several additives for adjusting the above characteristics.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-26446
- Patent Document 2 Japanese Patent Laid-Open No. 2000-122294
- an object of the present invention is to provide a novel polymer compound that is excellent in substrate adhesion and etching resistance and highly soluble in a resist solvent.
- Another object of the present invention is to provide a resin composition for a photoresist capable of forming a fine pattern clearly and accurately, and a method for producing a semiconductor. Means for solving the problem
- the present inventors have made intensive investigations to achieve the above objects, 2- O key Satorishikuro a specific structure [4.2.4 1.0 4 '8] monomer units having nonane one 3-one ring
- a polymer compound containing is used as a resin for a photoresist
- it is easy to dissolve in a resist solvent and a resin for a photoresist having a good balance of properties such as alkali solubility, substrate adhesion, and etching resistance is obtained.
- the present invention has been completed by discovering that a desired pattern can be clearly and accurately formed by using this resin.
- Ra represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, or a haloalkyl group having 1 to 6 carbon atoms.
- R 2 is the same or different and represents a hydrogen atom or a hydrocarbon group. However, At least one of R 2 is a hydrocarbon group. R 1 and R 2 may be bonded to each other to form a ring with adjacent carbon atoms.
- R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 are the same or different and represent a hydrogen atom or a hydrocarbon group
- a polymer compound comprising at least one monomer unit represented by the formula:
- the polymer compound may further include a monomer unit having a group that is partly eliminated by an acid and becomes alkali-soluble, and is capable of imparting adhesion to the substrate. Including [excluding the monomer unit represented by the formula (I)].
- the polymer compound includes at least one monomer unit represented by the formula (I) and the following formulas (IIa) to (Ilh): [Chemical 2]
- R a represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms or a haloalkyl group having 1 to 6 carbon atoms.
- R 1Q and R 11 are the same or different and have 1 to 8 carbon atoms.
- R 12 , R 13 and R 14 are the same or different and each represents a hydrogen atom, a hydroxyl group or a methyl group, and R 15 and R 16 are the same or different and represent a hydrogen atom, a hydroxyl group, or a hydroxyl group.
- R 17 represents a t-butyl group, a 2-tetrahydrofuran group, a 2-tetrahydrobiranyl group or a 2-oxepanyl group
- R 18 represents a methyl group or an ethyl group
- R 19 and R 2Q show the same or different and each represents a hydrogen atom, a hydroxyl group or Okiso group.
- R 21 Represents a hydrocarbon group which has a tertiary carbon atom at the bonding site with the oxygen atom shown in the formula and may have a substituent.
- R 22 , R 23 , R 24 , R 25 and R 26 are the same or different and each represents a hydrogen atom or a methyl group.
- R 27 represents a t-butyl group, a 2-tetrahydrofuranyl group, a 2-tetrahydrovinyl group or a 2-oxepanyl group.
- R 28 and R 29 are the same or different and each represents a hydrogen atom, an alkyl group or a fluoroalkyl group, and R 3Q represents a hydrogen atom or an organic group.
- m represents an integer of 1 to 3
- n represents 0 or 1)
- the polymer compound may have the following formulas (Ilia) to (Illh)
- R a represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms or a haloalkyl group having 1 to 6 carbon atoms.
- R 31 and R 32 may be the same or different and each represents a hydrogen atom, a hydroxyl group, R 33 represents a hydroxyl group, an oxo group or a carboxyl group X 1 , X 2 and X 3 are the same or different and represent —CH— or —CO—O—.
- R 34 , R 35 and R 36 are the same or different and each represents a hydrogen atom or a methyl group.
- R 37 and R 38 are the same or different and each represents a hydrogen atom or a methyl group.
- R 39 , R 4Q , R ", R 42 and R 43 are It is the same or different and represents a hydrogen atom or a methyl group.
- R 44 represents a hydrogen atom or a linear, branched, cyclic or bridged cyclic hydrocarbon group having 1 to 20 carbon atoms which may have a substituent.
- R 45 , R 46 , R 47 and R 48 are the same or different and each represents a hydrogen atom or a methyl group.
- the monomer unit force represented by may also contain at least one selected monomer unit.
- the present invention further provides a resin composition for a photoresist, comprising at least the polymer compound and a photoacid generator.
- the present invention further includes a step of coating the resin composition for photoresist on a substrate or substrate to form a resist coating film, and forming a pattern through exposure and development.
- a manufacturing method is provided.
- polymer compound of the present invention includes a monomer unit having a 2 Okisa tricyclo [4.2.4 1.0 4 '8] nonan one 3-one ring having at least 5-position hydrocarbon group Therefore, it exhibits high solubility in resist solvents that not only have high substrate adhesion and etching resistance.
- a monomer unit having other functions it is possible to combine properties such as alkali solubility, substrate adhesion, and etching resistance in a well-balanced manner.
- the polymer compound having the excellent characteristics as described above is used as a resist, so that a fine pattern can be obtained with high accuracy. Can be formed.
- the polymer compound of the present invention contains at least one repeating unit represented by the formula (I).
- the formula (I) represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, or a haloalkyl group having 1 to 6 carbon atoms.
- R 2 is the same or different and represents a hydrogen atom or a hydrocarbon group. However, At least one of R 2 is a hydrocarbon group.
- R 1 and R 2 are , May be bonded to each other to form a ring with adjacent carbon atoms.
- R 4 , R 5 and RR 9 are the same or different and each represents a hydrogen atom or a hydrocarbon group.
- the halogen atom in R A includes fluorine, chlorine, bromine atom and the like.
- alkyl group having 1 to 6 carbon atoms include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, s-butyl, t-butyl, and hexyl groups.
- alkyl group having 1 to 6 carbon atoms examples include groups in which at least one hydrogen atom of the alkyl group having 1 to 6 carbon atoms is substituted with a fluorine atom, such as monofluoromethyl, difluoromethyl, trifluoromethyl, 2 , 2, 2-trifluoroethyl, tetrafluoroethyl, 2, 2, 3, 3, 3-tetrafluoropropyl group, and the like.
- R A is particularly preferably a hydrogen atom or a methyl group.
- the hydrocarbon group for R 9 includes an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an aromatic hydrocarbon group, and a group in which two or more of these are bonded.
- the aliphatic hydrocarbon group include linear or branched alkyl groups such as methyl, ethyl, propyl, isopropyl, propyl, isobutyl, s-butyl, t-butyl, hexyl, octyl groups (C Alkyl groups, etc.); straight or branched chain alkyls such as aryl groups
- Lucenyl group (C alkenyl group, etc.); linear or branched chain such as propynyl group
- a quinyl group (C alkynyl group etc.) etc. are mentioned.
- Examples of alicyclic hydrocarbon groups include
- cycloalkyl groups such as cyclopropyl, cyclopentyl and cyclohexyl groups (3- to 8-membered cycloalkyl groups); cycloalkenyl groups such as cyclopentale and cyclohexyl groups (3- to 8-membered cycloalkenyl groups) Groups); bridged carbon cyclic groups such as adamantyl and norbornyl groups (C bridged carbocyclic groups, etc.).
- aromatic hydrocarbon group such as cyclopropyl, cyclopentyl and cyclohexyl groups (3- to 8-membered cycloalkyl groups)
- bridged carbon cyclic groups such as adamantyl and norbornyl groups (C bridged carbocyclic groups, etc.).
- Examples of the group in which an aliphatic hydrocarbon group and an aromatic hydrocarbon group are bonded include C-aralkyl groups such as benzyl and 2-phenylethyl groups. Among the above hydrocarbon groups
- hydrocarbon groups include an alkyl group (C alkyl group, etc.), a haloalkyl group (C halo group).
- halogen atom hydroxyl group optionally protected by a protecting group
- protection It may be protected with a group, or may be protected with a hydroxymethyl group or a protecting group, and may have a substituent such as a carboxyl group or an oxo group.
- a protecting group conventionally used in the field of organic synthesis can be used.
- Examples of the ring formed by combining R 1 and R 2 together with adjacent carbon atoms include cycloalkane rings such as cyclopropane ring, cyclopentane ring, cyclohexane ring, cyclooctane ring (3- 8-membered cycloalkane ring); cycloalkene ring such as cyclohexene ring (3- to 8-membered cycloalkene ring etc.); bridged carbon ring such as adamantane ring and norbornane ring (C bridged carbocyclic ring etc.) Can be mentioned. These rings have the same substituents as above.
- a group hydrocarbon group and a C aralkyl group are preferred.
- One of R 1 and R 2 is a C alkyl group (
- R 1 and R 2 are a hydrogen atom or methyl.
- R 1 and R 2 are bonded to each other
- R 5 , R 8 and R 9 are preferably a hydrogen atom or a C alkyl group, particularly a hydrogen atom or methyl
- a c alkyl group such as a group is preferred.
- R 2 is the same or different and represents a hydrogen atom or a hydrocarbon group. However, At least one of R 2 is a hydrocarbon group. R 1 and R 2 may be bonded to each other to form a ring with adjacent carbon atoms. R 3 , R 5 , R 6 , R 7 , R 8 and R 9 are the same or different and represent a hydrogen atom or a hydrocarbon group)
- a typical example of a 0 4 ' 8 ] nonane-3-one derivative is 9- (meth) atarylilooxy-5-methyl 2-oxatricyclo [4. 2. 1. 0 4 ' 8 ] nonane 3—one, 9— (meth) atarioxyl 4,5 dimethyl-2-oxatricyclo [4. 2. 1. 0 4 ' 8 ] nonane 1 3-one, 9— (meth) atallyloyloxy— 5, 5 Dimethyl-2-oxatricyclo [4. 2. 1. 0 4 ' 8 ] Nonane-3-one, 5 ethyl-9- (meth) atallyloyloxy-2-oxatricyclo [4. 2. 1.
- the ⁇ -unsaturated acyloxy ⁇ -butyrolatatone derivative represented by the formula (1) can be obtained, for example, by the method described in JP-A-2002-212174.
- the polymer compound of the present invention has at least one monomer unit (repeating unit) represented by the above formula (I) as a structural unit constituting the polymer molecule (hereinafter referred to as “monomer unit 1”). Is included).
- This monomer unit 1 has a 2-oxatricyclo [4. 2. 1. 0 4 ' 8 ] nonane-3-one ring containing a highly hydrophilic rataton skeleton, and therefore has good adhesion to the substrate. Functions as an adhesion-imparting unit that enhances. Moreover, since it has an alicyclic ring, etching resistance can be improved. Furthermore, since a hydrocarbon group is bonded to the 5-position of the 2-oxatricyclo [4. 2. 1.
- a resist solvent for example, propylene glycol monomethyl ether
- Glycol ethers propylene glycol monomethyl ether acetate and other Dalicol ether esters
- the polymer containing the monomer unit 1 can be suitably used as a resin for photoresist. Since the polymer compound of the present invention has various functions necessary as a photoresist in a well-balanced manner, the polymer compound further adheres to a monomer unit having a group that is partially eliminated by an acid and becomes alkali-soluble, or to a substrate.
- Monomer unit capable of imparting properties [excluding the monomer unit represented by the formula (I)] (for example, a monomer unit containing a rataton skeleton and an alicyclic skeleton having Z, a hydroxyl group, a mercapto group or a carboxyl group) Including monomer units).
- At least one monomer unit represented by the formula (I) and at least one monomer unit selected from the formulas (IIa) to (IIh) (repeating unit) (Hereinafter sometimes referred to as “monomer unit 2”)!
- Ra in the formulas (IIa) to (IIh) is the same as described above.
- R 1Q , R U hydrocarbon having 1 to 8 carbon atoms includes methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sbutyl, pentyl, isopentyl, 1-methylbutyl, 1 ethylpropyl, C alkyl group such as xylyl, isohexyl, 1-methylpentyl, 1-ethylbutyl, heptyl, 1-methylhexyl, octyl, 1methylheptyl group; cyclopropyl
- C alkyl groups such as methyl, ethyl, and isopropyl groups are preferable.
- examples of the “hydrocarbon group having a tertiary carbon atom at the bonding site with the oxygen atom represented by the formula” in R 21 include a t-butyl group and a t-amyl group. And so on. These hydrocarbon groups may have a substituent.
- alkyl group for R 28 and R 29 a linear or branched alkyl group such as a methyl, ethyl, propyl, isopyl pill, s-butyl, pentyl, hexyl group, etc. (C alkyl group and the like).
- fluoroalkyl group the alkyl
- a group in which at least one hydrogen atom of the group is substituted by a fluorine atom for example, monofluoromethyl, difluoromethyl, trifluoromethyl, 2, 2, 2-trifluoroethyl, tetrafluoroethyl, 2, 2, 3, 3, 3 -Tetrafluoropropyl group and the like can be mentioned.
- R 28 and R 29 are particularly preferably a hydrogen atom, a C alkyl group, a C fluoroalkyl group, or the like.
- examples of the organic group at R 3 ° include a hydrocarbon group and / or a group containing a heterocyclic group. Examples are the same as the hydrocarbon group for R 2 .
- the heterocyclic group includes a heterocyclic group containing at least one hetero atom selected from an oxygen atom, a sulfur atom and a nitrogen atom.
- Preferable organic groups include C alkyl groups, organic groups containing a cyclic skeleton, and the like.
- the “ring” constituting the cyclic skeleton includes a monocyclic or polycyclic non-aromatic or aromatic carbocyclic or heterocyclic ring.
- monocyclic or polycyclic non-aromatic carbocycles and rataton rings are particularly preferred.
- the monocyclic non-aromatic carbocycle include a cycloalkane ring having about 3 to 15 members such as a cyclopentane ring and a cyclohexane ring.
- Rataton ring examples include, for example, ⁇ -petit-mouth Rataton ring, 4-oxatricyclo [4. 3. 1. I 3 ' 8 ] unde force, 5-one ring, 4-oxatricyclo Examples include [4. 2. 1. 0 3 ' 7 ] nonane-5-one ring, 4-oxatricyclo [5. 2. 1. 0 2 ' 6 ] decane 5-one ring.
- the ring constituting the cyclic skeleton is an alkyl group such as a methyl group (for example, a C alkyl group).
- haloalkyl groups such as trifluoromethyl groups (eg C haloalkyl groups)
- a halogen atom such as a chlorine atom or a fluorine atom, a hydroxy group that may be protected with a protective group, a hydroxyalkyl group that may be protected with a protective group, a mercapto group that may be protected with a protective group, a protective group May be protected with a carboxyl group, protected with a protecting group, may be protected with an amino group, a protecting group, may be protected with a sulfonic acid group, etc. It may have a substituent.
- the protecting group a protecting group conventionally used in the field of organic synthesis can be used.
- the ring constituting the cyclic skeleton is bonded via a linking group which may be directly bonded to an oxygen atom (an oxygen atom adjacent to R 3Q ) represented by the formula (Ilh). It may be.
- the linking group include linear or branched alkylene groups such as methylene, methylmethylene, dimethylmethylene, ethylene, propylene, and trimethylene groups; a carbonyl group; an oxygen atom (ether bond; O); an oxycarbonyl group ( An ester bond; COO); an aminocarbo group (amide bond; -CONH-); and a group in which a plurality of these are bonded.
- a carboxyl group protected by a protecting group bonded to the adamantane skeleton is deprotected by an acid to generate a free carboxyl group.
- the adamantane skeleton is bonded to the main chain by an acid, and the carboxylic acid moiety is eliminated to generate a free carboxyl group. Furthermore, the monomer units represented by the formulas (lid), (II e), (IIf), (Ilg) and (Ilh) also generate free carboxyl groups by decomposition and elimination of the carboxylic acid ester moiety by acid. Let Therefore, the monomer unit 2 functions as an alkali-soluble unit that makes the resin soluble during alkali development.
- R 12 to R ′′ is a monomer unit that is a hydroxyl group
- R 3 ° includes a rataton ring
- the monomer unit as a group has high hydrophilicity and also has an adhesive function.
- the monomer unit force represented by the formulas (Ilia) to (IIIh) is selected.
- the monomer unit force represented by the formulas (Ilia) to (IIIh) is selected.
- Including one type of monomer unit (repeating unit) hereinafter sometimes referred to as “monomer unit 3”)!
- R a is the same as described above.
- the orientation of the —CO—O group in ⁇ to 3 is not limited.
- R 44 linear, branched, cyclic or bridged cyclic hydrocarbon group includes methyl, ethyl, propyl, isopropyl
- Linear or branched aliphatic hydrocarbon groups having 1 to 20 carbon atoms such as butyl, isobutyl, t-butyl, pentyl, hexyl, octyl, decyl, dodecyl, tetradecyl, octadecyl group (especially alkyl group); Cyclopentyl, cyclohexyl, cyclooctyl, cyclododecyl and other cycloalkyl or cycloalkenyl groups having 3 to 20 carbon atoms; perhydroindene ring, perhydrofluorene ring, perhydronaphthalene ring (decalin ring), perhydroanthracene ring
- hydrocarbon groups are alkyl groups, halogen atoms, hydroxyl groups that may be protected with a protecting group, hydroxy groups that may be protected with protecting groups, hydroxymethyl groups, and protecting groups.
- Protected ! may! /, Carboxyl group (eg, carboxyl group, t-butyloxycarboxyl group, 2-tetrahydrohydroxyloxyl group, 2-tetrahydrovinyl-loxycarbonyl group, 2— Oxeparoxy group having a substituent such as ruponyl group) Good.
- the protecting group a conventional protecting group can be used in the field of organic synthesis.
- the monomer unit represented by the above formula (Ilia) has high hydrophilicity and a group (hydroxyl group, carboxyl group, oxo group) bonded to the adamantane skeleton, and therefore has good adhesion to the substrate. Has the ability to increase.
- formulas (Ilia), (Illb) (in which 1 to ⁇ are all methylene groups, etc.), (IIIc), (Ille) (in which R 44 is a cyclic or bridged cyclic hydrocarbon group), (Illg ) And (Illh) monomer units have an alicyclic carbon skeleton, which contributes to improvements in transparency and etching resistance.
- the monomer unit represented by (which is a carboxyl group) contains a hydrophilic group and has an adhesion imparting function.
- the incorporation of each of the above monomer units into the polymer can balance the various properties required for resist resin depending on the application. Fine adjustment.
- the polymer compound of the present invention adjusts the above-mentioned properties, so that You can ask me.
- the content of the monomer unit 1, with respect to all of monomer units constituting a polymer for example, 10 to 90 mole 0/0, preferably 20 to 70 mol%, more preferably Is about 30 to 50 mol%.
- a monomer unit 2 with respect to all of monomer units constituting a polymer for example, 10 to 90 Monore 0/0, preferably 20-70 Monore 0/0, more preferably 30 to 50 Monore 0/0 about having free.
- the content of the monomer unit 3 in the polymer compound comprising monomer unit 3, relative to the entire monomer units constituting the polymer for example, 0 to 50 mol%, preferably 0 to 40 mol 0/0, more preferably is about 10-30 mol 0/0.
- the polymer compound of the present invention is obtained by the method of Fedors [see Polym. Eng. Sci., 14, 147 (1974)]. It is preferable that the solubility parameter value (“SP value”) is in the range of 19.5 (j / cm 3 ) 1/2 to 24.5 (j / cm 3 ) 1/2 .
- SP value solubility parameter value
- a resist coating film formed by applying a resin composition for photoresist containing a polymer compound having such a solubility parameter to a semiconductor substrate (silicon wafer) has excellent adhesion (adhesion) to the substrate.
- a pattern with high resolution can be formed by alkali development.
- the SP value When the SP value is lower than 19.5 CF / cm 3 ) 1/2 , the adhesion to the substrate is lowered, and the problem that the pattern is not peeled off by development tends to occur. On the other hand, if the SP value is greater than 24.5 CF / cm 3 ) 1/2 , it tends to be difficult to be applied by being repelled by the substrate, and the affinity for an alkali developer is increased. As the solubility contrast of the unexposed area deteriorates, the resolution tends to decrease.
- the weight average molecular weight (Mw) of the polymer compound is, for example, about 5000 to 50000, preferably about 7000 to 20000, and the molecular weight distribution (MwZMn) is, for example, about 1.8 to 3.5.
- Mn represents a number average molecular weight
- Mn and Mw are values in terms of polystyrene.
- Each of the monomer units represented by the above formulas (Ilg), (Illf), (nig) and (mh) has a corresponding ethylenically unsaturated compound as a (co) monomer, and the formula (1) , (IIa) ⁇ (IIf), (ILH), each monomer unit represented by (iii a) ⁇ (m e) are also corresponding (meth) acrylic acid polymer and its esters as (co) monomers It can be formed by attaching to.
- the monomer corresponding to the monomer unit of the formula (I) is represented by the formula (1).
- the monomers represented by formula (1) can be used alone or in combination of two or more. Further, the compound represented by the formula (1) has a stereoisomer, but in the present invention, only one stereoisomer may be used, or a mixture of a plurality of stereoisomers may be used. .
- Typical examples of the monomer corresponding to the monomer unit of the formula (lib) include the following compounds. 1—t—Butoxycarboxyl— 3— (Meth) attayloxy adamantane, 1, 3 Bis (t-butoxy carboxy) one 5— (Meth) tertyloxy adamantane, 1 t Butoxycarbole 3 Hydroxy 5 (meth) Ataloyloxyadamantane, 1— (2—Tetrahydroviroxycarboxyl) 3— (Meth) Atallylooxyadamantane, 1, 3 Bis (2-tetrahydro) Vila-Luxoxycarbol) 1 5— (Meth) acryloyloxydamantane, 1-hydroxy-3- (2-tetrahydroviraniloxyca)
- Typical examples of the monomer corresponding to the monomer unit of the formula (lid) include the following compounds. t—Butyl (meth) acrylate.
- Representative compounds of monomers corresponding to the monomer unit of the formula (Ilia) include the following compounds.
- [0055] [Monomer Unit of Formula (Illb)] As typical examples of the monomer corresponding to the monomer unit of the formula (Illb), there may be mentioned the following compounds. 1— (Meth) Atalyloxy 4-4-Oxatricyclo [4. 3. 1. I 3 ' 8 ] Undecane 5-—, 1— (Meth) Atalyloxy 4, 7 Dioxatricyclo [4. 4. 1. I 3 ' 9 ] Dodecane— 5, 8 Dione, 1— (Meth) Atalyloxy-4, 8 Dioxatricyclo [4. 4. 1. I 3 ' 9 ] Dodecane 5, 7 dione, 1— (meth) ataryloxy-5,7-dioxatricyclo [4. 4. 1. I 3 ' 9 ] dodecane 4,8 dione.
- Typical examples of the monomer forming the monomer unit of the formula (Illd) include the following compounds.
- Typical examples of the monomer forming the monomer unit of the formula (Ille) include the following compounds.
- the monomer forming the monomer unit of the formula (Illf) includes maleic anhydride.
- pen Tadekan one 10 E down one 5- one, 3- O hexa penta cyclo [6. 5. 1. I 9 '12. O 2' 6 . 0 8 '13] pentadecane one 10 E down one 4- one, 5-O hexa penta cyclo [6.6.1 1.1 10,13. 0 2, 7. 0 9' hexadecane one 11 E emission one 6-one to "], 4-O hexa penta cyclo [6. 6. 1. I 10 '13 . 0 2' 7. 0 9 ' hexadecane one 11- E emission one to 14] 5—On.
- the polymerization of the monomer mixture is a conventional method used for producing an acrylic polymer or the like such as solution polymerization, bulk polymerization, suspension polymerization, bulk suspension polymerization, and emulsion polymerization.
- solution polymerization is particularly preferred.
- the drop polymerization is preferable among the solution polymerizations. Specifically, for example, (i) a monomer solution previously dissolved in an organic solvent and a polymerization initiator solution dissolved in an organic solvent are prepared in an organic solvent maintained at a constant temperature.
- a known solvent can be used as the polymerization solvent.
- ethers chain ethers such as glycol ethers such as jetyl ether and propylene glycol monomethyl ether, cyclic ethers such as tetrahydrofuran and dioxane), esters (acetic acid, etc.) Methyl, ethyl acetate, butyl acetate, ethyl lactate, propylene glycol monomethyl ether acetates, etc.), ketones (acetone, methyl ethyl ketone)
- Methyl isobutyl ketone, cyclohexanone, etc. Methyl isobutyl ketone, cyclohexanone, etc.), amides (N, N-dimethylacetamide, N, N-dimethylformamide, etc.), sulfoxides (dimethyl sulfoxide, etc.), alcohols (methanol, ethanol, propanol, etc.), carbonized Examples thereof include hydrogen (aromatic hydrocarbons such as benzene, toluene and xylene, aliphatic hydrocarbons such as hexane, and alicyclic hydrocarbons such as cyclohexane), and mixed solvents thereof.
- a known polymerization initiator can be used as the polymerization initiator.
- the polymerization temperature can be appropriately selected within a range of, for example, about 30 to 150 ° C.
- the polymer obtained by polymerization can be purified by precipitation or reprecipitation.
- the precipitation or reprecipitation solvent may be either an organic solvent or water, or may be a mixed solvent.
- organic solvents used as a precipitation or reprecipitation solvent include hydrocarbons (aliphatic hydrocarbons such as pentane, hexane, heptane, and octane; alicyclic hydrocarbons such as cyclohexane and methylcyclohexane; benzene, toluene.
- Aromatic hydrocarbons such as xylene), halogeno hydrocarbons (halogenated aliphatic hydrocarbons such as methylene chloride, black mouth form, and tetrasalt carbon); halogenated aromatic carbons such as black mouth benzene and dichlorobenzene Hydrogen), nitro compounds (nitromethane, nitroethane, etc.), nitrile (acetonitrile, benzo-tolyl, etc.), ethers (chain ethers such as jetyl ether, diisopropyl ether, dimethoxyethane); cyclic ethers such as tetrahydrofuran, dioxane, etc.
- Ketones acetone, methylethyl
- Diisoptyl ketone, etc. ester
- ethyl acetate, butinole acetate, etc. carbonate
- dimethylolene carbonate jetinole carbonate
- ethylene carbonate propylene carbonate
- propylene carbonate etc.
- anolenole methanol, ethanol, propanol, isopropyl
- Alcohol butanol, etc.
- carboxylic acids acetic acid, etc.
- a solvent containing at least hydrocarbon particularly aliphatic hydrocarbon such as hexane
- the resin composition for photoresists of the present invention contains the polymer compound of the present invention and a photoacid generator.
- Examples of the photoacid generator include conventional or known compounds that efficiently generate an acid upon exposure, such as diazo-um salt, iodonium salt (for example, diphenyl-hexafluorophosphate, etc.), sulfo-sulfur.
- Salt eg, triphenylsulfo-hexafluoroan thiomonate, triphenol-norethnorephonium hexafnoreo-oral phosphate, triphenyl-noresnoreform-ummethanesulfonate, etc.
- sulfonate esters eg, 1 phenol- 1 1- (4-methylphenyl) sulfo-loxy- 1-benzoylmethane, 1,2,3 trisulfo-loxymethylbenzene, 1,3-dinitro 2- (4 phenylsulfonyloxymethyl) benzene, 1 phenyl 1 -(4-Methylphenolsulfo-loxymethyl) 1 Hydroxy— 1-Benzylmethane etc.], Oxathia Lumpur derivatives, s Toriajin induction body, disulfone derivative (Jifuwe - such Rujisuruhon), imide compounds, Okishimusuru
- the amount of the photoacid generator used 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. It can be selected from a range of about 0.1 to 30 parts by weight, preferably 1 to 25 parts by weight, and more preferably about 2 to 20 parts by weight with respect to 100 parts by weight.
- the resin composition for photoresist comprises an alkali-soluble component such as an alkali-soluble resin (for example, novolac resin, phenol resin, imide resin, carboxyl group-containing resin), a colorant (for example, dyes), organic solvents (for example, hydrocarbons, halogenated hydrocarbons, alcohols, esters, amides, ketones, ethers, cellosolves, carbito , Glycol ether esters, a mixed solvent thereof and the like.
- an alkali-soluble component such as an alkali-soluble resin (for example, novolac resin, phenol resin, imide resin, carboxyl group-containing resin), a colorant (for example, dyes), organic solvents (for example, hydrocarbons, halogenated hydrocarbons, alcohols, esters, amides, ketones, ethers, cellosolves, carbito , Glycol ether esters, a mixed solvent thereof and the like.
- the resin composition for photoresist is applied onto a substrate or a substrate, dried, and then exposed to light (or further after exposure) on a coating film (resist film) through a predetermined mask.
- a coating film resist film
- Examples of the base material or the substrate include silicon wello, metal, plastic, glass, and ceramic.
- the resin composition for photoresist can be applied 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 20 ⁇ m, preferably about 0.05 to 2 ⁇ m.
- Light beams of various wavelengths such as ultraviolet rays and X-rays can be used for exposure, and g-line, i-line, and excimer lasers (eg, XeCl, KrF, KrCl, ArF) are usually used for semiconductor resists. , ArCl, F, Kr, KrAr, Ar, etc.).
- the exposure energy is 0.1
- ⁇ 1000miZcm is about 2.
- an acid Upon irradiation with light, an acid is generated from the photoacid generator, and this acid causes a protective group (elimination such as a carboxyl group of a monomer unit (alkali-soluble unit) having an acid-eliminable group of the polymer compound, for example.
- the functional group is rapidly eliminated, and a carboxyl group and the like that contribute to the solubility is generated. Therefore, a predetermined pattern can be accurately formed by development with water or an alkali developer.
- nonane-3-one 7.30 g, 1-hydroxy-1-methacryloyloxydaman Tan 3.60 g, 1- (1-Metatalyl loyoxy 1-methylethyl) adamantane 4.05 g, dimethyl 2, 2'-azobis (2-methylpropionate) (Initiator: Wako Pure Chemical Industries, trade name " V—601 ”) 0.60 g, PG MEA 34.2 g, and PGME 34.2 g mixed solution were added dropwise over 4 hours. After dropping, the mixture was aged for 2 hours.
- the obtained reaction solution was dropped into a mixed solution of 733 g of heptane and 81 g of ethyl acetate, and the precipitated polymer was recovered with Nutsche.
- the obtained polymer was dried under reduced pressure to obtain 12.8 g of the desired rosin.
- the weight average molecular weight (Mw) of the obtained polymer was 9500, and the molecular weight distribution (Mw / Mn) was 1.82 (GPC measurement value, polystyrene conversion).
- Nonane-3-one 7.52 g, 1-hydroxy-1-3-methacryloyloxydamantane 3.76 g, 2-methacryloyloxy-2-methyladadamantane 3.73 g, Dimethyl 2, 2, —azobis (2-methylpropionate) (Initiator: Wako Pure Chemical Industries, trade name “V-601”) 0.6 g, PGMEA 34.2 g, and PGME 34.2 g mixed solution over 4 hours And dripped. After dripping, it was aged for 2 hours. The obtained reaction solution was dropped into a mixed solution of 733 g of heptane and 81 g of ethyl acetate, and the precipitated polymer was recovered with Nutsche.
- the obtained polymer was dried under reduced pressure to obtain 11.7 g of a desired resin.
- the weight average molecular weight (Mw) of the obtained polymer was 9800, and the molecular weight distribution (MwZMn) was 1.79 (GPC measurement value, polystyrene conversion).
- the obtained polymer was dried under reduced pressure to obtain the desired resin 13.Og.
- the weight average molecular weight (Mw) of the obtained polymer was 9400, and the molecular weight distribution (MwZMn) was 1.79 (GPC measurement value, polystyrene conversion).
- Nonane 1-one 7.29 g, 1-hydroxy 3-methacryloyloxydamantane 3.87 g, 2-methacryloyloxy 2-methyladamantane 3.84 g, dimethyl 2,2'-azobis ( 2-Methylpropionate) (Initiator: Wako Pure Chemical Industries, trade name “V-601”) 0.60 g, PGMEA 34.2 g, and PG ME 34.2 g mixed solution were added dropwise over 4 hours. After dropping, the mixture was aged for 2 hours. The obtained reaction solution was dropped into a mixed solution of 733 g of heptane and 8 lg of ethyl acetate, and the precipitated polymer was recovered with Nutsche.
- the resulting polymer was dried under reduced pressure to obtain 11.2 g of the desired rosin.
- the weight average molecular weight (Mw) of the obtained polymer was 9300, and the molecular weight distribution (MwZMn) was 1.80 (GPC measurement value, polystyrene conversion).
- the polymer compound of the present invention exhibits high solubility in a resist solvent as well as high substrate adhesion and etching resistance. Therefore, according to the resin composition for photoresist and the method for producing a semiconductor of the present invention, a fine pattern can be formed with high accuracy.
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials For Photolithography (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/556,186 US7407733B2 (en) | 2004-07-26 | 2005-05-25 | Polymeric compound containing a repeated unit having a 2-oxatricyclo [4.2.1.04,8] nonan-3-one ring and photoresist resin composition |
EP05743691A EP1681307A4 (en) | 2004-07-26 | 2005-05-25 | POLYMERIC COMPOUND CONTAINING A REPEATED PATTERN HAVING A 2-OXATRICYCLO [4.2.1.04,8] NONAN-3-ONE RING, AND RESIN PHOTORESISTANT COMPOSITION |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-217768 | 2004-07-26 | ||
JP2004217768A JP4804730B2 (ja) | 2004-07-26 | 2004-07-26 | 2−オキサトリシクロ[4.2.1.04,8]ノナン−3−オン環を有する繰り返し単位を含む高分子化合物、及びフォトレジスト用樹脂組成物 |
Publications (1)
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WO2006011287A1 true WO2006011287A1 (ja) | 2006-02-02 |
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PCT/JP2005/009522 WO2006011287A1 (ja) | 2004-07-26 | 2005-05-25 | 2-オキサトリシクロ[4.2.1.04,8]ノナン-3-オン環を有する繰り返し単位を含む高分子化合物、及びフォトレジスト用樹脂組成物 |
Country Status (5)
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US (1) | US7407733B2 (ja) |
EP (1) | EP1681307A4 (ja) |
JP (1) | JP4804730B2 (ja) |
KR (1) | KR20070056073A (ja) |
WO (1) | WO2006011287A1 (ja) |
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JP4714488B2 (ja) * | 2004-08-26 | 2011-06-29 | 富士フイルム株式会社 | ポジ型レジスト組成物及びそれを用いたパターン形成方法 |
JP5285214B2 (ja) * | 2006-03-30 | 2013-09-11 | 三菱レイヨン株式会社 | 粒状架橋重合体 |
CN114051507A (zh) * | 2019-07-01 | 2022-02-15 | 株式会社大赛璐 | 光致抗蚀剂用树脂、光致抗蚀剂用树脂的制造方法、光致抗蚀剂用树脂组合物以及图案形成方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002169289A (ja) * | 2000-12-04 | 2002-06-14 | Daicel Chem Ind Ltd | フォトレジスト用高分子及びフォトレジスト用樹脂組成物 |
JP2002212174A (ja) * | 2001-01-17 | 2002-07-31 | Daicel Chem Ind Ltd | 2−オキサトリシクロ[4.2.1.04,8]ノナン−3−オン誘導体及びその製造法 |
JP2003147023A (ja) * | 2001-08-31 | 2003-05-21 | Shin Etsu Chem Co Ltd | 高分子化合物、レジスト材料、及びパターン形成方法 |
JP2004323704A (ja) * | 2003-04-25 | 2004-11-18 | Daicel Chem Ind Ltd | フォトレジスト用重合体合成用(メタ)アクリル酸エステルとその製造法 |
JP2005097533A (ja) * | 2003-09-03 | 2005-04-14 | Shin Etsu Chem Co Ltd | 高分子化合物、レジスト材料及びパターン形成方法 |
Family Cites Families (6)
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JP3042618B2 (ja) | 1998-07-03 | 2000-05-15 | 日本電気株式会社 | ラクトン構造を有する(メタ)アクリレート誘導体、重合体、フォトレジスト組成物、及びパターン形成方法 |
JP3763693B2 (ja) | 1998-08-10 | 2006-04-05 | 株式会社東芝 | 感光性組成物及びパターン形成方法 |
US6844133B2 (en) * | 2001-08-31 | 2005-01-18 | Shin-Etsu Chemical Co., Ltd. | Polymer, resist composition and patterning process |
JP2003307838A (ja) * | 2002-04-15 | 2003-10-31 | Fuji Photo Film Co Ltd | ポジ型感光性組成物 |
JP4188058B2 (ja) * | 2002-11-05 | 2008-11-26 | 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及びフォトレジスト用樹脂組成物 |
JP4448782B2 (ja) * | 2004-03-18 | 2010-04-14 | 富士フイルム株式会社 | 液浸露光用ポジ型レジスト組成物及びそれを用いたパターン形成方法 |
-
2004
- 2004-07-26 JP JP2004217768A patent/JP4804730B2/ja not_active Expired - Fee Related
-
2005
- 2005-05-25 EP EP05743691A patent/EP1681307A4/en not_active Withdrawn
- 2005-05-25 KR KR1020077004337A patent/KR20070056073A/ko not_active Application Discontinuation
- 2005-05-25 US US10/556,186 patent/US7407733B2/en not_active Expired - Fee Related
- 2005-05-25 WO PCT/JP2005/009522 patent/WO2006011287A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002169289A (ja) * | 2000-12-04 | 2002-06-14 | Daicel Chem Ind Ltd | フォトレジスト用高分子及びフォトレジスト用樹脂組成物 |
JP2002212174A (ja) * | 2001-01-17 | 2002-07-31 | Daicel Chem Ind Ltd | 2−オキサトリシクロ[4.2.1.04,8]ノナン−3−オン誘導体及びその製造法 |
JP2003147023A (ja) * | 2001-08-31 | 2003-05-21 | Shin Etsu Chem Co Ltd | 高分子化合物、レジスト材料、及びパターン形成方法 |
JP2004323704A (ja) * | 2003-04-25 | 2004-11-18 | Daicel Chem Ind Ltd | フォトレジスト用重合体合成用(メタ)アクリル酸エステルとその製造法 |
JP2005097533A (ja) * | 2003-09-03 | 2005-04-14 | Shin Etsu Chem Co Ltd | 高分子化合物、レジスト材料及びパターン形成方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1681307A4 * |
Also Published As
Publication number | Publication date |
---|---|
US7407733B2 (en) | 2008-08-05 |
JP4804730B2 (ja) | 2011-11-02 |
KR20070056073A (ko) | 2007-05-31 |
US20060281022A1 (en) | 2006-12-14 |
JP2006036894A (ja) | 2006-02-09 |
EP1681307A1 (en) | 2006-07-19 |
EP1681307A4 (en) | 2010-02-17 |
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