WO2011040324A1 - 半導体素子基板 - Google Patents
半導体素子基板 Download PDFInfo
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- WO2011040324A1 WO2011040324A1 PCT/JP2010/066529 JP2010066529W WO2011040324A1 WO 2011040324 A1 WO2011040324 A1 WO 2011040324A1 JP 2010066529 W JP2010066529 W JP 2010066529W WO 2011040324 A1 WO2011040324 A1 WO 2011040324A1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0045—Photosensitive materials with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
- C08G61/04—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
- C08G61/06—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds
- C08G61/08—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
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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
- G03F7/022—Quinonediazides
- G03F7/023—Macromolecular quinonediazides; Macromolecular additives, e.g. binders
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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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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/33—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain
- C08G2261/332—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain containing only carbon atoms
- C08G2261/3324—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain containing only carbon atoms derived from norbornene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/40—Polymerisation processes
- C08G2261/41—Organometallic coupling reactions
- C08G2261/418—Ring opening metathesis polymerisation [ROMP]
Definitions
- the present invention relates to a semiconductor element substrate. More specifically, the present invention has high reliability, excellent electrical characteristics (for example, low dielectric constant characteristics, low leakage current characteristics, high breakdown voltage characteristics), and high transparency.
- the present invention relates to a semiconductor element substrate including a resin film excellent in pattern formability by development.
- Various display elements such as organic EL elements and liquid crystal display elements, integrated circuit elements, solid-state imaging elements, color filters, black matrices, and other electronic parts are provided with protective films, element surfaces and wiring to prevent their deterioration and damage.
- Various resin films are provided as a planarization film for planarization, an electrical insulation film for maintaining electrical insulation, and the like.
- the organic EL element is provided with a resin film as a pixel separation film in order to separate the light-emitting body portion.
- the organic EL element is layered.
- a resin film as an interlayer insulating film is provided to insulate between the arranged wirings.
- thermosetting resin materials such as epoxy resins have been widely used as resin materials for forming these resin films.
- thermosetting resin materials such as epoxy resins
- the development of new radiation-sensitive resin materials that are capable of fine patterning on these resin materials and have excellent electrical properties such as low dielectric properties is required. ing.
- Patent Document 1 discloses an alkali-soluble alicyclic olefin resin to which a carboxyl group obtained by ring-opening polymerization of an ester group-containing norbornene-based monomer, hydrogenation, and hydrolysis of an ester group is bonded.
- a radiation sensitive resin composition containing an acid generator and a crosslinking agent is disclosed.
- the protective film obtained by using the resin composition described in Patent Document 1 has good electrical characteristics, it has a low pattern forming property when being developed, so that fine patterning cannot be realized. There were problems and inferior processing accuracy.
- An object of the present invention is to provide a semiconductor element substrate having a resin film having high reliability, good various electrical characteristics, high transparency, and excellent pattern formation by development.
- a composition for forming a resin film used in contact with a semiconductor element surface mounted on a semiconductor element substrate or a semiconductor layer included in the semiconductor element A polymer having a monomer unit having a structure in which a cyclic imide skeleton having a substituent having a specific structure on a nitrogen atom and a cyclic olefin share one carbon-carbon bond, a crosslinking agent, and a radiation sensitive
- a radiation-sensitive resin composition containing a compound the reliability and various electrical characteristics of the semiconductor element substrate can be improved, and the resulting resin film has high transparency and development.
- the present inventors have found that it is possible to make the pattern forming property excellent by the above, and have completed the present invention.
- the polymer (A) comprising the monomer unit (a1) represented by the following general formula (1), the crosslinking agent (B) and the radiation sensitive compound (C) are contained.
- a semiconductor element substrate formed by contact is provided.
- R 1 represents a branched alkyl group having 5 to 16 carbon atoms.
- the content of the monomer unit (a1) represented by the general formula (1) in the polymer (A) is 10 to 90 mol%.
- the polymer (A) further includes a monomer unit (a2) copolymerizable with the monomer represented by the general formula (1).
- the copolymerizable monomer unit (a2) is a cyclic olefin monomer unit having a protic polar group, and more preferably a carboxy group-containing cyclic olefin monomer unit. .
- the polymer (A) is a polymer obtained by ring-opening copolymerization of the monomer represented by the general formula (1) and the cyclic olefin monomer having the protic polar group. Or a hydrogenated product of the polymer.
- the crosslinking agent (B) is a combination of an amino group-containing compound and an epoxy group-containing compound.
- the epoxy group-containing compound is preferably an epoxy group-containing compound having an alicyclic structure.
- the semiconductor element substrate is an active matrix substrate or an organic EL element substrate.
- the composition for forming a resin film used in contact with a semiconductor element surface mounted on a semiconductor element substrate or a semiconductor layer included in the semiconductor element is represented by the general formula (1).
- a radiation sensitive resin composition comprising a polymer (A) comprising a monomer unit (a1), a crosslinking agent (B) and a radiation sensitive compound (C)
- a semiconductor element substrate Is highly reliable, has excellent electrical characteristics such as low dielectric constant characteristics, low leakage current characteristics, and high breakdown voltage characteristics, and the resin film contained in the semiconductor element substrate has high transparency. Therefore, it is possible to provide a semiconductor element substrate that is excellent in pattern formability by development and, as a result, has high reliability, excellent electrical characteristics, and high performance.
- the semiconductor element substrate of the present invention contains a polymer (A) comprising a monomer unit (a1) represented by the following general formula (1), a crosslinking agent (B) and a radiation sensitive compound (C).
- a resin film made of a radiation sensitive resin composition, and the resin film is formed in contact with a semiconductor element surface mounted on the semiconductor element substrate or a semiconductor layer included in the semiconductor element. It is characterized by.
- the radiation-sensitive resin composition used in the present invention will be described.
- the radiation sensitive resin composition used in the present invention is a resin composition for forming a resin film formed in contact with a semiconductor element surface mounted on a semiconductor element substrate of the present invention or a semiconductor layer included in the semiconductor element.
- a polymer (A) comprising a monomer unit (a1) represented by the following general formula (1), a crosslinking agent (B) and a radiation-sensitive compound (C).
- the polymer (A) used in the present invention comprises a monomer unit (a1) represented by the following general formula (1).
- R 1 represents a branched alkyl group having 5 to 16 carbon atoms.
- R 1 is a branched alkyl group having 5 to 16 carbon atoms, such as 1-methylbutyl group, 2-methylbutyl group, 1-methylpentyl group, 1-ethylbutyl group, 2-methyl. Examples include hexyl group, 2-ethylhexyl group, 4-methylheptyl group, 1-methylnonyl group, 1-methyltridecyl group, 1-methyltetradecyl group and the like. Among these, a branched alkyl group having 6 to 14 carbon atoms is preferable, and a branched alkyl group having 7 to 10 carbon atoms is more preferable because of excellent heat resistance and solubility in a polar solvent. When the carbon number is 4 or less, the solubility in a polar solvent is poor, when the carbon number is 17 or more, the heat resistance is poor, and the patterned resin film is melted by heat and the pattern disappears. There is.
- the monomer represented by the general formula (1) include N- (1-methylbutyl) -bicyclo [2.2.1] hept-5-ene-2,3-dicarboximide, N -(2-Methylbutyl) -bicyclo [2.2.1] hept-5-ene-2,3-dicarboximide, N- (1-methylpentyl) -bicyclo [2.2.1] hept-5 Ene-2,3-dicarboximide, N- (2-methylpentyl) -bicyclo [2.2.1] hept-5-ene-2,3-dicarboximide, N- (1-ethylbutyl) -bicyclo [2.2.1] Hept-5-ene-2,3-dicarboximide, N- (2-ethylbutyl) -bicyclo [2.2.1] hept-5-ene-2,3-dicarboximide , N- (1-methylhexyl) -bicyclo [2.2.
- the method for producing the monomer represented by the general formula (1) is not particularly limited.
- the monomer is obtained by an amidation reaction between a corresponding amine and 5-norbornene-2,3-dicarboxylic acid anhydride. be able to.
- the obtained monomer can be efficiently isolated by separating and purifying the reaction solution of the amidation reaction by a known method.
- the content ratio of the monomer unit (a1) represented by the general formula (1) in the polymer (A) is preferably 10 to 90 mol% with respect to the total monomer units. If the content ratio of the monomer unit (a1) represented by the general formula (1) is too small, the solubility of the polymer (A) in the polar solvent may be insufficient. There is a possibility that the radiation sensitivity of the radiation sensitive resin composition is lowered or a dissolution residue is generated during development.
- the more preferable range of the content rate of the monomer unit (a1) represented by the general formula (1) varies depending on the type of the resin film constituted by the radiation-sensitive resin composition used in the present invention. Specifically, when the resin film is a resin film that is patterned by photolithography, such as a protective film of an active matrix substrate or a sealing film of an organic EL element substrate, the above general formula ( The content of the monomer unit (a1) represented by 1) is more preferably 30 to 60 mol%, and particularly preferably 40 to 50 mol%.
- the resin film is a resin film that is not patterned by photolithography, such as a gate insulating film of an active matrix substrate or a pixel isolation film of an organic EL element substrate, the above general formula (1)
- the content of the monomer unit (a1) is more preferably 20 to 80 mol%, and particularly preferably 30 to 70 mol%.
- the polymer (A) preferably further contains a monomer unit (a2) copolymerizable with the monomer represented by the general formula (1).
- Examples of the copolymerizable monomer include a cyclic olefin monomer having a protic polar group (a2-1) and polar groups other than the protic polar group excluding the monomer represented by the general formula (1).
- the monomer (a2-4) may have a protic polar group or other polar group, or may not have a polar group at all.
- the protic polar group means a group containing an atom in which a hydrogen atom is directly bonded to an atom belonging to Group 15 or Group 16 of the Periodic Table.
- the atom belonging to group 15 or 16 of the periodic table is preferably an atom belonging to the first or second period of group 15 or 16 of the periodic table, more preferably an oxygen atom, nitrogen atom or sulfur An atom, particularly preferably an oxygen atom.
- protic polar groups include polar groups having oxygen atoms such as hydroxyl groups, carboxy groups (hydroxycarbonyl groups), sulfonic acid groups, phosphoric acid groups; primary amino groups, secondary amino groups A polar group having a nitrogen atom such as a primary amide group or a secondary amide group (imide group); a polar group having a sulfur atom such as a thiol group; Among these, those having an oxygen atom are preferable, and a carboxy group is more preferable.
- the number of protic polar groups bonded to the cyclic olefin resin having a protic polar group is not particularly limited, and different types of protic polar groups may be included.
- cyclic olefin monomer (a2-1) having a protic polar group examples include 5-hydroxycarbonylbicyclo [2.2.1] hept-2-ene, 5-methyl-5-hydroxycarbonylbicyclo [ 2.2.1] Hept-2-ene, 5-carboxymethyl-5-hydroxycarbonylbicyclo [2.2.1] hept-2-ene, 5,6-dihydroxycarbonylbicyclo [2.2.1] hept -2-ene, 8-hydroxycarbonyltetracyclo [4.4.0.1 2,5 . 1 7,10 ] dodec-3-ene, 9-hydroxycarbonyltetracyclo [6.2.1.1 3,6 .
- Examples of the cyclic olefin monomer (a2-2) having a polar group other than the protic polar group excluding the monomer represented by the general formula (1) include an ester group, an N-substituted imide group, a cyano group, The cyclic olefin which has a halogen atom is mentioned.
- Examples of the cyclic olefin having an ester group include 5-acetoxybicyclo [2.2.1] hept-2-ene, 5-methoxycarbonylbicyclo [2.2.1] hept-2-ene, 5-methyl- 5-methoxycarbonylbicyclo [2.2.1] hept-2-ene, 9-acetoxytetracyclo [6.2.1.1 3,6 . 0 2,7 ] dodec-4-ene, 9-methoxycarbonyltetracyclo [6.2.1.1 3,6 . 0 2,7 ] dodec-4-ene, 9-ethoxycarbonyltetracyclo [6.2.1.1 3,6 .
- dodec-4-ene 9-methyl-9-n-propoxycarbonyltetracyclo [6.2.1.1 3,6 . 0 2,7 ] dodec-4-ene, 9-methyl-9-isopropoxycarbonyltetracyclo [6.2.1.1 3,6 . 0 2,7 ] dodec-4-ene, 9-methyl-9-n-butoxycarbonyltetracyclo [6.2.1.1 3,6 . 0 2,7 ] dodec-4-ene, 9- (2,2,2-trifluoroethoxycarbonyl) tetracyclo [6.2.1.1 3,6 .
- Examples of the cyclic olefin having an N-substituted imide group include N-phenylbicyclo [2.2.1] hept-5-ene-2,3-dicarboximide, N- (endo-bicyclo [2.2. 1) hept-5-ene-2,3-diyldicarbonyl) methyl aspartate and the like.
- Examples of cyclic olefins having a cyano group include 9-cyanotetracyclo [6.2.1.1 3,6 . 0 2,7 ] dodec-4-ene, 9-methyl-9-cyanotetracyclo [6.2.1.1 3,6 .
- cyclic olefin having a halogen atom examples include 9-chlorotetracyclo [6.2.1.1 3,6 . 0 2,7 ] dodec-4-ene, 9-methyl-9-chlorotetracyclo [6.2.1.1 3,6 . 0 2,7 ] dodec-4-ene and the like.
- monomers (a2-2) may be used alone or in combination of two or more.
- cyclic olefin monomer (a2-3) having no polar group examples include bicyclo [2.2.1] hept-2-ene (also referred to as “norbornene”), 5-ethyl-bicyclo [2 2.1] hept-2-ene, 5-butyl-bicyclo [2.2.1] hept-2-ene, 5-ethylidene-bicyclo [2.2.1] hept-2-ene, 5-methylidene -Bicyclo [2.2.1] hept-2-ene, 5-vinyl-bicyclo [2.2.1] hept-2-ene, tricyclo [5.2.1.0 2,6 ] deca-3, 8-diene (common name: dicyclopentadiene), tetracyclo [10.2.1.0 2,11.
- dodec-4-ene 9-vinyl-tetracyclo [6.2.1.1 3,6 . 0 2,7 ] dodec-4-ene, 9-propenyl-tetracyclo [6.2.1.1 3,6 . 0 2,7 ] dodec-4-ene, pentacyclo [9.2.1.1 3,9 . 0 2,10] pentadeca-5,12-diene, cyclopentene, cyclopentadiene, 9-phenyl - tetracyclo [6.2.1.1 3, 6. 0 2,7] dodeca-4-ene, tetracyclo [9.2.1.0 2,10.
- the monomer (a2-4) other than the cyclic olefin include, for example, ethylene; propylene, 1-butene, 1-pentene, 1-hexene, as a monomer that can be used in addition polymerization.
- the polymer (A) can have a protic polar group, and thereby can be excellent in heat resistance and adhesion. More preferred is a cyclic olefin monomer (a2-1) having a protic polar group, and particularly preferred is a carboxy group-containing cyclic olefin.
- the content of the copolymerizable monomer unit (a2) in the polymer (A) is preferably 10 to 90 mol% with respect to the total monomer units.
- the content ratio of the copolymerizable monomer unit (a2) is too small, the radiation sensitivity of the radiation sensitive resin composition may be reduced, or a dissolution residue may be generated during development. There exists a possibility that the solubility to the polar solvent of a polymer (A) may become inadequate.
- the more preferable range of the content ratio of the copolymerizable monomer unit (a2) varies depending on the type of the resin film constituted by the radiation-sensitive resin composition used in the present invention. Specifically, when the resin film is a resin film that is patterned by photolithography, such as a protective film of an active matrix substrate or a sealing film of an organic EL element substrate, copolymerization is possible.
- the content of the monomer unit (a2) is more preferably 40 to 70 mol%, and particularly preferably 50 to 60 mol%.
- the resin film is a resin film that is not patterned by photolithography, such as a gate insulating film of an active matrix substrate or a pixel isolation film of an organic EL element substrate, a copolymerizable single quantity
- the content of the body unit (a2) is more preferably 20 to 80 mol%, and particularly preferably 30 to 70 mol%.
- a proton polar group may be introduced into the polymer (A) by introducing a proton polar group into a polymer having no proton polar group using a known modifier.
- a polymer having no protic polar group can be obtained by polymerizing the above-mentioned monomers (a2-2) to (a2-4) in any combination.
- a compound having a protic polar group and a reactive carbon-carbon unsaturated bond in one molecule is usually used.
- Specific examples of such compounds include acrylic acid, methacrylic acid, angelic acid, tiglic acid, oleic acid, elaidic acid, erucic acid, brassic acid, maleic acid, fumaric acid, citraconic acid, mesaconic acid, itaconic acid, atropaic acid.
- Unsaturated carboxylic acids such as acid and cinnamic acid; allyl alcohol, methyl vinyl methanol, crotyl alcohol, methallyl alcohol, 1-phenylethen-1-ol, 2-propen-1-ol, 3-butene-1- All, 3-buten-2-ol, 3-methyl-3-buten-1-ol, 3-methyl-2-buten-1-ol, 2-methyl-3-buten-2-ol, 2-methyl- Unsatisfactory such as 3-buten-1-ol, 4-penten-1-ol, 4-methyl-4-penten-1-ol, 2-hexen-1-ol Alcohol; and the like.
- the modification reaction of the polymer using these modifiers may be performed according to a conventional method, and is usually performed in the presence of a radical generator.
- the weight average molecular weight of the polymer (A) used in the present invention can be arbitrarily selected depending on the production purpose of the polymer, but is usually 1,000 to 1,000,000, preferably 1,500 to 500, 000, more preferably 2,000 to 50,000.
- the weight average molecular weight (Mw) of a polymer (A) is a value calculated
- the polymer (A) of the present invention is obtained by ring-opening polymerization of at least one of the monomers represented by the general formula (1) and a copolymerizable monomer used as necessary.
- the ring-opening polymer is obtained by opening at least one of the monomers represented by the general formula (1) and a copolymerizable monomer used as necessary in the presence of a metathesis reaction catalyst. It can be produced by metathesis polymerization.
- the metathesis reaction catalyst may be any catalyst as long as it is a group 3 to 11 transition metal compound in the periodic table and can perform ring-opening metathesis polymerization of the monomer represented by the general formula (1).
- a metathesis reaction catalyst those described in Olefin Metathesis and Metathesis Polymerization (KJ Ivinand JC Mol, Academic Press, San Diego 1997) can be used.
- Examples of the metathesis reaction catalyst include a group 3-11 transition metal-carbene complex catalyst of the periodic table.
- Examples of the periodic table Group 3 to 11 transition metal-carbene complex catalyst include a tungsten alkylidene complex catalyst, a molybdenum alkylidene complex catalyst, a rhenium alkylidene complex catalyst, and a ruthenium carbene complex catalyst. Among these, use of a ruthenium carbene complex catalyst is preferable.
- tungsten alkylidene complex catalysts W (N-2,6-Pr i 2 C 6 H 3) (CHBu t) (OBu t) 2, W (N-2,6-Pr i 2 C 6 H 3) (CHBu t) (OCMe 2 CF 3) 2, W (N-2,6-Pr i 2 C 6 H 3) (CHBu t) (OCMe (CF 3) 2) 2, W (N-2, 6-Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OBu t) 2, W (N-2,6-Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OCMe 2 CF 3) 2, W (N-2,6-Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OCMe (CF 3) 2) 2 and the like.
- molybdenum alkylidene complex catalyst Mo (N-2,6-Pr i 2 C 6 H 3) (CHBu t) (OBu t) 2, Mo (N-2,6-Pr i 2 C 6 H 3) (CHBu t) (OCMe 2 CF 3) 2, Mo (N-2,6-Pr i 2 C 6 H 3) (CHBu t) (OCMe (CF 3) 2) 2, Mo (N-2, 6-Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OBu t) 2, Mo (N-2,6-Pr i 2 C 6 H 3) (CHCMe2Ph) (OCMe 2 CF 3) 2, Mo ( N-2,6-Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OCMe (CF 3) 2) 2, Mo (N-2,6-Pr i 2 C 6 H 3) (CHCMe 2 Ph) (OCMe (CF 3) 2) 2, Mo (N-2,6-Pr i 2 C
- rhenium alkylidene complex catalyst Re (CBu t) (CHBu t) (O-2,6-Pr i 2 C 6 H 3) 2, Re (CBu t) (CHBu t) (O-2- Bu t C 6 H 4) 2 , Re (CBu t) (CHBu t) (OCMe 2 CF 3) 2, Re (CBu t) (CHBu t) (OCMe (CF 3) 2) 2, Re (CBu t) (CHBu t ) (O-2,6-Me 2 C 6 H 3 ) 2 and the like.
- ruthenium carbene complex catalyst examples include compounds represented by the following general formula (2) or general formula (3).
- ⁇ CR 3 R 4 and ⁇ C ⁇ CR 3 R 4 are carbene compounds containing a carbene carbon as a reaction center.
- R 3 and R 4 each independently represent a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms which may contain a halogen atom, oxygen atom, nitrogen atom, sulfur atom, phosphorus atom or silicon atom,
- the carbene compound may or may not contain a heteroatom.
- L 1 represents a heteroatom-containing carbene compound
- L 2 represents a heteroatom-containing carbene compound or any neutral electron-donating compound.
- the heteroatom-containing carbene compound refers to a compound containing a carbene carbon and a heteroatom.
- L 1 and L 2 or L 1 is a heteroatom-containing carbene compound, and a ruthenium metal atom is directly bonded to the carbene carbon contained therein, and a group containing a heteroatom is bonded.
- Specific examples of heteroatoms include N, O, P, S, As, and Se atoms. Among these, from the viewpoint of obtaining a stable carbene compound, N, O, P, S atoms and the like are preferable, and N atom is particularly preferable.
- heteroatom-containing carbene compound examples include 1,3-diisopropyl-4-imidazoline-2-ylidene, 1,3-dicyclohexyl-4-imidazoline-2-ylidene, and 1,3-di (methylphenyl) -4.
- L 2 When L 2 is a neutral electron donating compound, L 2 may be any ligand as long as it has a neutral charge when separated from the central metal. Specific examples thereof include carbonyls, amines, pyridines, ethers, nitriles, esters, phosphines, thioethers, aromatic compounds, olefins, isocyanides, thiocyanates, and the like. Among these, phosphines and pyridines are preferable, and trialkylphosphine is more preferable.
- L 3 and L 4 each independently represent an arbitrary anionic ligand. Also, 2, 3, 4, 5 or 6 of R 3 , R 4 , L 1 , L 2 , L 3 and L 4 are bonded to each other to form a multidentate chelating ligand. May be.
- the anionic (anionic) ligands L 3 and L 4 are ligands having a negative charge when separated from the central metal, for example, Halogen atoms such as fluorine, chlorine, bromine and iodine; hydrocarbons containing oxygen such as diketonate, alkoxy, aryloxy and carboxy; substituted with halogen atoms such as cyclopentadienyl chloride And alicyclic hydrocarbon groups.
- Halogen atoms such as fluorine, chlorine, bromine and iodine
- hydrocarbons containing oxygen such as diketonate, alkoxy, aryloxy and carboxy
- halogen atoms such as cyclopentadienyl chloride And alicyclic hydrocarbon groups.
- a halogen atom is preferable and a chlorine atom is more preferable.
- Examples of the ruthenium complex catalyst represented by the general formula (2) include benzylidene (1,3-dimesitylimidazolidine-2-ylidene) (tricyclohexylphosphine) ruthenium dichloride, (1,3-dimesityl).
- Examples of the ruthenium carbene complex catalyst represented by the general formula (3) include (1,3-dimesitylimidazolidine-2-ylidene) (phenylvinylidene) (tricyclohexylphosphine) ruthenium dichloride, (t-butyl). Vinylidene) (1,3-diisopropyl-4-imidazoline-2-ylidene) (tricyclopentylphosphine) ruthenium dichloride, bis (1,3-dicyclohexyl-4-imidazoline-2-ylidene) phenylvinylidene ruthenium dichloride, and the like.
- the ring-opening polymerization using a metathesis reaction catalyst can be performed in a solvent or without a solvent.
- the hydrogenation reaction is carried out as it is without isolating the produced polymer after completion of the polymerization reaction, the polymerization is preferably carried out in a solvent.
- the solvent used is not particularly limited as long as it dissolves the polymer produced and does not inhibit the polymerization reaction.
- the solvent used include aliphatic hydrocarbons such as n-pentane, n-hexane, and n-heptane; cyclopentane, cyclohexane, methylcyclohexane, dimethylcyclohexane, trimethylcyclohexane, ethylcyclohexane, diethylcyclohexane, decahydronaphthalene, and bicyclo Alicyclic hydrocarbons such as heptane, tricyclodecane, hexahydroindene and cyclooctane; aromatic hydrocarbons such as benzene, toluene, xylene and mesitylene; nitrogen-containing compounds such as nitromethane, nitrobenzene, acetonitrile, propionitrile and benzonitrile Hydrocarbons; ethers
- Ketones methyl acetate, ethyl acetate, ethyl propionate, methyl benzoate, chloroform, dichloromethane, 1,2-dichloroethane, chlorobenzene, dichlorobenzene, halogenated hydrocarbons such as chlorobenzene; and the like.
- aromatic hydrocarbons alicyclic hydrocarbons, ethers, ketones or esters is preferable.
- the concentration of the monomer in the solvent is preferably 1 to 50% by weight, more preferably 2 to 45% by weight, and still more preferably 5 to 40% by weight.
- the monomer concentration is less than 1% by weight, the productivity of the polymer may be deteriorated, and when it exceeds 50% by weight, the viscosity after polymerization may be too high, and subsequent hydrogenation and the like may be difficult. .
- the metathesis reaction catalyst may be dissolved in a solvent and added to the reaction system, or may be added as it is without being dissolved.
- the solvent for preparing the catalyst solution include the same solvents as those used for the polymerization reaction.
- a molecular weight modifier can be added to the reaction system in order to adjust the molecular weight of the polymer.
- molecular weight regulators include ⁇ -olefins such as 1-butene, 1-pentene, 1-hexene and 1-octene; 1,4-pentadiene, 1,4-hexadiene, 1,5-hexadiene, 1,6-heptadiene , Non-conjugated dienes such as 2-methyl-1,4-pentadiene and 2,5-dimethyl-1,5-hexadiene; 1,3-butadiene, 2-methyl-1,3-butadiene, 2,3-dimethyl- Conjugated dienes such as 1,3-butadiene, 1,3-pentadiene, 1,3-hexadiene; styrenes such as styrene and vinyltoluene; ethers such as ethyl vinyl ether,
- the polymerization temperature is not particularly limited, but is usually ⁇ 100 ° C. to + 200 ° C., preferably ⁇ 50 ° C. to + 180 ° C., more preferably ⁇ 30 ° C. to + 160 ° C., and further preferably 0 ° C. to + 140 ° C.
- the polymerization time is usually from 1 minute to 100 hours, and can be appropriately adjusted according to the progress of the reaction.
- the addition polymer coalescence is a known addition polymerization catalyst such as at least one monomer represented by the general formula (1) and a copolymerizable monomer used as necessary. It can be obtained by polymerization using a catalyst comprising a titanium, zirconium or vanadium compound and an organoaluminum compound. These polymerization catalysts can be used alone or in combination of two or more. The amount of the polymerization catalyst is usually in the range of 1: 100 to 1: 2,000,000 as a molar ratio of the metal compound to the monomer in the polymerization catalyst.
- the polymer (A) used in the present invention is a ring-opening polymer
- a hydrogenation reaction is further performed, and a hydrogenated product in which carbon-carbon double bonds contained in the main chain are hydrogenated It is preferable to do.
- the ratio of hydrogenated carbon-carbon double bonds is usually 50% or more, and 70% or more from the viewpoint of heat resistance. It is preferably 90% or more, more preferably 95% or more.
- Hydrogenation ratio of the hydrogenated product may, for example, carbon in the 1 H-NMR spectrum of the ring-opening polymer - a peak intensity derived from the carbon-carbon double bond, carbon in the 1 H-NMR spectrum of the hydrogenated product - carbon double It can obtain
- the hydrogenation reaction can be performed, for example, by converting a carbon-carbon double bond in the main chain of the ring-opened polymer into a saturated single bond using hydrogen gas in the presence of a hydrogenation catalyst.
- the hydrogenation catalyst to be used is not particularly limited, such as a homogeneous catalyst and a heterogeneous catalyst, and those generally used for hydrogenation of olefin compounds can be appropriately used.
- homogeneous catalysts include transitions such as cobalt acetate and triethylaluminum, nickel acetylacetonate and triisobutylaluminum, a combination of titanocene dichloride and n-butyllithium, zirconocene dichloride and sec-butyllithium, tetrabutoxytitanate and dimethylmagnesium, etc.
- Ziegler catalyst comprising a combination of a metal compound and an alkali metal compound; ruthenium carbene complex catalyst, dichlorotris (triphenylphosphine) rhodium described in the above-mentioned ring-opening metathesis reaction catalyst, JP-A-7-2929, JP-A-7 -149823, JP-A-11-109460, JP-A-11-158256, JP-A-11-193323, JP-A-11-109460, etc.
- Noble metal complex catalyst of ruthenium compounds and the like.
- heterogeneous catalyst examples include a hydrogenation catalyst in which a metal such as nickel, palladium, platinum, rhodium, and ruthenium is supported on a carrier such as carbon, silica, diatomaceous earth, alumina, and titanium oxide. More specifically, for example, nickel / silica, nickel / diatomaceous earth, nickel / alumina, palladium / carbon, palladium / silica, palladium / diatomaceous earth, palladium / alumina and the like can be used. These hydrogenation catalysts can be used alone or in combination of two or more.
- rhodium, ruthenium, and the like can be selectively hydrogenated from carbon-carbon double bonds in the polymer without causing side reactions such as modification of the functional group contained in the ring-opening polymer.
- a noble metal complex catalyst and a palladium supported catalyst such as palladium / carbon is preferred, and the use of a ruthenium carbene complex catalyst or a palladium supported catalyst is more preferred.
- the ruthenium carbene complex catalyst described above can be used as a ring-opening metathesis reaction catalyst and a hydrogenation catalyst. In this case, the ring-opening metathesis reaction and the hydrogenation reaction can be performed continuously.
- a vinyl compound such as ethyl vinyl ether or a catalyst modifier such as ⁇ -olefin is added to activate the catalyst. Then, a method of starting the hydrogenation reaction is preferably employed. Furthermore, it is also preferable to employ a method for improving the activity by adding a base such as triethylamine or N, N-dimethylacetamide.
- the hydrogenation reaction is usually performed in an organic solvent.
- an organic solvent it can select suitably by the solubility of the hydride to produce
- the organic solvent similar to the said polymerization solvent can be used. Therefore, after the polymerization reaction, the hydrogenation catalyst can be added to the reaction solution or the filtrate obtained by filtering the metathesis reaction catalyst from the reaction solution without replacing the solvent.
- the conditions for the hydrogenation reaction may be appropriately selected according to the type of hydrogenation catalyst used.
- the amount of the hydrogenation catalyst used is usually 0.01 to 50 parts by weight, preferably 0.05 to 20 parts by weight, more preferably 0.1 to 10 parts by weight with respect to 100 parts by weight of the ring-opening polymer. .
- the reaction temperature is usually ⁇ 10 ° C. to + 250 ° C., preferably ⁇ 10 ° C. to + 210 ° C., more preferably 0 ° C. to + 200 ° C. At a temperature lower than this range, the reaction rate becomes slow. Conversely, at a high temperature, a side reaction tends to occur.
- the pressure of hydrogen is usually 0.01 to 10.0 MPa, preferably 0.05 to 8.0 MPa, and more preferably 0.1 to 6.0 MPa.
- the time for the hydrogenation reaction is appropriately selected in order to control the hydrogenation rate.
- the reaction time is usually in the range of 0.1 to 50 hours, and 50% or more, preferably 70% or more, more preferably 90% or more, most preferably, of the carbon-carbon double bonds of the main chain in the polymer. 95% or more can be hydrogenated.
- the crosslinking agent (B) used in the present invention is one that forms a crosslinked structure between crosslinking agent molecules by heating or one that reacts with the polymer (A) to form a crosslinked structure between resin molecules.
- the molecular weight of the crosslinking agent (B) is not particularly limited, but is usually 100 to 100,000, preferably 300 to 50,000, more preferably 500 to 10,000.
- a crosslinking agent can be used individually or in combination of 2 types or more, respectively.
- crosslinking agent (B) examples include aliphatic polyamines such as hexamethylenediamine; aromatic polyamines such as 4,4′-diaminodiphenyl ether and diaminodiphenylsulfone; 2,6-bis (4′-azidobenzal) Azides such as cyclohexanone and 4,4′-diazidodiphenylsulfone; polyamides such as nylon, polyhexamethylenediamine telelephthalamide and polyhexamethyleneisophthalamide; N, N, N ′, N ′, N ′′, Melamines which may have a methylol group such as N ′′-(hexaalkoxyalkyl) melamine or an imino group (trade names “Cymel 303, Cymel 325, Cymel 370, Cymel 232, Cymel 235, Cymel 272, Cymel 212, My Court 506 " ⁇ End Cymel series such as INDUSTRIES, etc.
- the epoxy compound examples include a trifunctional epoxy compound having a dicyclopentadiene skeleton (trade name “XD-1000”, manufactured by Nippon Kayaku Co., Ltd.), 2,2-bis (hydroxymethyl) 1-butanol 1,2-epoxy-4- (2-oxiranyl) cyclohexane adduct (15-functional alicyclic epoxy resin having cyclohexane skeleton and terminal epoxy group, trade name “EHPE3150”, manufactured by Daicel Chemical Industries), epoxidation 3-cyclohexene-1,2-dicarboxylate bis (3-cyclohexenylmethyl) modified ⁇ -caprolactone (aliphatic cyclic trifunctional epoxy resin, trade name “Epolide GT301”, manufactured by Daicel Chemical Industries), epoxidized butane Tetracarboxylic acid tetrakis (3-cyclohexenylmethyl) modified ⁇ -caprolactone ( An epoxy compound having an alicyclic structure such as an aliphatic ali
- Aromatic amine type polyfunctional epoxy compound (trade name “H-434”, manufactured by Tohto Kasei Kogyo Co., Ltd.), cresol novolac type polyfunctional epoxy compound (trade name “EOCN-1020”, manufactured by Nippon Kayaku Co., Ltd.), phenol novolac type Polyfunctional epoxy compound (trade names “Epicoat 152, Epicoat 154”, manufactured by Japan Epoxy Resin Co., Ltd.), polyfunctional epoxy compound having a naphthalene skeleton (trade name “EXA-4700”, manufactured by Dainippon Ink and Chemicals, Inc.), chain Alkyl polyfunctional epoxy compound (trade name “SR-TMP”, manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.), polyfunctional epoxy polybutadiene (trade name “Epolide PB3600”, manufactured by Daicel Chemical Industries, Ltd.), glycerin glycidyl polyether compound (trade name “ SR-GLG ”(manufactured by Sakamoto Pharmaceutical Co., Ltd.
- epoxy compounds a polyfunctional epoxy compound having two or more epoxy groups is preferable, and a resin film obtained using a radiation-sensitive resin composition can be excellent in heat-resistant shape retention. And a polyfunctional epoxy compound having 3 or more epoxy groups is particularly preferable.
- the content of the crosslinking agent (B) in the radiation-sensitive resin composition used in the present invention is not particularly limited, and heat resistance required when a pattern is provided on a resin film obtained using the resin composition of the present invention. However, it is usually 1 to 500 parts by weight, preferably 5 to 300 parts by weight, more preferably 10 to 150 parts by weight with respect to 100 parts by weight of the polymer (A). It is. If the crosslinking agent (B) is too much or too little, the heat resistance tends to decrease.
- the radiation-sensitive compound (C) used in the present invention is a compound that can cause a chemical reaction upon irradiation with radiation such as ultraviolet rays and electron beams.
- the radiation sensitive compound (C) is preferably one capable of controlling the alkali solubility of the resin film formed from the resin composition, and it is particularly preferable to use a photoacid generator.
- Examples of such a radiation sensitive compound (C) include azide compounds such as acetophenone compounds, triarylsulfonium salts and quinonediazide compounds, with azide compounds being particularly preferred, and quinonediazide compounds being particularly preferred.
- azide compounds such as acetophenone compounds, triarylsulfonium salts and quinonediazide compounds, with azide compounds being particularly preferred, and quinonediazide compounds being particularly preferred.
- quinonediazide compound for example, an ester compound of a quinonediazidesulfonic acid halide and a compound having a phenolic hydroxyl group can be used.
- the quinone diazide sulfonic acid halide include 1,2-naphthoquinone diazide-5-sulfonic acid chloride, 1,2-naphthoquinone diazide-4-sulfonic acid chloride, 1,2-benzoquinone diazide-5-sulfonic acid chloride, and the like. Can be mentioned.
- Representative examples of the compound having a phenolic hydroxyl group include 1,1,3-tris (2,5-dimethyl-4-hydroxyphenyl) -3-phenylpropane, 4,4 ′-[1- [4- [1 -[4-hydroxyphenyl] -1-methylethyl] phenyl] ethylidene] bisphenol and the like.
- phenolic hydroxyl group examples include 2,3,4-trihydroxybenzophenone, 2,3,4,4′-tetrahydroxybenzophenone, 2-bis (4-hydroxyphenyl) propane, tris (4- Hydroxyphenyl) methane, 1,1,1-tris (4-hydroxy-3-methylphenyl) ethane, 1,1,2,2-tetrakis (4-hydroxyphenyl) ethane, novolak resin oligomer, phenolic hydroxyl group Examples thereof include oligomers obtained by copolymerizing one or more compounds and dicyclopentadiene.
- a condensate of 1,2-naphthoquinonediazide-5-sulfonic acid chloride and a compound having a phenolic hydroxyl group is preferable, and 1,1,3-tris (2,5-dimethyl-4-hydroxyphenyl)-
- a condensate of 3-phenylpropane (1 mol) and 1,2-naphthoquinonediazide-5-sulfonic acid chloride (1.9 mol) is more preferred.
- photoacid generators include onium salts, halogenated organic compounds, ⁇ , ⁇ ′-bis (sulfonyl) diazomethane compounds, ⁇ -carbonyl- ⁇ ′-sulfonyldiazomethane compounds, sulfone compounds, Known compounds such as organic acid ester compounds, organic acid amide compounds, and organic acid imide compounds can be used. These radiation-sensitive compounds can be used alone or in combination of two or more.
- the content of the radiation sensitive compound (C) in the radiation sensitive resin composition used in the present invention is preferably 10 to 100 parts by weight, more preferably 15 to 70 parts by weight with respect to 100 parts by weight of the polymer (A). Parts, more preferably in the range of 20-50 parts by weight. If the content of the radiation sensitive compound (C) is within this range, when patterning a resin film made of the radiation sensitive resin composition, there is a difference in solubility in the developer between the radiation irradiated portion and the radiation unirradiated portion. It is preferable because it is large, radiation sensitivity is high, and patterning by development is easy.
- the radiation-sensitive resin composition used in the present invention may contain a solvent.
- Solvents are not particularly limited, and those known as solvents for radiation sensitive resin compositions such as acetone, methyl ethyl ketone, cyclopentanone, 2-hexanone, 3-hexanone, 2-heptanone, 3-heptanone, 4-heptanone Linear ketones such as 2-octanone, 3-octanone and 4-octanone; alcohols such as n-propyl alcohol, isopropyl alcohol, n-butyl alcohol and cyclohexanol; ethylene glycol dimethyl ether, ethylene glycol diethyl ether, dioxane Ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, and other alcohol ethers; propyl formate, butyl formate, propyl acetate, butyl acetate, methyl propionate, propio Esters such as e
- solvents may be used alone or in combination of two or more.
- the content of the solvent is preferably in the range of 10 to 10,000 parts by weight, more preferably 50 to 5000 parts by weight, and further preferably 100 to 1000 parts by weight with respect to 100 parts by weight of the polymer (A).
- a solvent will be normally removed after resin film formation.
- the radiation-sensitive resin composition used in the present invention is a surfactant, an acidic compound, a coupling agent or a derivative thereof, a sensitizer, a latent acid, if desired, as long as the effects of the present invention are not inhibited.
- Other compounding agents such as a generator, an antioxidant, a light stabilizer, an antifoaming agent, a pigment, a dye, and a filler;
- Surfactant is used for the purpose of preventing striation (after application stripes) and improving developability.
- Specific examples of the surfactant include polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, polyoxyethylene alkyl ethers such as polyoxyethylene oleyl ether; polyoxyethylene octyl phenyl ether, polyoxyethylene nonyl phenyl ether, and the like.
- Nonionic surfactants such as polyoxyethylene dialkyl esters such as polyoxyethylene dilaurate and polyoxyethylene distearate; Fluorine surfactants; Silicone surfactants; Methacrylic acid copolymer System surfactants; acrylic acid copolymer system surfactants; and the like.
- the acidic compound is used for the purpose of improving the adhesion between the resin film made of the radiation-sensitive resin composition and each layer including the semiconductor layer constituting the semiconductor element substrate.
- an aliphatic compound having an acidic group, an aromatic compound, a heterocyclic compound, or the like can be used as the acidic compound.
- the acidic group may be an acidic functional group, and specific examples thereof include strong acidic groups such as sulfonic acid group and phosphoric acid group; weak acidic groups such as carboxy group, thiol group and carboxymethylenethio group. It is done. Among these, a carboxy group, a thiol group, or a carboxymethylenethio group is preferable, and a carboxy group is particularly preferable.
- oxalic acid ethanedioic acid
- malonic acid propanedioic acid
- butanedioic acid also referred to as “succinic acid”
- 1,2-cyclohexanedicarboxylic acid 2-oxopropanoic acid, 2-hydroxybutanedioic acid, 2-hydroxypropanetricarboxylic acid, mercaptosuccinic acid, dim
- the number of acidic groups is two or more from the viewpoint that the effect of improving the adhesion between the resin film comprising the radiation-sensitive resin composition and each layer including the semiconductor layer constituting the semiconductor element substrate is high.
- the compounds having two acidic groups include ethanedioic acid, propanedioic acid, butanedioic acid, pentanedioic acid, hexanedioic acid, 1,2-cyclohexanedicarboxylic acid, benzene-1,2-dicarboxylic acid (“phthalic acid”).
- Benzene-1,3-dicarboxylic acid also referred to as “isophthalic acid”
- benzene-1,4-dicarboxylic acid also referred to as “terephthalic acid”
- biphenyl-2,2′-dicarboxylic acid also referred to as “isophthalic acid”
- the coupling agent or derivative thereof has an effect of further improving the adhesion between the resin film made of the radiation sensitive resin composition and each layer including the semiconductor layer constituting the semiconductor element substrate.
- a compound having one atom selected from a silicon atom, a titanium atom, an aluminum atom, and a zirconium atom and having a hydrocarbyloxy group or a hydroxy group bonded to the atom can be used.
- Tetraalkoxysilanes such as tetramethoxysilane, tetraethoxysilane, tetra-n-propoxysilane, tetra-i-propoxysilane, tetra-n-butoxysilane, Methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, n-propyltrimethoxysilane, n-propyltriethoxysilane, i-propyltrimethoxysilane, i-propyltriethoxysilane, n- Butyltrimethoxysilane, n-butyltriethoxysilane, n-pentyltrimethoxysilane, n-hexyltrimethoxysilane, n-hepty
- sensitizer examples include 2H-pyrido- (3,2-b) -1,4-oxazin-3 (4H) -ones, 10H-pyrido- (3,2-b) -1,4. -Benzothiazines, urazoles, hydantoins, barbituric acids, glycine anhydrides, 1-hydroxybenzotriazoles, alloxans, maleimides and the like.
- the latent acid generator is used for the purpose of improving the heat resistance and chemical resistance of the radiation-sensitive resin composition used in the present invention.
- Specific examples thereof include sulfonium salts, benzothiazolium salts, ammonium salts, and phosphonium salts, which are cationic polymerization catalysts that generate an acid upon heating. Of these, sulfonium salts and benzothiazolium salts are preferred.
- antioxidant there can be used phenolic antioxidants, phosphorus antioxidants, sulfur antioxidants, lactone antioxidants and the like used in ordinary polymers.
- phenols 2,6-di-t-butyl-4-methylphenol, p-methoxyphenol, styrenated phenol, n-octadecyl-3- (3 ′, 5′-di-t-butyl-4 '-Hydroxyphenyl) propionate, 2,2'-methylene-bis (4-methyl-6-t-butylphenol), 2-t-butyl-6- (3'-t-butyl-5'-methyl-2' -Hydroxybenzyl) -4-methylphenyl acrylate, 4,4'-butylidene-bis- (3-methyl-6-tert-butylphenol), 4,4'-thio-bis (3-methyl-6-tert-butylphenol) ), Pentaerythritol tetrakis [3- (3,
- light stabilizers examples include ultraviolet absorbers such as benzophenone, salicylic acid ester, benzotriazole, cyanoacrylate, and metal complex salts, hindered amine (HALS), and the like that capture radicals generated by light. Either is acceptable.
- HALS is a compound having a piperidine structure, and is preferable because it is less colored and has good stability with respect to the radiation-sensitive resin composition.
- Specific compounds include bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate, 1,2,2,6,6-pentamethyl-4-piperidyl / tridecyl 1,2,3,4 -Butanetetracarboxylate, bis (1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate and the like.
- the preparation method of the radiation sensitive resin composition used by this invention is not specifically limited, What is necessary is just to mix each component which comprises a radiation sensitive resin composition by a well-known method.
- the mixing method is not particularly limited, but it is preferable to mix a solution or dispersion obtained by dissolving or dispersing each component constituting the radiation-sensitive resin composition in a solvent. Thereby, a radiation sensitive resin composition is obtained with the form of a solution or a dispersion liquid.
- the method for dissolving or dispersing each component constituting the radiation-sensitive resin composition may be in accordance with a conventional method. Specifically, stirring using a stirrer and a magnetic stirrer, a high-speed homogenizer, a disper, a planetary stirrer, a twin-screw stirrer, a ball mill, a three-roll, etc. can be used. Further, after each component is dissolved or dispersed in a solvent, it may be filtered using, for example, a filter having a pore size of about 0.5 ⁇ m.
- the solid content concentration of the radiation-sensitive resin composition used in the present invention is usually 1 to 70% by weight, preferably 5 to 60% by weight, more preferably 10 to 50% by weight. If the solid content concentration is within this range, dissolution stability, coating properties, film thickness uniformity of the formed resin film, flatness, and the like can be highly balanced.
- the semiconductor element substrate of the present invention has a resin film made of the above-described radiation-sensitive resin composition, and the resin film includes a semiconductor element surface mounted on the semiconductor element substrate or a semiconductor layer included in the semiconductor element. Formed in contact.
- the semiconductor element substrate of the present invention is not particularly limited as long as it has a configuration in which a semiconductor element is mounted on the substrate, and is not particularly limited, but is an active matrix substrate, an organic EL element substrate, an integrated circuit element substrate, and a solid-state imaging element.
- An active matrix substrate and an organic EL element substrate are preferable from the viewpoint that the effect of improving characteristics by forming the resin film made of the radiation-sensitive resin composition described above is particularly remarkable.
- the active matrix substrate as an example of the semiconductor element substrate of the present invention is not particularly limited, but switching elements such as thin film transistors (TFTs) are arranged in a matrix on the substrate, and for driving the switching elements.
- switching elements such as thin film transistors (TFTs) are arranged in a matrix on the substrate, and for driving the switching elements. Examples include a configuration in which a gate signal line for supplying a gate signal and a source signal line for supplying a display signal to the switching element are provided so as to cross each other.
- TFTs thin film transistors
- a thin film transistor as an example of a switching element, a structure in which a gate electrode, a gate insulating layer, a semiconductor layer, a source electrode, and a drain electrode are provided over a substrate is exemplified.
- the organic EL element substrate as an example of the semiconductor element substrate of the present invention includes, for example, an anode, a hole injection transport layer, an organic light emitting layer as a semiconductor layer, an electron injection layer, and a cathode on the substrate.
- examples include those having a structure having a light emitting body portion and a pixel separation film for separating the light emitting body portion.
- a resin film which comprises the semiconductor element substrate of this invention it consists of the radiation sensitive resin composition mentioned above, and contacts with the semiconductor layer contained in the semiconductor element surface or semiconductor element mounted in the semiconductor element substrate.
- the resin film formed is not particularly limited, and when the semiconductor element substrate of the present invention is an active matrix substrate or an organic EL element substrate, it can be configured as follows. That is, for example, when the semiconductor element substrate of the present invention is an active matrix substrate, the resin film made of the above-described radiation-sensitive resin composition is a protective film formed on the surface of the active matrix substrate or an active matrix.
- a gate insulating film formed in contact with a semiconductor layer (for example, an amorphous silicon layer) of a thin film transistor that forms a substrate can be used.
- the semiconductor element substrate of the present invention is an organic EL element substrate
- a sealing film formed on the surface of the organic EL element substrate or a light emitter part usually an anode, A pixel separation film for separating a hole injection transport layer, an organic light emitting layer as a semiconductor layer, an electron injection layer, and a cathode.
- the method for forming the resin film is not particularly limited, and for example, a method such as a coating method or a film lamination method can be used.
- the application method is, for example, a method in which a radiation-sensitive resin composition is applied and then dried by heating to remove the solvent.
- the method for applying the radiation sensitive resin composition include various methods such as a spray method, a spin coating method, a roll coating method, a die coating method, a doctor blade method, a spin coating method, a bar coating method, and a screen printing method. Can be adopted.
- the heating and drying conditions vary depending on the type and mixing ratio of each component, but are usually 30 to 150 ° C., preferably 60 to 120 ° C., usually 0.5 to 90 minutes, preferably 1 to 60 minutes, and more. Preferably, it may be performed in 1 to 30 minutes.
- the radiation-sensitive resin composition is applied onto a B-stage film-forming substrate such as a resin film or a metal film, and then the solvent is removed by heat drying to obtain a B-stage film.
- a B-stage film-forming substrate such as a resin film or a metal film
- the heating and drying conditions can be appropriately selected according to the type and mixing ratio of each component, but the heating temperature is usually 30 to 150 ° C., and the heating time is usually 0.5 to 90 minutes.
- Film lamination can be performed using a pressure laminator, a press, a vacuum laminator, a vacuum press, a roll laminator or the like.
- the thickness of the resin film is not particularly limited and may be appropriately set depending on the application. However, when the resin film is a protective film for an active matrix substrate or a sealing film for an organic EL element substrate.
- the thickness of the resin film is preferably 0.1 to 100 ⁇ m, more preferably 0.5 to 50 ⁇ m, and still more preferably 0.5 to 30 ⁇ m.
- the radiation sensitive resin composition used in the present invention contains a crosslinking agent (B), a crosslinking reaction can be performed on the resin film formed by the above-described coating method or film lamination method.
- Such crosslinking may be appropriately selected depending on the type of the crosslinking agent (B), but is usually performed by heating.
- the heating method can be performed using, for example, a hot plate or an oven.
- the heating temperature is usually 180 to 250 ° C.
- the heating time is appropriately selected depending on the area and thickness of the resin film, the equipment used, etc.
- the oven is usually run for 5 to 60 minutes. When used, it is usually in the range of 30 to 90 minutes. Heating may be performed in an inert gas atmosphere as necessary.
- any inert gas may be used as long as it does not contain oxygen and does not oxidize the resin film.
- examples thereof include nitrogen, argon, helium, neon, xenon, and krypton.
- nitrogen and argon are preferable, and nitrogen is particularly preferable.
- an inert gas having an oxygen content of 0.1% by volume or less, preferably 0.01% by volume or less, particularly nitrogen is suitable.
- These inert gases can be used alone or in combination of two or more.
- the resin film made of the radiation-sensitive resin composition described above is formed in a predetermined pattern such as a protective film for an active matrix substrate or a sealing film for an organic EL element substrate, It may be patterned.
- the latent image pattern is formed by irradiating the resin film before patterning with active radiation, and then the developer is brought into contact with the resin film having the latent image pattern. The method of making it manifest is mentioned.
- actinic radiation what can activate the radiation sensitive compound (C) contained in a radiation sensitive resin composition, and can change the alkali solubility of the radiation sensitive resin composition containing a radiation sensitive compound (C). If it is, it will not specifically limit.
- ultraviolet rays ultraviolet rays having a single wavelength such as g-line or i-line, light rays such as KrF excimer laser light and ArF excimer laser light; particle beams such as electron beams;
- a method for selectively irradiating these actinic radiations in a pattern to form a latent image pattern a conventional method may be used.
- ultraviolet, g-line, i-line, KrF excimer is used by a reduction projection exposure apparatus or the like.
- a method of irradiating a light beam such as a laser beam or an ArF excimer laser beam through a desired mask pattern, a method of drawing with a particle beam such as an electron beam, or the like can be used.
- light When light is used as the active radiation, it may be single wavelength light or mixed wavelength light.
- Irradiation conditions are appropriately selected depending on the actinic radiation to be used. For example, when a light beam having a wavelength of 200 to 450 nm is used, the irradiation amount is usually 10 to 1,000 mJ / cm 2 , preferably 50 to 500 mJ / cm 2 .
- the protective film is heat-treated at a temperature of about 60 to 130 ° C. for about 1 to 2 minutes as necessary.
- an aqueous solution of an alkaline compound is usually used.
- an alkaline compound for example, an alkali metal salt, an amine, or an ammonium salt can be used.
- the alkaline compound may be an inorganic compound or an organic compound.
- alkali metal salts such as sodium hydroxide, potassium hydroxide, sodium carbonate, sodium silicate and sodium metasilicate; ammonia water; primary amines such as ethylamine and n-propylamine; diethylamine Secondary amines such as di-n-propylamine; tertiary amines such as triethylamine and methyldiethylamine; quaternary ammonium salts such as tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrabutylammonium hydroxide and choline Alcohol alcohols such as dimethylethanolamine and triethanolamine; pyrrole, piperidine, 1,8-diazabicyclo [5.4.0] undec-7-ene, 1,5-diazabicyclo [4.3.0] nona-5 -En, N-Me Cyclic amines such as Rupiroridon; and the like.
- alkaline compounds can be
- aqueous medium of the alkaline aqueous solution water; water-soluble organic solvents such as methanol and ethanol can be used.
- the alkaline aqueous solution may have a surfactant added in an appropriate amount.
- a paddle method, a spray method, a dipping method, or the like is used as a method of bringing the developer into contact with the resin film having the latent image pattern.
- the development is usually appropriately selected in the range of 0 to 100 ° C., preferably 5 to 55 ° C., more preferably 10 to 30 ° C., and usually 30 to 180 seconds.
- the resin film on which the target pattern is formed in this manner can be rinsed with a rinsing liquid in order to remove the development residue, if necessary. After the rinse treatment, the remaining rinse liquid is removed with compressed air or compressed nitrogen. Furthermore, if necessary, in order to deactivate the radiation sensitive compound (C), the entire surface of the semiconductor element substrate can be irradiated with actinic radiation. For irradiation with actinic radiation, the method exemplified in the formation of the latent image pattern can be used.
- the resin film may be heated simultaneously with irradiation or after irradiation. Examples of the heating method include a method of heating the semiconductor element substrate in a hot plate or an oven. The temperature is usually in the range of 100 to 300 ° C, preferably 120 to 200 ° C.
- the resin film can be subjected to a crosslinking reaction after being patterned.
- Crosslinking may be performed according to the method described above.
- the semiconductor element substrate of the present invention as a composition for forming a resin film used in contact with a semiconductor element surface mounted on a semiconductor element substrate or a semiconductor layer included in the semiconductor element, the above general formula ( Using a radiation-sensitive resin composition comprising a polymer (A) comprising a monomer unit (a1) represented by 1), a crosslinking agent (B) and a radiation-sensitive compound (C) Therefore, the semiconductor element substrate is highly reliable and has excellent various electrical characteristics of the semiconductor element substrate such as low dielectric constant characteristics, low leakage current characteristics, and high breakdown voltage characteristics, and the semiconductor element
- the resin film contained in the substrate can have high transparency and excellent pattern formability by development.
- the present invention it is possible to pattern the resin film contained in the semiconductor element substrate with high accuracy while making the semiconductor element substrate highly reliable and excellent in various electrical characteristics.
- a semiconductor element substrate capable of high performance can be provided.
- the semiconductor element substrate of the present invention is an active matrix substrate
- the current between the source electrode and the drain electrode rises linearly as the voltage of the gate electrode increases.
- the leakage current characteristics and threshold voltage do not change. Therefore, the active matrix substrate has long life, low power consumption, and high contrast. It can be.
- the radiation sensitive resin composition was spin coated on a silicon wafer and then pre-baked at 100 ° C. for 2 minutes using a hot plate to form a 2.5 ⁇ m thick resin film.
- the resin film was irradiated with ultraviolet rays having a light intensity at 365 nm of 5 mW / cm 2 in the air for 40 seconds through a mask having a hole pattern of 5 ⁇ m ⁇ 5 ⁇ m.
- a development process was performed at 23 ° C. for 60 seconds using a 0.4 wt% tetramethylammonium hydroxide aqueous solution, followed by rinsing with ultrapure water for 30 seconds to form a contact hole pattern.
- the radiation sensitive resin composition was spin-coated on a silicon wafer and then pre-baked at 100 ° C. for 2 minutes using a hot plate to form a 0.12 ⁇ m thick resin film.
- the entire surface of the resin film was irradiated with light using a high-pressure mercury lamp to decompose the undecomposed radiation-sensitive compound remaining in the resin film.
- the test sample which consists of a silicon wafer in which the resin film was formed was obtained by heating with a hotplate at 230 degreeC for 1 hour in nitrogen atmosphere.
- the relative dielectric constant of the resin film was measured at 10 KHz (room temperature) according to JIS C6481. The lower the dielectric constant, the better.
- ⁇ Dielectric breakdown voltage> In the same manner as the evaluation of the relative dielectric constant, a test sample was prepared, and the dielectric breakdown voltage of the resin film was measured using the obtained test sample. In this example, a DC voltage was applied to the resin film at 50 V / min, and the voltage when the leakage current reached 1 ⁇ 10 ⁇ 6 mA / cm 3 or more was defined as a dielectric breakdown voltage. A higher dielectric breakdown voltage is more preferable.
- ⁇ Leakage current, threshold current> Apply a voltage of 20 V between the source electrode and drain electrode of the active matrix substrate, change the voltage applied to the gate electrode to ⁇ 20 to +30 V, and change the current flowing between the source electrode and the drain electrode to a manual prober. And the leakage current and the threshold voltage were measured by measuring using a semiconductor parameter analyzer (manufactured by Agilent, 4156C). The measurement is performed for each of the active matrix substrate in the initial state (before being held in a high temperature and high humidity environment) and the active matrix substrate after being held in a high temperature and high humidity environment of 50 ° C. and 80% RH for 100 hours. It was.
- the polymerization reaction liquid was obtained by charging into a vessel and reacting at 80 ° C. for 4 hours while stirring.
- the obtained polymerization reaction liquid was put in an autoclave and stirred for 5 hours at 150 ° C. and a hydrogen pressure of 4 MPa to perform a hydrogenation reaction, thereby obtaining a polymer (I).
- the resulting polymer (I) had a polymerization conversion rate of 99.7%, a weight average molecular weight of 7150, a number average molecular weight of 4690, a molecular weight distribution of 1.52, and a hydrogenation rate of 99.7%.
- Synthesis Example 2 >> The blending ratio of N- (2-ethylhexyl) -bicyclo [2.2.1] hept-5-ene-2,3-dicarboximide (NEHI) is 50 mol%, and 8-hydroxycarbonyltetracyclo [4.4. .0.1 2,5 .
- the polymer (II) was obtained in the same manner as in Synthesis Example 1, except that the blending ratio of 1 7,10 ] dodec-3-ene (TCDC) was changed to 50 mol%.
- the resulting polymer (II) had a polymerization conversion rate of 99.5%, a weight average molecular weight of 5670, a number average molecular weight of 3520, a molecular weight distribution of 1.61, and a hydrogenation rate of 99.9%.
- Example 1 Preparation of radiation-sensitive resin composition> 100 parts of the polymer (I) obtained in Synthesis Example 1, 550 parts of diethylene glycol ethyl methyl ether (EDM) as a solvent, N, N, N ′, N ′, N ′′, N as a crosslinking agent (B) 15 parts of ''-(hexaalkoxyalkyl) melamine-based crosslinking agent (trade name “Cymel 370”, manufactured by Cytec Industries), 1 of 2,2-bis (hydroxymethyl) 1-butanol as the crosslinking agent (B) , 2-epoxy-4- (2-oxiranyl) cyclohexane adduct (trade name “EHPE3150”, manufactured by Daicel Chemical Industries, Ltd., 15-functional alicyclic epoxy resin having a cyclohexane skeleton and a terminal epoxy group), 1,1,3-Tris (2,5-dimethyl-4-hydroxyphenyl) -3-phenylpropane (1
- chromium is formed with a film thickness of 200 nm using a sputtering apparatus, and re-patterning is performed by photolithography to obtain a gate electrode, a gate signal line, and a gate. A terminal part was formed.
- the CVD apparatus covers the gate electrode and the gate electrode, the silicon nitride film as the gate insulating film is 450 nm thick, the a-Si layer (amorphous silicon layer) as the semiconductor layer is 250 nm thick, ohmic An n + Si layer serving as a contact layer was continuously formed with a thickness of 50 nm, and the n + Si layer and the a-Si layer were patterned in an island shape.
- chromium is formed to a thickness of 200 nm on the gate insulating film and the n + Si layer by a sputtering apparatus, and a source electrode, a source signal line, a drain electrode, and a data terminal portion are formed by photolithography, and the source electrode and the drain are formed.
- An unnecessary n + Si layer between the electrodes was removed to form a back channel, thereby obtaining an array substrate in which a plurality of thin film transistors were formed on a glass substrate.
- the obtained array substrate was spin-coated with the radiation-sensitive resin composition obtained above, and then pre-baked at 90 ° C. for 2 minutes using a hot plate to obtain a resin film having a thickness of 1.2 ⁇ m. Formed.
- the resin film was irradiated with ultraviolet rays having a light intensity at 365 nm of 5 mW / cm 2 in the air for 40 seconds through a 10 ⁇ m ⁇ 10 ⁇ m hole pattern mask.
- the array substrate on which the protective film (resin film) was formed was obtained by performing post-baking by heating on a hot plate for 15 minutes.
- the array substrate on which the protective film (resin film) is formed as described above is transferred to a vacuum chamber, and a mixed gas of argon and oxygen (volume ratio 100: 4) is used as the sputtering gas, pressure 0.3 Pa, DC output 400 W. Then, by performing DC sputtering through a mask, an In—Sn—O-based amorphous transparent conductive layer (pixel electrode) having a film pressure of 200 nm was formed so as to be in contact with the drain electrode to obtain an active matrix substrate.
- a mixed gas of argon and oxygen volume ratio 100: 4
- Example 2 100 parts of the polymer (I) obtained in Synthesis Example 1, 550 parts of diethylene glycol ethyl methyl ether (EDM) as a solvent, N, N, N ′, N ′, N ′′, N as a crosslinking agent (B) ''-(Hexaalkoxyalkyl) melamine-based crosslinking agent (trade name “Cymel 232”, manufactured by Cytec Industries) 30 parts, epoxidized butanetetracarboxylic acid tetrakis (3-cyclohexenylmethyl) as crosslinking agent (B) 10 parts of modified ⁇ -caprolactone (trade name “Epolide GT401”, manufactured by Daicel Chemical Industries, Ltd., aliphatic cyclic tetrafunctional epoxy resin), 1,1,3-tris (2,5 as radiation sensitive compound (C)) -Dimethyl-4-hydroxyphenyl) -3-phenylpropane (1 mol) and 1,2-naphthoquinonedia
- Example 3 100 parts of the polymer (II) obtained in Synthesis Example 2, 550 parts of diethylene glycol ethyl methyl ether (EDM) as a solvent, N, N, N ′, N ′, N ′′, N as a crosslinking agent (B) 40 parts of ''-(hexaalkoxyalkyl) melamine-based crosslinking agent (trade name “Cymel 370”, manufactured by Cytec Industries), epoxidized butanetetracarboxylic acid tetrakis (3-cyclohexenylmethyl) as crosslinking agent (B) 10 parts of modified ⁇ -caprolactone (trade name “Epolide GT401”, manufactured by Daicel Chemical Industries, Ltd., aliphatic cyclic tetrafunctional epoxy resin), 1,1,3-tris (2,5 as radiation sensitive compound (C)) -Dimethyl-4-hydroxyphenyl) -3-phenylpropane (1 mol) and 1,2-naphthoquinon
- Comparative Example 1 Instead of 100 parts of the polymer (I) obtained in Synthesis Example 1, 100 parts of a cycloolefin polymer (trade name “ARTON (F5023)”, manufactured by JSR) was used, and 550 parts of diethylene glycol ethyl methyl ether (EDM). A radiation-sensitive resin composition was prepared in the same manner as in Example 1 except that 900 parts of mesitylene was used instead. Moreover, the active matrix board
- Comparative Example 2 a radiation sensitive resin composition (trade name “Optomer (PC403)”, manufactured by JSR Corporation) containing an acrylic resin was prepared as a radiation sensitive resin composition. Moreover, the active matrix board
- Comparative Example 3 a radiation sensitive resin composition containing a polyimide resin (trade name “Photo Nice PW-2100”, manufactured by Toray Industries, Inc.) was prepared as a radiation sensitive resin composition. Moreover, the active matrix board
- the resin film obtained using the predetermined radiation-sensitive resin composition of the present invention has a residue at the time of development, rough surface of the unexposed area, and a hole state at the time of firing. It is confirmed that the film hardness at firing and the film hardness are both good, the pattern forming property at the time of development is excellent, and the patterning with high accuracy is possible. Further, from the results of Examples 1 to 3, the resin film obtained using the predetermined radiation-sensitive resin composition of the present invention has a low relative dielectric constant, a high dielectric breakdown voltage, and excellent transparency. Therefore, it can be confirmed that the semiconductor element substrate obtained by using this can be excellent in these characteristics.
- the active matrix substrates of Examples 1 to 3 have a small leakage current, and even when held in a high temperature and high humidity environment for a long time, the leakage current characteristics and the threshold voltage do not change and have high reliability. It was a thing. From these results, it can be said that the resin film obtained by using the predetermined radiation-sensitive resin composition of the present invention is suitable as a resin film of a semiconductor element substrate, particularly an active matrix substrate.
- Example 4 an organic EL element substrate having a sealing film made of the radiation-sensitive resin composition prepared in Example 1 was produced by the following method. That is, first, a reverse taper type having a film thickness of 3.5 ⁇ m is disposed on a 25 mm ⁇ 75 mm ⁇ 1.1 mm size glass plate having a chromium electrode layer 12 patterned on the surface through a light shielding film having a thickness of 1.0 ⁇ m. A substrate for an organic EL element having a structure provided with a resin partition layer was prepared.
- the substrate is fixed to a substrate holder of a commercially available vapor deposition apparatus (manufactured by Nippon Vacuum Engineering Co., Ltd.), and N, N′-bis (3-methylphenyl) -N, N′-diphenyl is attached to a molybdenum resistance heating boat.
- TPD [1,1'-biphenyl] -4,4'-diamine
- the TPD-containing boat was heated to 215 to 220 ° C., and TPD was evaporated at an evaporation rate of 0.1 to 0.3 nm / second to form a 60 nm-thick hole injecting and transporting layer.
- the substrate temperature at this time was room temperature.
- the DPVBi-containing boat is heated to 240 ° C., and DPVBi is vapor-deposited on the hole injecting and transporting layer at a vapor deposition rate of 0.1 to 0.3 nm / sec. A layer was formed.
- the substrate temperature at this time was also room temperature.
- the boat Alq 3 containing heated to 230 ° C., the light emitting layer on the at Alq 3 vapor deposition rate 0.01 ⁇ 0.03 nm / sec Evaporation was performed to form an electron injection layer having a thickness of 20 nm.
- silver is deposited on the electron injection layer at a deposition rate of 0.01 nm / second, and at the same time, magnesium is deposited on the electron injection layer at a deposition rate of 0.14 nm / second, and a mixed metal of magnesium and silver is used.
- An electron injection metal layer having a thickness of 10 nm was formed.
- an In—Zn—O-based amorphous transparent conductive layer having a thickness of 200 nm was formed on the electron-injecting metal layer by DC sputtering through the same mask.
- the DC sputtering conditions were a mixed gas of argon and oxygen (volume ratio 1000: 5) as a sputtering gas, a pressure of 0.3 Pa, and a DC output of 40 W.
- the light-emitting part of the organic EL element was formed by forming a transparent electrode layer (cathode) composed of an electron injection metal layer and an amorphous transparent conductive layer.
- the obtained organic EL element substrate was baked at 220 ° C. for 30 minutes using GC-MS (manufactured by Agilent, “GC6890N / MSD5973 (product name)”), and the degassing amount was measured.
- the degas amount was measured as a normal decane conversion value.
- the weight was as low as 98 mg per 1 g of the sealing film (resin film) contained in the measurement sample, which was a good result.
- the resin film obtained using the predetermined radiation-sensitive resin composition of the present invention has a residue at the time of development, rough surface of the unexposed area, a hole state at the time of firing, The film hardness, relative dielectric constant, and leakage current are all good, and from the results of Example 4, the amount of degassing in the case of an organic EL element substrate is small. It can be said that the resin film obtained by using the radiation-sensitive resin composition is also suitable as a resin film for an organic EL element substrate.
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Abstract
Description
好ましくは、前記重合体(A)が、前記一般式(1)で表される単量体と共重合可能な単量体の単位(a2)をさらに含む。
好ましくは、前記共重合可能な単量体の単位(a2)が、プロトン性極性基を有する環状オレフィン単量体の単位であり、より好ましくは、カルボキシ基含有環状オレフィン単量体の単位である。
好ましくは、前記重合体(A)が、前記一般式(1)で表される単量体と、前記プロトン性極性基を有する環状オレフィン単量体と、を開環共重合してなる重合体又は該重合体の水素添加物である。
好ましくは、前記架橋剤(B)が、アミノ基含有化合物と、エポキシ基含有化合物とを併用してなるものである。前記エポキシ基含有化合物としては、脂環構造を有するエポキシ基含有化合物が好ましい。
好ましくは、前記半導体素子基板は、アクティブマトリックス基板又は有機EL素子基板である。
以下においては、まず、本発明で用いる感放射線性樹脂組成物について説明する。
本発明で用いる感放射線性樹脂組成物は、本発明の半導体素子基板に実装される半導体素子表面、又は半導体素子に含まれる半導体層と接触して形成される樹脂膜を形成するための樹脂組成物であり、下記一般式(1)で表される単量体の単位(a1)を含んでなる重合体(A)、架橋剤(B)及び感放射線化合物(C)を含有する。
本発明において、プロトン性極性基を有する環状オレフィン樹脂に結合しているプロトン性極性基の数に特に限定はなく、また、相異なる種類のプロトン性極性基が含まれていてもよい。
シアノ基を有する環状オレフィンとしては、例えば、9-シアノテトラシクロ[6.2.1.13,6.02,7]ドデカ-4-エン、9-メチル-9-シアノテトラシクロ[6.2.1.13,6.02,7]ドデカ-4-エン、5-シアノビシクロ[2.2.1]ヘプト-2-エン等が挙げられる。
ハロゲン原子を有する環状オレフィンとしては、例えば、9-クロロテトラシクロ[6.2.1.13,6.02,7]ドデカ-4-エン、9-メチル-9-クロロテトラシクロ[6.2.1.13,6.02,7]ドデカ-4-エン等が挙げられる。
これら単量体(a2-2)は、それぞれ単独で用いてもよく、2種以上を組み合わせて用いてもよい。
これら単量体(a2-3)は、それぞれ単独で用いてもよく、2種以上を組み合わせて用いてもよい。
これらの環状オレフィン以外の単量体(a2-4)は、それぞれ単独で用いてもよく、2種以上を組み合わせて用いてもよい。
プロトン性極性基を有しない重合体は、上述した単量体(a2-2)~(a2-4)を任意に組み合わせて重合することによって得ることができる。
このような化合物の具体例としては、アクリル酸、メタクリル酸、アンゲリカ酸、チグリン酸、オレイン酸、エライジン酸、エルカ酸、ブラシジン酸、マレイン酸、フマル酸、シトラコン酸、メサコン酸、イタコン酸、アトロパ酸、ケイ皮酸等の不飽和カルボン酸;アリルアルコール、メチルビニルメタノール、クロチルアルコール、メタリルアルコール、1-フェニルエテン-1-オール、2-プロペン-1-オール、3-ブテン-1-オール、3-ブテン-2-オール、3-メチル-3-ブテン-1-オール、3-メチル-2-ブテン-1-オール、2-メチル-3-ブテン-2-オール、2-メチル-3-ブテン-1-オール、4-ペンテン-1-オール、4-メチル-4-ぺンテン-1-オール、2-ヘキセン-1-オール等の不飽和アルコール;等が挙げられる。
これら変性剤を用いた重合体の変性反応は、常法に従えばよく、通常、ラジカル発生剤の存在下で行われる。
本発明で用いる架橋剤(B)は、加熱により架橋剤分子間に架橋構造を形成するものや、重合体(A)と反応して樹脂分子間に架橋構造を形成するものであり、具体的には、2以上の反応性基を有する化合物が挙げられる。このような反応性基としては、例えば、アミノ基、カルボキシ基、水酸基、エポキシ基、イソシアネート基等が挙げられ、より好ましくはアミノ基、エポキシ基及びイソシアネート基であり、さらに好ましくはアミノ基及びエポキシ基であり、特に、アミノ基を有する化合物と、エポキシ基を有する化合物とを併用することが好ましい。
本発明で用いる感放射線化合物(C)は、紫外線や電子線等の放射線の照射により、化学反応を引き起こすことのできる化合物である。本発明において感放射線化合物(C)は、樹脂組成物から形成されてなる樹脂膜のアルカリ溶解性を制御できるものが好ましく、特に、光酸発生剤を使用することが好ましい。
これらの中でも、1,2-ナフトキノンジアジド-5-スルホン酸クロライドとフェノール性水酸基を有する化合物との縮合物が好ましく、1,1,3-トリス(2,5-ジメチル-4-ヒドロキシフェニル)-3-フェニルプロパン(1モル)と1,2-ナフトキノンジアジド-5-スルホン酸クロライド(1.9モル)との縮合物がより好ましい。
これらの感放射線化合物は、それぞれ単独で、又は2種以上を組み合わせて用いることができる。
酸性基を2つ有する化合物としては、エタン二酸、プロパン二酸、ブタン二酸、ペンタン二酸、ヘキサン二酸、1,2―シクロヘキサンジカルボン酸、ベンゼン-1,2-ジカルボン酸(「フタル酸」ともいう。)、ベンゼン-1,3-ジカルボン酸(「イソフタル酸」ともいう。)、ベンゼン-1,4-ジカルボン酸(「テレフタル酸」ともいう。)ビフェニル-2,2’-ジカルボン酸、2-(カルボキシメチル)安息香酸、3-(カルボキシメチル)安息香酸、4-(カルボキシメチル)安息香酸、2-メルカプト安息香酸、4-メルカプト安息香酸、2-メルカプト-6-ナフタレンカルボン酸、2-メルカプト-7-ナフタレンカルボン酸、1,2-ジメルカプトベンゼン、1,3-ジメルカプトベンゼン、1,4-ジメルカプトベンゼン、1,4-ナフタレンジチオール、1,5-ナフタレンジチオール、2,6-ナフタレンジチオール、2,7-ナフタレンジチオールの2つの酸性基を有する芳香族化合物;ピロール-2,3-ジカルボン酸、ピロール-2,4-ジカルボン酸、ピロール-2,5-ジカルボン酸、ピロール-3,4-ジカルボン酸、イミダゾール-2,4-ジカルボン酸-、イミダゾール-2,5-ジカルボン酸、イミダゾール-4,5-ジカルボン酸、ピラゾール-3,4-ジカルボン酸、ピラゾール-3,5-ジカルボン、チオフェン-2,3-ジカルボン酸、チオフェン-2,4-ジカルボン酸、チオフェン-2,5-ジカルボン酸、チオフェン-3,4-ジカルボン酸、チアゾール-2,4-ジカルボン酸、チアゾール-2,5-ジカルボン酸、チアゾール-4,5-ジカルボン酸、イソチアゾール-3,4-ジカルボン酸、イソチアゾール-3,5-ジカルボン酸、1,2,4-チアジアゾール-2,5-ジカルボン酸、1,3,4-チアジアゾール-2,5-ジカルボン酸、(5-メルカプト-1,2,4-チアジアゾール-3-イルチオ)酢酸、(5-メルカプト-1,3,4-チアジアゾール-2-イルチオ)酢酸、ピリジン-2,3-ジカルボン酸、ピリジン-2,4-ジカルボン酸、ピリジン-2,5-ジカルボン酸、ピリジン-2,6-ジカルボン酸、ピリジン-3,4-ジカルボン酸、ピリジン-3,5-ジカルボン酸、ピリダジン-3,4-ジカルボン酸、ピリダジン-3,5-ジカルボン酸、ピリダジン-3,6-ジカルボン酸、ピリダジン-4,5-ジカルボン酸、ピリミジン-2,4-ジカルボン酸、ピリミジン-2,5-ジカルボン酸、ピリミジン-4,5-ジカルボン酸、ピリミジン-4,6-ジカルボン酸、ピラジン-2,3-ジカルボン酸、ピラジン-2,5-ジカルボン酸、ピリジン-2,6-ジカルボン酸、トリアジン-2,4-ジカルボン酸の2つの酸性基を有する複素環化合物;が好ましい。
テトラメトキシシラン、テトラエトキシシラン、テトラ-n-プロポキシシラン、テトラ-i-プロポキシシラン、テトラ-n-ブトキシシランなどのテトラアルコキシシラン類、
メチルトリメトキシシラン、メチルトリエトキシシラン、エチルトリメトキシシラン、エチルトリエトキシシラン、n-プロピルトリメトキシシラン、n-プロピルトリエトキシシラン、i-プロピルトリメトキシシラン、i-プロピルトリエトキシシラン、n-ブチルトリメトキシシラン、n-ブチルトリエトキシシラン、n-ペンチルトリメトキシシラン、n-ヘキシルトリメトキシシラン、n-ヘプチルトリメトキシシラン、n-オクチルトリメトキシシラン、n-デシルトリメトキシシラン、p-スチリルトリメトキシシラン、ビニルトリメトキシシラン、ビニルトリエトキシシラン、シクロヘキシルトリメトキシシラン、シクロヘキシルトリメトキシシラン、シクロヘキシルトリエトキシシラン、フェニルトリメトキシシラン、フェニルトリエトキシシラン、3-クロロプロピルトリメトキシシラン、3-クロロプロピルトリエトキシシラン、3,3,3-トリフルオロプロピルトリメトキシシラン、3,3,3-トリフルオロプロピルトリエトキシシラン、3-アミノプロピルトリメトキシシラン、3-アミノプロピルトリエトキシシラン、N-2-(アミノエチル)-3-アミノプロピルトリメトキシシラン、N-フェニル-3-アミノプロピルトリメトキシシラン、2-ヒドロキシエチルトリメトキシシラン、2-ヒドロキシエチルトリエトキシシラン、2-ヒドロキシプロピルトリメトキシシラン、2-ヒドロキシプロピルトリエトキシシラン、3-ヒドロキシプロピルトリメトキシシラン、3-ヒドロキシプロピルトリエトキシシラン、3-メルカプトプロピルトリメトキシシラン、3-メルカプトプロピルトリエトキシシラン、3-イソシアナートプロピルトリメトキシシラン、3-イソシアナートプロピルトリエトキシシラン、3-グリシドキシプロピルトリメトキシシラン、3-グリシドキシプロピルトリエトキシシラン、2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン、2-(3,4-エポキシシクロヘキシル)エチルトリエトキシシラン、3-(メタ)アクリルオキシプロピルトリメトキシシラン、3-(メタ)アクリルオキシプロピルトリエトキシシラン、3-ウレイドプロピルトリメトキシシラン、3-ウレイドプロピルトリエトキシシラン、3-エチル(トリメトキシシリルプロポキシメチル)オキセタン、3-エチル(トリエトキシシリルプロポキシメチル)オキセタン、3-トリエトキシシリル-N-(1,3-ジメチル-ブチリデン)プロピルアミン、ビス(トリエトキシシリルプロピル)テトラスルフィドなどのトリアルコキシシラン類、
ジメチルジメトキシシラン、ジメチルジエトキシシラン、ジエチルジメトキシシラン、ジエチルジエトキシシラン、ジ-n-プロピルジメトキシシラン、ジ-n-プロピルジエトキシシラン、ジ-i-プロピルジメトキシシラン、ジ-i-プロピルジエトキシシラン、ジ-n-ブチルジメトキシシラン、ジ-n-ペンチルジメトキシシラン、ジ-n-ペンチルジエトキシシラン、ジ-n-ヘキシルジメトキシシラン、ジ-n-ヘキシルジエトキシシラン、ジ-n-へプチルジメトキシシラン、ジ-n-ヘプチルジエトキシシラン、ジ-n-オクチルジメトキシシラン、ジ-n-オクチルジエトキシシラン、ジ-n-シクロヘキシルジメトキシシラン、ジ-n-シクロヘキシルジエトキシシラン、ジフェニルジメトキシシラン、ジフェニルジエトキシシラン、3-グリシドキシプロピルメチルジエトキシシラン、3-メタクリルオキシプロピルメチルジメトキシシラン、3-アクリルオキシプロピルメチルジメトキシシラン、3-メタクリルオキシプロピルメチルジエトキシシラン、3-アクリルオキシプロピルメチルジエトキシシラン、N-2-(アミノエチル)-3-アミノプロピルメチルジメトキシシランなどのジアルコキシシラン類の他、
メチルトリアセチルオキシシラン、ジメチルジアセチルオキシシラン、商品名X-12-414、KBP-44(信越化学工業株式会社製)、217FLAKE、220FLAKE、233FLAKE、z6018(東レダウコーニング株式会社製)等のケイ素原子含有化合物;
(アセトアルコキシアルミウムジイソプロピレート)等のアルミニウム原子含有化合物;
(テトラノルマルプロポキシジルコニウム、テトラノルマルブトキシジルコニウム、ジルコニウムテトラアセチルアセトネート、ジルコニウムトリブトキシアセチルアセトネート、ジルコニウムものブトキシアセチルアセトネートビス(エチルアセトアセテート)、ジルコニウムジブトキシビス(エチルアセトアセテート)、ジルコニウムテトラアセチルアセトネート、ジルコニウムトリブトキシステアレート)等のジルコニウム原子含有化合物;が挙げられる。
混合の方法は特に限定されないが、感放射線性樹脂組成物を構成する各成分を溶剤に溶解又は分散して得られる溶液又は分散液を混合するのが好ましい。これにより、感放射線性樹脂組成物は、溶液又は分散液の形態で得られる。
次いで、本発明の半導体素子基板について、説明する。本発明の半導体素子基板は、上述した感放射線性樹脂組成物からなる樹脂膜を有し、該樹脂膜は、半導体素子基板に実装されている半導体素子表面、又は半導体素子に含まれる半導体層と接触して形成される。
潜像パターンを有する樹脂膜に現像液を接触させる方法としては、例えば、パドル法、スプレー法、ディッピング法等の方法が用いられる。現像は、通常、0~100℃、好ましくは5~55℃、より好ましくは10~30℃の範囲で、通常、30~180秒間の範囲で適宜選択される。
さらに、必要に応じて、感放射線化合物(C)を失活させるために、半導体素子基板全面に、活性放射線を照射することもできる。活性放射線の照射には、上記潜像パターンの形成に例示した方法を利用できる。照射と同時に、又は照射後に樹脂膜を加熱してもよい。加熱方法としては、例えば、半導体素子基板をホットプレートやオーブン内で加熱する方法が挙げられる。温度は、通常、100~300℃、好ましくは120~200℃の範囲である。
特に、本発明の半導体素子基板が、アクティブマトリックス基板である場合には、ゲート電極の電圧の増加に対して、ソース電極/ドレイン電極間の電流が直線的に立ち上がるという特性を備えるものとすることができ、しかも高温高湿環境下に長時間保持しても、リーク電流特性や閾値電圧が変化せず、そのため、アクティブマトリックス基板を、長寿命かつ低消費電力であり、さらには高コントラストなものとすることができる。
なお、各特性の定義及び評価方法は、以下のとおりである。
感放射線性樹脂組成物をシリコンウェハ上にスピンコートした後、ホットプレートを用いて100℃で2分間プリベークして、2.5μm厚の樹脂膜を形成した。次いで、この樹脂膜に、5μm×5μmのホールパターンのマスクを介して、365nmにおける光強度が5mW/cm2である紫外線を、40秒間、空気中で照射した。次いで、0.4重量%テトラメチルアンモニウムヒドロキシド水溶液を用いて、23℃、60秒間現像処理を行った後、超純水で30秒間リンスしてコンタクトホールのパターンを形成した。
そして、このようにして得られたコンタクトホールのパターンを有する樹脂膜について、走査型電子顕微鏡(SEM)を用いて、コンタクトホール内における、溶解残渣の有無、及び未露光部表面の荒れの有無の評価を行った。溶解残渣及び未露光部表面の荒れのいずれも観測されない方が、現像によるパターン形成性に優れるため、好ましい。
上記と同様にして得られたコンタクトホールのパターンを有する樹脂膜に、365nmにおける光強度が5mW/cm2である紫外線を、90秒間、空気中で照射し、次いで、オーブンを用いて230℃、1時間ポストベークを行なった。そして、得られたポストベーク後の樹脂膜について、光学顕微鏡により、コンタクトホールを観察し、以下の基準に従って、焼成時ホール状態の評価を行った。
○:コンタクトホールの埋没、及びコンタクトホールの形状の歪みが観察されない。
×:コンタクトホールが埋まっている、又はコンタクトホールの形状が歪んでいる。
また、上記とは別に、得られたポストベーク後の樹脂膜について、鉛筆硬度を測定することにより、焼成時膜硬度の評価を行った。焼成時膜硬度は高いほど好ましい。
感放射線性樹脂組成物をシリコンウェハ上にスピンコートした後、ホットプレートを用いて100℃で2分間プリベークして、0.12μm厚の樹脂膜を形成した。次いで、樹脂膜全面に高圧水銀灯を用いて光を照射し、樹脂膜中に残存する分解していない感放射線化合物を分解させた。次いで、窒素雰囲気中において230℃で1時間ホットプレートで加熱することにより、樹脂膜が形成されシリコンウェハからなる試験用試料を得た。
そして、得られた試験用試料を用いて、JIS C6481に準じて、10KHz(室温)で、樹脂膜の比誘電率を測定した。比誘電率は低いほど好ましい。
上記比誘電率の評価と同様にして、試験用試料を作製し、得られた試験用試料を用いて、樹脂膜の絶縁破壊電圧を測定した。なお、本実施例においては、樹脂膜に、直流電圧を50V/分で印加し、漏れ電流が1×10-6mA/cm3以上となったときの電圧を絶縁破壊電圧とした。絶縁破壊電圧は高いほど好ましい。
上記比誘電率の評価と同様にして、試験用試料を作製し、得られた試験用試料について、分光光度計(日本分光株式会社製、紫外可視分光光度計V-560)を用いて、波長400nmでの透過率の測定を行うことで、樹脂膜の透明性を評価した。
アクティブマトリックス基板のソース電極とドレイン電極の間に20Vの電圧を印加し、ゲート電極に印加する電圧を-20~+30Vに変化させて、ソース電極とドレイン電極との間に流れる電流を、マニュアルプローバー及び半導体パラメータアナライザー(Agilent社製、4156C)を用いて測定することで、リーク電流および閾値電圧の測定を行なった。なお、測定は、初期状態(高温、高湿環境に保持する前)のアクティブマトリックス基板、及び50℃、80%RHの高温、高湿環境に100時間保持した後のアクティブマトリックス基板のそれぞれについて行なった。
N-(2-エチルヘキシル)-ビシクロ[2.2.1]ヘプト-5-エン-2,3-ジカルボキシイミド(NEHI)40モル%、および8-ヒドロキシカルボニルテトラシクロ[4.4.0.12,5.17,10]ドデカ-3-エン(TCDC)60モル%からなる単量体混合物100部、1,5-ヘキサジエン2部、(1,3-ジメシチルイミダゾリン-2-イリデン)(トリシクロヘキシルホスフィン)ベンジリデンルテニウムクロリド(Org.Lett.,第1巻,953頁,1999年 に記載された方法で合成した)0.02部、及びジエチレングリコールメチルエチルエーテル400部を、窒素置換したガラス製耐圧反応器に仕込み、攪拌しつつ80℃にて4時間反応させて重合反応液を得た。
N-(2-エチルヘキシル)-ビシクロ[2.2.1]ヘプト-5-エン-2,3-ジカルボキシイミド(NEHI)の配合割合を50モル%、8-ヒドロキシカルボニルテトラシクロ[4.4.0.12,5.17,10]ドデカ-3-エン(TCDC)の配合割合を50モル%に変更した以外は、合成例1と同様にして、重合体(II)を得た。得られた重合体(II)の重合転化率は99.5%、重量平均分子量は5670、数平均分子量は3520、分子量分布は1.61、水素添加率は、99.9%であった。
<感放射線性樹脂組成物の調製>
合成例1で得られた重合体(I)100部、溶剤としてのジエチレングリコールエチルメチルエーテル(EDM)550部、架橋剤(B)としてのN,N,N’,N’,N’’,N’’-(ヘキサアルコキシアルキル)メラミン系架橋剤(商品名「サイメル370」、サイテックインダストリーズ社製)15部、同じく架橋剤(B)としての2,2-ビス(ヒドロキシメチル)1-ブタノールの1,2-エポキシ-4-(2-オキシラニル)シクロヘキサン付加物(商品名「EHPE3150」、ダイセル化学工業社製、シクロヘキサン骨格及び末端エポキシ基を有する15官能性の脂環式エポキシ樹脂)10部、感放射線化合物(C)としての1,1,3-トリス(2,5-ジメチル-4-ヒドロキシフェニル)-3-フェニルプロパン(1モル)と1,2-ナフトキノンジアジド-5-スルホン酸クロライド(1.9モル)との縮合物30部、及び、カップリング剤としての(3-グリシジルオキシプロピル)トリメトキシシラン(商品名「SH6040」、東レ・ダウコーニング社製)40部を混合し、溶解させた後、孔径0.45μmのポリテトラフルオロエチレン製フィルターでろ過して感放射線性樹脂組成物を調製した。
ガラス基板(商品名「コーニング1737」、コーニング社製)上に、スパッタリング装置を用いて、クロムを200nmの膜圧で形成し、フォトリソグラフィによリパターニングを行い、ゲート電極、ゲート信号線及びゲート端子部を形成した。次いで、CVD装置により、ゲート電極とゲート電極を覆って、ゲート絶縁膜となるシリコン窒化物膜を450nmの厚さ、半導体層となるa-Si層(アモルファスシリコン層)を250nmの厚さ、オーミックコンタクト層となるn+Si層を50nmの厚さで連続形成し、n+Si層とa-Si層をアイランド状にパターニングした。さらに、ゲート絶縁膜とn+Si層上にスパッタリング装置で、クロムを200nmの膜厚で形成し、フォトリソグラフィにより、ソース電極、ソース信号線、ドレイン電極、及びデータ端子部を形成し、ソース電極とドレイン電極の間の不要なn+Si層を除去してバックチャネルを形成し、ガラス基板上に複数の薄膜トランジスタが形成されたアレイ基板を得た。
合成例1で得られた重合体(I)100部、溶剤としてのジエチレングリコールエチルメチルエーテル(EDM)550部、架橋剤(B)としてのN,N,N’,N’,N’’,N’’-(ヘキサアルコキシアルキル)メラミン系架橋剤(商品名「サイメル232」、サイテックインダストリーズ社製)30部、同じく架橋剤(B)としてのエポキシ化ブタンテトラカルボン酸テトラキス(3-シクロヘキセニルメチル)修飾ε-カプロラクトン(商品名「エポリードGT401」、ダイセル化学工業社製、脂肪族環状4官能性のエポキシ樹脂)10部、感放射線化合物(C)としての1,1,3-トリス(2,5-ジメチル-4-ヒドロキシフェニル)-3-フェニルプロパン(1モル)と1,2-ナフトキノンジアジド-5-スルホン酸クロライド(1.9モル)との縮合物30部、及び酸性化合物としての2,4,6-トリメルカプト-s-トリアジン(商品名「Zisnet-F」、三共化成社製)5部を混合し、溶解させた後、孔径0.45μmのポリテトラフルオロエチレン製フィルターでろ過して感放射線性樹脂組成物を調製した。また、得られた感放射線性樹脂組成物を用いて、実施例1と同様にして、アクティブマトリックス基板を得た。
そして、上記にて得られた感放射線性樹脂組成物及びアクティブマトリックス基板を用いて、実施例1と同様にして各評価を行った。結果を表1に示す。
合成例2で得られた重合体(II)100部、溶剤としてのジエチレングリコールエチルメチルエーテル(EDM)550部、架橋剤(B)としてのN,N,N’,N’,N’’,N’’-(ヘキサアルコキシアルキル)メラミン系架橋剤(商品名「サイメル370」、サイテックインダストリーズ社製)40部、同じく架橋剤(B)としてのエポキシ化ブタンテトラカルボン酸テトラキス(3-シクロヘキセニルメチル)修飾ε-カプロラクトン(商品名「エポリードGT401」、ダイセル化学工業社製、脂肪族環状4官能性のエポキシ樹脂)10部、感放射線化合物(C)としての1,1,3-トリス(2,5-ジメチル-4-ヒドロキシフェニル)-3-フェニルプロパン(1モル)と1,2-ナフトキノンジアジド-5-スルホン酸クロライド(1.9モル)との縮合物30部、酸性化合物としてのピラジン-2,3-ジカルボン酸1部、及びカップリング剤としての(3-グリシジルオキシプロピル)トリメトキシシラン(商品名「SH6040」、東レ・ダウコーニング社製)10部を混合し、溶解させた後、孔径0.45μmのポリテトラフルオロエチレン製フィルターでろ過して感放射線性樹脂組成物を調製した。また、得られた感放射線性樹脂組成物を用いて、実施例1と同様にして、アクティブマトリックス基板を得た。
そして、上記にて得られた感放射線性樹脂組成物及びアクティブマトリックス基板を用いて、実施例1と同様にして各評価を行った。結果を表1に示す。
合成例1で得られた重合体(I)100部の代わりに、シクロオレフィン重合体(商品名「ARTON (F5023)」、JSR社製)100部を用い、ジエチレングリコールエチルメチルエーテル(EDM)550部の代わりに、メシチレン900部を用いた以外は、実施例1と同様にして、感放射線性樹脂組成物を調製した。また、得られた感放射線性樹脂組成物を用いて、実施例1と同様にして、アクティブマトリックス基板を得た。
そして、上記にて得られた感放射線性樹脂組成物及びアクティブマトリックス基板を用いて、実施例1と同様にして各評価を行った。結果を表1に示す。
比較例2においては、感放射線性樹脂組成物として、アクリル樹脂を含有する感放射線性樹脂組成物(商品名「オプトマー (PC403)」、JSR社製)を準備した。また、準備した感放射線性樹脂組成物を用いて、実施例1と同様にして、アクティブマトリックス基板を得た。
そして、上記にて準備したアクリル樹脂を含有する感放射線性樹脂組成物及び上記にて得られたアクティブマトリックス基板を用いて、実施例1と同様にして各評価を行った。結果を表1に示す。
比較例3においては、感放射線性樹脂組成物として、ポリイミド樹脂を含有する感放射線性樹脂組成物(商品名「フォトニースPW-2100」、東レ社製)を準備した。また、準備した感放射線性樹脂組成物を用いて、実施例1と同様にして、アクティブマトリックス基板を得た。
そして、上記にて準備したポリイミド樹脂を含有する感放射線性樹脂組成物及び上記にて得られたアクティブマトリックス基板を用いて、実施例1と同様にして各評価を行った。結果を表1に示す。
これらの結果より、本発明所定の感放射線性樹脂組成物を用いて得られる樹脂膜は、半導体素子基板、特に、アクティブマトリックス基板の樹脂膜として好適であるといえる。
また、比較例2,3の結果より、感放射線性樹脂組成物に含有させる樹脂として、アクリル樹脂やポリイミド樹脂を用いた場合には、絶縁破壊電圧が低く、また、リーク電流も大きくなる結果となった。なお、比較例2,3においては、リーク電流が大き過ぎたため、高温、高湿条件保持後のリーク電流、及び閾値電圧については、測定不能であった。
実施例4においては、実施例1において調製した感放射線性樹脂組成物からなる封止膜を有する有機EL素子基板を、以下の方法により、作製した。
すなわち、まず、表面にパターニングされたクロム電極層12を有する25mm×75mm×1.1mmサイズのガラス板上に、厚さ1.0μmの遮光膜を介して、膜厚3.5μmの逆テーパ型樹脂隔壁層が設けられた構造を有した有機EL素子用の基板を準備した。そして、該基板を、市販の蒸着装置[日本真空技術社製]の基板ホルダーに固定すると共に、モリブデン製抵抗加熱ボートにN,N'-ビス(3-メチルフェニル)-N,N'-ジフェニル-[1,1'-ビフェニル]-4,4'-ジアミン(以下、TPDと略記する)200mgを入れ、また別のモリブデン製抵抗加熱ボートに4,4'-ビス(2,2'-ジフェニルビニル)ビフェニル(以下、DPVBiと略記する)200mgを入れたのち、真空槽を1×10-4Paまで減圧した。
Claims (10)
- 前記重合体(A)中における、前記一般式(1)で表される単量体の単位(a1)の含有割合が、10~90モル%である請求項1に記載の半導体素子基板。
- 前記重合体(A)が、前記一般式(1)で表される単量体と共重合可能な単量体の単位(a2)をさらに含む請求項1又は2に記載の半導体素子基板。
- 前記共重合可能な単量体の単位(a2)が、プロトン性極性基を有する環状オレフィン単量体の単位である請求項3に記載の半導体素子基板。
- 前記プロトン性極性基を有する環状オレフィン単量体の単位が、カルボキシ基含有環状オレフィン単量体の単位である請求項4に記載の半導体素子基板。
- 前記重合体(A)が、前記一般式(1)で表される単量体と、前記プロトン性極性基を有する環状オレフィン単量体と、を開環共重合してなる重合体である請求項4又は5に記載の半導体素子基板。
- 前記重合体(A)が、前記一般式(1)で表される単量体と、前記プロトン性極性基を有する環状オレフィン単量体と、を開環共重合してなる重合体の水素添加物である請求項6に記載の半導体素子基板。
- 前記架橋剤(B)が、アミノ基含有化合物と、エポキシ基含有化合物とを併用してなるものである請求項1~7のいずれかに記載の半導体素子基板。
- 前記エポキシ基含有化合物が、脂環構造を有するエポキシ基含有化合物である請求項8に記載の半導体素子基板。
- アクティブマトリックス基板又は有機EL素子基板である請求項1~9のいずれかに記載の半導体素子基板。
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TW201129858A (en) | 2011-09-01 |
CN102668046B (zh) | 2014-12-10 |
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JPWO2011040324A1 (ja) | 2013-02-28 |
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