WO2015040916A1 - 導電性ペーストおよびセラミック電子部品 - Google Patents
導電性ペーストおよびセラミック電子部品 Download PDFInfo
- Publication number
- WO2015040916A1 WO2015040916A1 PCT/JP2014/066770 JP2014066770W WO2015040916A1 WO 2015040916 A1 WO2015040916 A1 WO 2015040916A1 JP 2014066770 W JP2014066770 W JP 2014066770W WO 2015040916 A1 WO2015040916 A1 WO 2015040916A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- organic solvent
- conductive paste
- acetate
- binder resin
- cellulose acetate
- Prior art date
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- 239000000919 ceramic Substances 0.000 title claims abstract description 57
- 239000003960 organic solvent Substances 0.000 claims abstract description 115
- 229920006217 cellulose acetate butyrate Polymers 0.000 claims abstract description 48
- 239000011347 resin Substances 0.000 claims abstract description 36
- 229920005989 resin Polymers 0.000 claims abstract description 36
- 239000011230 binding agent Substances 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 32
- 239000002904 solvent Substances 0.000 claims abstract description 20
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- AOGQPLXWSUTHQB-UHFFFAOYSA-N hexyl acetate Chemical compound CCCCCCOC(C)=O AOGQPLXWSUTHQB-UHFFFAOYSA-N 0.000 claims description 12
- 239000011164 primary particle Substances 0.000 claims description 11
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- XMGQYMWWDOXHJM-JTQLQIEISA-N (+)-α-limonene Chemical compound CC(=C)[C@@H]1CCC(C)=CC1 XMGQYMWWDOXHJM-JTQLQIEISA-N 0.000 claims description 6
- GRWFGVWFFZKLTI-IUCAKERBSA-N (-)-α-pinene Chemical compound CC1=CC[C@@H]2C(C)(C)[C@H]1C2 GRWFGVWFFZKLTI-IUCAKERBSA-N 0.000 claims description 6
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 claims description 6
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 6
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 claims description 6
- QUKGYYKBILRGFE-UHFFFAOYSA-N benzyl acetate Chemical compound CC(=O)OCC1=CC=CC=C1 QUKGYYKBILRGFE-UHFFFAOYSA-N 0.000 claims description 6
- XUPYJHCZDLZNFP-UHFFFAOYSA-N butyl butanoate Chemical compound CCCCOC(=O)CCC XUPYJHCZDLZNFP-UHFFFAOYSA-N 0.000 claims description 6
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 6
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 claims description 6
- RXTNIJMLAQNTEG-UHFFFAOYSA-N hexan-2-yl acetate Chemical compound CCCCC(C)OC(C)=O RXTNIJMLAQNTEG-UHFFFAOYSA-N 0.000 claims description 6
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 6
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 claims description 6
- YKYONYBAUNKHLG-UHFFFAOYSA-N propyl acetate Chemical compound CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims description 6
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 claims description 6
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 claims description 5
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 229940116411 terpineol Drugs 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000001716 (4-methyl-1-propan-2-yl-1-cyclohex-2-enyl) acetate Substances 0.000 claims description 3
- HBNHCGDYYBMKJN-UHFFFAOYSA-N 2-(4-methylcyclohexyl)propan-2-yl acetate Chemical compound CC1CCC(C(C)(C)OC(C)=O)CC1 HBNHCGDYYBMKJN-UHFFFAOYSA-N 0.000 claims description 3
- HQLKZWRSOHTERR-UHFFFAOYSA-N 2-Ethylbutyl acetate Chemical compound CCC(CC)COC(C)=O HQLKZWRSOHTERR-UHFFFAOYSA-N 0.000 claims description 3
- PTTPXKJBFFKCEK-UHFFFAOYSA-N 2-Methyl-4-heptanone Chemical compound CC(C)CC(=O)CC(C)C PTTPXKJBFFKCEK-UHFFFAOYSA-N 0.000 claims description 3
- WOYWLLHHWAMFCB-UHFFFAOYSA-N 2-ethylhexyl acetate Chemical compound CCCCC(CC)COC(C)=O WOYWLLHHWAMFCB-UHFFFAOYSA-N 0.000 claims description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 3
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 3
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- ZCZSIDMEHXZRLG-UHFFFAOYSA-N acetic acid heptyl ester Natural products CCCCCCCOC(C)=O ZCZSIDMEHXZRLG-UHFFFAOYSA-N 0.000 claims description 3
- 150000001298 alcohols Chemical class 0.000 claims description 3
- IGODOXYLBBXFDW-UHFFFAOYSA-N alpha-Terpinyl acetate Chemical compound CC(=O)OC(C)(C)C1CCC(C)=CC1 IGODOXYLBBXFDW-UHFFFAOYSA-N 0.000 claims description 3
- MVNCAPSFBDBCGF-UHFFFAOYSA-N alpha-pinene Natural products CC1=CCC23C1CC2C3(C)C MVNCAPSFBDBCGF-UHFFFAOYSA-N 0.000 claims description 3
- 229940007550 benzyl acetate Drugs 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 150000002170 ethers Chemical class 0.000 claims description 3
- 239000001087 glyceryl triacetate Substances 0.000 claims description 3
- 235000013773 glyceryl triacetate Nutrition 0.000 claims description 3
- JPXGPRBLTIYFQG-UHFFFAOYSA-N heptan-4-yl acetate Chemical compound CCCC(CCC)OC(C)=O JPXGPRBLTIYFQG-UHFFFAOYSA-N 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 claims description 3
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 claims description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 3
- DLRJIFUOBPOJNS-UHFFFAOYSA-N phenetole Chemical compound CCOC1=CC=CC=C1 DLRJIFUOBPOJNS-UHFFFAOYSA-N 0.000 claims description 3
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims description 3
- GRWFGVWFFZKLTI-UHFFFAOYSA-N rac-alpha-Pinene Natural products CC1=CCC2C(C)(C)C1C2 GRWFGVWFFZKLTI-UHFFFAOYSA-N 0.000 claims description 3
- 229960002622 triacetin Drugs 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- UODXCYZDMHPIJE-UHFFFAOYSA-N menthanol Chemical compound CC1CCC(C(C)(C)O)CC1 UODXCYZDMHPIJE-UHFFFAOYSA-N 0.000 claims 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims 1
- 238000007639 printing Methods 0.000 abstract description 15
- 239000010410 layer Substances 0.000 description 33
- 230000000052 comparative effect Effects 0.000 description 28
- 238000004519 manufacturing process Methods 0.000 description 18
- 230000007547 defect Effects 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 239000003985 ceramic capacitor Substances 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- 239000002923 metal particle Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- XAOGXQMKWQFZEM-UHFFFAOYSA-N isoamyl propanoate Chemical compound CCC(=O)OCCC(C)C XAOGXQMKWQFZEM-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910018100 Ni-Sn Inorganic materials 0.000 description 1
- 229910018532 Ni—Sn Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/10—Esters of organic acids, i.e. acylates
- C08L1/14—Mixed esters, e.g. cellulose acetate-butyrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/12—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/008—Selection of materials
- H01G4/0085—Fried electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0862—Nickel
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Definitions
- the present invention relates to a conductive paste and a ceramic electronic component.
- Patent Document 1 describes a semiconductor electrode containing at least Ag powder, In powder, and cellulose acetate butyrate resin (binder resin), and preferably Ag powder / In powder of 1 to 4 by weight ratio. .
- Patent Document 1 describes a method for manufacturing a semiconductor electrode, which includes a step of applying a conductive paste containing each of the above components onto a semiconductor, heating the paste at a temperature higher than the melting point of In, and drying.
- Patent Document 1 The semiconductor electrode described in Patent Document 1 is excellent in electrical continuity with a semiconductor, rich in flexibility, and has a long life and high reliability.
- a conductive paste containing cellulose acetate butyrate resin as the main component of the binder may not be transferred to the semiconductor sheet to be transferred, resulting in printing defects.
- This printing defect is caused by a decrease in fluidity (higher viscosity) of the conductive paste. And it is estimated that the fall of the fluidity
- an object of the present invention is to provide a conductive paste and a ceramic electronic component in which the fluidity of the paste is properly maintained and excellent printability is obtained.
- the present invention relates to a conductive paste in which an organic solvent B is added to a vehicle containing Ni powder, a binder resin component, and an organic solvent A, and (a) the Ni powder has an average primary particle size of 30 to 400 nm, (b) the binder resin component is cellulose acetate butyrate, (c) the organic solvent A is a solvent having a ⁇ value of 11.5 or less with respect to the cellulose acetate butyrate of the binder resin component, d) Organic solvent B is a solvent having a ⁇ value in the range of 11.5 to 25.0 with respect to cellulose acetate butyrate as the binder resin component. (e) The abundance ratio of organic solvent B is The conductive paste is characterized by being 5.0 to 40.0% by weight of the total organic solvent with the organic solvent B.
- the average primary particle refers to a particle having the smallest average particle diameter constituting the metal powder.
- the ⁇ value is a measure of the solubility of the two components, and means the difference between the solubility parameter values (also referred to as ⁇ value or SP value) of the two solution components.
- the two solution components have the property that the smaller the ⁇ value, the greater the solubility (easy to dissolve), and the larger the ⁇ value, the smaller the solubility (hard to dissolve).
- the average primary particle size of the Ni powder is 30 to 400 nm and fine particles (filler)
- the structural viscosity formed by the binder resin component and the Ni powder is strongly expressed. That is, the polymer entanglement of the binder resin component and the structure of the interaction between the Ni metal particles are broken, fluidity is created and the viscosity is lowered.
- organic solvent A is a solvent having a ⁇ value of 11.5 or less with respect to cellulose acetate butyrate as a binder resin component, it becomes a good solvent for cellulose acetate butyrate and a vehicle is produced.
- organic solvent B is added.
- Organic solvent B is a solvent having a ⁇ value in the range of 11.5 to 25.0 with respect to cellulose acetate butyrate as a binder resin component, and therefore becomes a poor solvent for cellulose acetate butyrate, and the fluidity of the paste is low. Secured.
- a good solvent means a solvent having a high solubility in a certain substance.
- a poor solvent means a solvent with low solubility with respect to a certain substance.
- the abundance ratio of the organic solvent B is less than 5.0% by weight of the total organic solvent of the organic solvent A and the organic solvent B, it is difficult to obtain a good printed coating film. Moreover, when the abundance ratio of the organic solvent B exceeds 40.0% by weight of the total organic solvent of the organic solvent A and the organic solvent B, Ni metal particles in the conductive paste precipitate and separate.
- the present invention is a conductive paste characterized in that the organic solvent A is an organic solvent selected from at least one of alcohols, ethers, esters and ketones.
- the organic solvent A is acetophenone, anisole, 2-ethylbutyl acetate, 2-ethylhexyl acetate, 2-hexyl acetate, n-propyl acetate, n-hexyl acetate, ethyl acetate, butyl acetate, diisobutyl ketone, dihydro At least one of terpineol, dihydroterpineol acetate, terpineol, terpineol acetate, triacetin, phenetol, butyl acetate, butyl butyrate, isopentyl propionate, hexyl acetate, heptyl acetate, benzyl acetate, benzyl alcohol, methyl n-amyl ketone, methyl isobutyl ketone and methyl ethyl ketone It is selected from one.
- the conductive paste is characterized in that the organic solvent B is an organic solvent selected from hydrocarbons.
- the organic solvent B is selected from at least one of ⁇ -pinene, hexane, octane, dodecane, toluene, xylene, cyclohexane, methylcyclohexane and D-limonene.
- the organic solvent A and the organic solvent B are selected from the organic solvent group, it is easy to make a conductive paste.
- the ceramic solid component is further contained in the conductive paste, the ceramic solid component has an ABO 3 perovskite structure, and A is selected from at least one of Ba, Ca, and Sr.
- B is a conductive paste characterized in that it is selected from at least one of Ti and Zr.
- the ceramic solid component functions as a sintering suppression material for Ni powder.
- the present invention is a conductive paste characterized in that the binder resin component cellulose acetate butyrate is a polymer having a weight average molecular weight of 5000 to 650000.
- the weight average molecular weight of the cellulose acetate butyrate as the binder resin component is less than 5000, Ni powder aggregates and the coating film smoothness of the conductive paste deteriorates. Moreover, when the weight average molecular weight of the cellulose acetate butyrate of the binder resin component exceeds 650000, the conductive paste becomes highly viscous and print defects occur.
- the present invention is a ceramic electronic component characterized in that a conductor pattern is formed using the conductive paste described above.
- a conductive electronic pattern in which the paste fluidity is properly maintained and excellent printability is obtained, and the conductive pattern is formed on the ceramic. Can do.
- the ceramic electronic component is, for example, a passive element such as a multilayer ceramic capacitor, a multilayer ceramic inductor, or a multilayer ceramic thermistor, or a multilayer ceramic substrate on which wiring conductors that electrically connect the elements are formed.
- a multilayer ceramic capacitor will be described as an example of a ceramic electronic component.
- the conductive paste contains Ni powder, a binder resin component, an organic solvent A, an organic solvent B, and a ceramic solid component.
- the structural viscosity formed by the binder resin component and the Ni powder is strongly expressed.
- the binder resin component is cellulose acetate butyrate.
- Cellulose acetate butyrate is a polymer having a weight average molecular weight of 5000 to 650000.
- weight average molecular weight of cellulose acetate butyrate is less than 5000, Ni powder aggregates and the coating film smoothness of an electrically conductive paste deteriorates.
- weight average molecular weight of cellulose acetate butyrate exceeds 650000, the conductive paste has a high viscosity and print defects are generated.
- Organic solvent A is a solvent having a ⁇ value of 11.5 or less with respect to cellulose acetate butyrate as a binder resin component.
- the organic solvent A is selected from at least one of alcohols, ethers, esters and ketones.
- the organic solvent A is acetophenone, anisole, 2-ethylbutyl acetate, 2-ethylhexyl acetate, 2-hexyl acetate, n-propyl acetate, n-hexyl acetate, ethyl acetate, butyl acetate, diisobutyl ketone, dihydro At least one of terpineol, dihydroterpineol acetate, terpineol, terpineol acetate, triacetin, phenetol, butyl acetate, butyl butyrate, isopentyl propionate, hexyl acetate, heptyl acetate, benzyl acetate, benzyl alcohol, methyl n-amyl ketone, methyl isobutyl ketone and methyl ethyl ketone It is selected from one.
- Organic solvent B is a solvent having a ⁇ value in the range of 11.5 to 25.0 with cellulose acetate butyrate as a binder resin component.
- the organic solvent B is selected from hydrocarbons.
- the organic solvent B is selected from at least one of ⁇ -pinene, hexane, octane, dodecane, toluene, xylene, cyclohexane, methylcyclohexane and D-limonene.
- the abundance ratio of the organic solvent B is 5.0 to 40.0% by weight of the total organic solvent of the organic solvent A and the organic solvent B.
- the abundance ratio of the organic solvent B is less than 5.0% by weight of the total organic solvent of the organic solvent A and the organic solvent B, the effect of preventing the fluidity of the paste from decreasing is weakened.
- the abundance ratio of the organic solvent B exceeds 40.0% by weight of the total organic solvent of the organic solvent A and the organic solvent B, the Ni metal particles in the conductive paste are precipitated and separated.
- the organic solvent A and the organic solvent B are selected from the organic solvent group, it is easy to make a conductive paste.
- the ceramic solid component has a perovskite structure of ABO 3 , A is selected from at least one of Ba, Ca and Sr, and B is selected from at least one of Ti and Zr.
- the ceramic solid component functions as a sintering suppression material for Ni.
- Step S1 of FIG. 1 a predetermined amount of Ni powder, cellulose acetate butyrate as a binder resin component, organic solvent A, and ceramic powder as a sintering suppression component are weighed.
- step S2 the respective materials are agitated to produce a first mill base.
- the organic solvent A is a solvent having a ⁇ value of 11.5 or less with respect to cellulose acetate butyrate as a binder resin component, it is a good solvent for cellulose acetate butyrate. Accordingly, cellulose acetate butyrate floats in the organic solvent A, and a vehicle is produced. If necessary, an arbitrary amount of dispersant may be kneaded.
- step S3 the first mill base is kneaded by a dispersion method such as a three-roll mill to uniformly disperse the Ni powder, thereby producing the second mill base.
- step S4 a predetermined amount of cellulose acetate butyrate, organic solvent A and organic solvent B are weighed on the second mill base.
- step S5 the respective materials are mixed and stirred in the second mill base, and a conductive paste is produced while adjusting the viscosity. At this time, an arbitrary amount of additives may be added.
- Organic solvent B is a poor solvent for cellulose acetate butyrate because it has a ⁇ value in the range of 11.5 to 25.0 with cellulose acetate butyrate as the binder resin component. Therefore, when the organic solvent B is mixed, the cellulose acetate butyrate escapes from the organic solvent B and moves to the surface of the Ni metal particles. That is, the Ni metal particles are in a state where the cellulose acetate butyrate adsorption amount is large. The adsorbed cellulose acetate butyrate produces fluidity by interaction such as crosslinking. For this reason, even if cellulose acetate butyrate is used, the fluidity of the paste can be ensured.
- the average primary particle diameter of the Ni powder is fine particles (filler) of 30 to 400 nm, the binder resin component adsorption surface area of the Ni metal particles is increased, and the effect of decreasing the viscosity is remarkably exhibited.
- FIG. 2 is a vertical cross-sectional view in the length direction showing a multilayer ceramic capacitor 1 in which internal electrodes are formed using the conductive paste described above.
- the present invention can also be applied to LC filters, LC modules, and the like.
- the multilayer ceramic capacitor 1 includes a ceramic body 10 and external electrodes 20 and 22 formed on the left and right ends of the ceramic body 10.
- the ceramic body 10 is vertically moved so as to sandwich the plurality of inner layer ceramic layers 11, the plurality of inner electrodes 12 and 13 disposed at the interfaces between the plurality of inner layer ceramic layers 11, and the plurality of inner layer ceramic layers 11.
- the outer layer ceramic layers 15a and 15b are arranged in a rectangular parallelepiped structure.
- the internal electrode 12 and the internal electrode 13 are opposed to each other through the inner ceramic layer 11 made of a dielectric material in the thickness direction. Capacitance is formed in a portion where the internal electrode 12 and the internal electrode 13 are opposed to each other with the inner ceramic layer 11 interposed therebetween.
- the internal electrodes 12 and 13 are produced using the conductive paste described above.
- the left end of the internal electrode 12 is drawn out to the left end face of the ceramic body 10 and is electrically connected to the external electrode 20.
- the right end of the internal electrode 13 is drawn out to the right end surface of the ceramic body 10 and is electrically connected to the external electrode 22.
- the internal electrodes 12 and 13 are manufactured using a conductive paste that hardly deteriorates the fluidity of the above-described paste and obtains excellent printability. Can be obtained.
- An organic solvent such as toluene and echinene is added to the dielectric powder and mixed. Thereafter, a binder and a plasticizer are further added and mixed to prepare a slurry. This slurry is formed into a ceramic green sheet for an inner layer or an outer layer by a doctor blade method.
- the conductive paste film (raw conductor pattern) that becomes the internal electrodes 12 and 13 is printed on the ceramic green sheet for the inner layer by a method such as screen printing, ink jet printing, or gravure printing. It is formed.
- a plurality of the ceramic green sheets for the inner layer on which the conductive paste film is formed are laminated so that the drawing directions of the ends of the conductive paste film are alternated. Further, a plurality of ceramic green sheets for outer layers are stacked one above the other so as to sandwich the stacked ceramic green sheets for inner layers, and are pressed. In this way, the ceramic body 10 which is an unfired laminated body to be the body of the multilayer ceramic capacitor 1 is formed.
- the green ceramic body 10 is cut into a predetermined product size.
- the cut unfired ceramic body 10 is fired to obtain a sintered ceramic body 10.
- the inner layer and outer layer ceramic green sheets and the conductive paste film are fired at the same time, the inner layer ceramic green sheet becomes the inner layer ceramic layer 11, and the outer layer ceramic green sheet becomes the outer layer ceramic layers 15a and 15b.
- the film becomes the internal electrodes 12 and 13.
- Example and Comparative Example Characteristic Evaluation Method Print Characteristics
- the conductive paste produced by the production method shown in FIG. 1 was printed on the ceramic green sheet for inner layer (thickness: 10 ⁇ m) of the multilayer ceramic capacitor 1 by screen printing. Then, the ceramic green sheet for inner layers in which the conductive paste film
- the printed coating surface of the ceramic green sheet for the inner layer (sheet surface on the side where the conductive paste film is formed) is observed with an optical microscope, and printing defects (where the conductive paste film is not formed due to rubbing) ) was evaluated.
- printing defects where the conductive paste film is not formed due to rubbing
- the conductive paste produced by the production method shown in FIG. 1 was put in a storage container and left at room temperature for 30 days. Then, the specific gravity of the upper layer part of the electrically conductive paste put into the container and the specific gravity of the lower layer part were measured by the specific gravity bottle method. When the specific gravity difference of the conductive paste was 0.10 or more, the sedimentation separation was determined to be “existent” and “x”. When the specific gravity difference of the conductive paste was less than 0.10, it was determined as “ ⁇ ” because there was no sedimentation separation.
- the conductive paste produced by the manufacturing method shown in FIG. 1 was printed on a glass substrate by a screen printing method so as to have a film thickness of 10 ⁇ m. Thereafter, the glass substrate was dried in a drying furnace at a predetermined temperature and time to produce a glass substrate having a conductive paste film formed on the surface.
- samples 1 to 10 of the first example ⁇ between cellulose acetate butyrate (described as “CAB” in Table 1) and organic solvent A is 1.0, 5.1, 7.0, 10 .5 and 11.5, the conditions were set.
- Samples 11 to 16 of the first comparative example were set so that ⁇ between cellulose acetate butyrate and organic solvent A would be 12.0, 7.0, and 10.5.
- ⁇ between cellulose acetate butyrate and organic solvent B is 5 types of 12.5, 11.5, 16.2, 20.6, 25.0.
- the conditions were set as follows.
- ⁇ between cellulose acetate butyrate and organic solvent B would be 4 types of 12.5, 10.5, 27.8, and 30.3. It was done.
- the samples 1 to 10 of the first example were set so that the average primary particle size of the Ni powder was in the range of 30 to 400 nm.
- the samples 11 to 16 of the first comparative example were set so that the average primary particle size of the Ni powder was in the range of 20 to 450 nm.
- the conductive paste has a high viscosity and print defects accompanied by rubbing during printing are generated. did.
- the sample 16 of the first comparative example that is, in the case of a conductive paste having a large average primary particle size of Ni powder of 450 nm
- Second Example and Second Comparative Example (Production of Samples of Second Example and Second Comparative Example)
- the conductive pastes of Samples 17 to 20 of the second example were manufactured using the materials shown in Table 3 by the manufacturing method shown in FIG. With the same manufacturing method, the conductive pastes of the samples 21 and 22 of the second comparative example which are outside the scope of the present invention were produced using the materials shown in Table 4.
- the abundance ratio of the organic solvent B is 5.0, 15.0, 25.0, 40.0% by weight of the total organic solvent of the organic solvent A and the organic solvent B.
- Conditions were set to be 4 types.
- the existence ratio of the organic solvent B is two types of 3.0 and 50.0% by weight of the total organic solvent of the organic solvent A and the organic solvent B. The condition was set.
- Third Example (Production of Sample of Third Example)
- the conductive pastes of Samples 23 to 48 of the third example were manufactured by using the materials shown in Table 5 and the manufacturing method shown in FIG.
- the third example was produced by selecting various solvents as the condition settings for the organic solvent A and the organic solvent B, respectively.
- the samples 49 to 53 of the fourth example were set so that the weight average molecular weight of the cellulose acetate butyrate as a binder resin was in the range of 5000 to 650000.
- the conditions of the samples 54 and 55 of the fourth comparative example were set so that the weight average molecular weights of cellulose acetate butyrate were two types of 2500 and 780000.
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Abstract
Description
導電性ペーストは、Ni粉末とバインダ樹脂成分と有機溶剤Aと有機溶剤Bとセラミック固形成分とを含んでいる。
次に、導電性ペーストの製造方法を、図1に示したフローチャートを参照して説明する。
次に、ステップS2で、それぞれの前記材料が撹拌されて第1ミルベースが作製される。有機溶剤Aは、バインダ樹脂成分のセルロースアセテートブチレートとのΔδ値が11.5以下である溶剤であるため、セルロースアセテートブチレートに対して良溶媒である。従って、セルロースアセテートブチレートが有機溶剤Aの中に浮遊し、ビヒクルが作製される。必要に応じて、任意量の分散剤が混練されてもよい。
次に、ステップS5で、それぞれの前記材料が第2ミルベースに混入および撹拌され、粘度が調整されながら導電性ペーストが作製される。このとき、任意量の添加剤が添加されてもよい。
図2は、前述の導電性ペーストを用いて内部電極が形成された積層セラミックコンデンサ1を示す長さ方向の垂直断面図である。なお、本発明は、LCフィルタ、LCモジュール等にも応用できる。
次に、前述の積層セラミックコンデンサ1の製造方法を説明する。
(印刷特性)
図1に示した製造方法で作製された導電性ペーストが、スクリーン印刷法によって、積層セラミックコンデンサ1の内層用セラミックグリーンシート(厚みが10μm)上に印刷された。その後、乾燥炉で所定の温度および時間で乾燥され、内部電極12,13となる導電性ペースト膜(生の導体パターン)が表面に形成された内層用セラミックグリーンシートが作製された。
図1に示した製造方法で作製された導電性ペーストが、保管容器に入れられ、常温にて30日間放置された。その後、比重瓶法により、容器に入れられた導電性ペーストの上層部分の比重と下層部分の比重とが測定された。導電性ペーストの比重差が0.10以上の場合は、沈降分離が「有る」として「×」と判定した。導電性ペーストの比重差が0.10未満の場合は、沈降分離が「無い」として「○」と判定した。
図1に示した製造方法で作製された導電性ペーストが、スクリーン印刷法によってガラス基板上に膜厚が10μmになるように印刷された。その後、乾燥炉で所定の温度および時間で乾燥され、導電性ペースト膜が表面に形成されたガラス基板が作製された。
前記評価項目(印刷特性、分散安定特性、塗膜平滑特性)の判定のうち、少なくとも1つの評価項目の中に「×」があれば、総合判定は「×」とされた。
(第1実施例および第1比較例の試料の作製)
第1実施例の試料1~10の導電性ペーストが、表1に示す材料を用いて、図1に示した製造方法で作製された。同様の製造方法で、本発明の範囲外である第1比較例の試料11~16の導電性ペーストが、表2に示す材料を用いて作製された。
表1から明らかなように、第1実施例の試料1~10の場合(すなわち、Δδの値が1.0~11.5の有機溶剤Aを用い、Δδの値が11.5~25.0の有機溶剤Bを用い、かつ、Ni粉末の平均一次粒径は30~400nmである導電性ペーストの場合)は、良好な印刷塗膜が得られた。
(第2実施例および第2比較例の試料の作製)
第2実施例の試料17~20の導電性ペーストが、表3に示す材料を用いて、図1に示した製造方法で作製された。同様の製造方法で、本発明の範囲外である第2比較例の試料21、22の導電性ペーストが、表4に示す材料を用いて作製された。
表3から明らかなように、第2実施例の試料17~20の場合(すなわち、有機溶剤Bの存在比率が、有機溶剤Aと有機溶剤Bとの合計有機溶剤の5.0~40.0重量%である導電性ペーストの場合)は、良好な印刷塗膜が得られた。
(第3実施例の試料の作製)
第3実施例の試料23~48の導電性ペーストが、表5に示す材料を用いて、図1に示した製造方法で作製された。第3実施例は、有機溶剤Aおよび有機溶剤Bの条件設定として、それぞれ種々の溶剤が選択されて作製された。
表5から明らかなように、第3実施例で用いられた有機溶剤Aと有機溶剤Bとを使用した導電性ペーストは、全て良好な印刷塗膜が得られた。
(第4実施例および第4比較例の試料の作製)
第4実施例の試料49~53の導電性ペーストが、表6に示す材料を用いて、図1に示した製造方法で作製された。同様の製造方法で、第4比較例の試料54、55の導電性ペーストが、表7に示す材料を用いて作製された。
表6から明らかなように、第4実施例の試料49~53の場合(すなわち、セルロースアセテートブチレート樹脂の重量平均分子量が5000~65000の範囲である導電性ペーストの場合)は、良好な印刷塗膜が得られた。
10 セラミック本体
11 内層用セラミック層
12,13 内部電極
15a,15b 外層用セラミック層
20,22 外部電極
Claims (8)
- Ni粉末とバインダ樹脂成分と有機溶剤Aとが含まれたビヒクルに、有機溶剤Bが後添加された導電性ペーストであって、
(a)前記Ni粉末の平均一次粒径は30~400nmであり、
(b)前記バインダ樹脂成分はセルロースアセテートブチレートであり、
(c)前記有機溶剤Aは、前記バインダ樹脂成分のセルロースアセテートブチレートとのΔδ値が11.5以下である溶剤であり、
(d)前記有機溶剤Bは、前記バインダ樹脂成分のセルロースアセテートブチレートとのΔδ値が11.5~25.0の範囲である溶剤であり、
(e)前記有機溶剤Bの存在比は、前記有機溶剤Aと前記有機溶剤Bとの合計有機溶剤の5.0~40.0重量%であること、
を特徴とする、導電性ペースト。 - 前記有機溶剤Aは、アルコール類、エーテル類、エステル類およびケトン類の少なくとも一つから選択されている有機溶剤であること、を特徴とする、請求項1に記載の導電性ペースト。
- 前記有機溶剤Aは、アセトフェノン、アニソール、酢酸2-エチルブチル、酢酸2-エチルヘキシル、酢酸2-ヘキシル、酢酸n-プロピル、酢酸n-ヘキシル、酢酸エチル、酢酸ブチル、ジイソブチルケトン、ジヒドロターピネオール、ジヒドロターピネオールアセテート、ターピネオール、ターピネオールアセテート、トリアセチン、フェネトール、ブチルアセテート、ブチルブチレート、プロピオン酸イソベンチル、ヘキシルアセテート、ヘプチルアセテート、ベンジルアセテート、ベンジルアルコール、メチルn-アミルケトン、メチルイソブチルケトンおよびメチルエチルケトンの少なくとも一つから選択されていること、を特徴とする、請求項2に記載の導電性ペースト。
- 前記有機溶剤Bは、炭化水素類から選択されている有機溶剤であること、を特徴とする、請求項1~請求項3のいずれかに記載の導電性ペースト。
- 前記有機溶剤Bは、α-ピネン、ヘキサン、オクタン、ドデカン、トルエン、キシレン、シクロヘキサン、メチルシクロヘキサンおよびD-リモネンの少なくとも一つから選択されていること、を特徴とする、請求項4に記載の導電性ペースト。
- セラミック固形成分が更に導電性ペーストに含有されており、前記セラミック固形成分は、ABO3のペロブスカイト型構造を有し、AはBa、CaおよびSrの少なくとも一つから選択され、BはTiおよびZrの少なくとも一つから選択されていること、を特徴とする、請求項1~請求項5のいずれかに記載の導電性ペースト。
- 前記バインダ樹脂成分のセルロースアセテートブチレートは、重量平均分子量が5000から650000の重合体であること、を特徴とする、請求項1~請求項6のいずれかに記載の導電性ペースト。
- 請求項1~請求項7のいずれかに記載の導電性ペーストを用いて導体パターンが形成されていること、を特徴とする、セラミック電子部品。
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- 2014-06-25 CN CN201480049642.9A patent/CN105518805B/zh active Active
- 2014-06-25 JP JP2015537582A patent/JP5971506B2/ja active Active
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2016
- 2016-03-11 US US15/067,736 patent/US9765225B2/en active Active
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US20170011850A1 (en) * | 2015-07-06 | 2017-01-12 | Samsung Electro-Mechanics Co., Ltd. | Multilayer ceramic electronic component |
US10262795B2 (en) * | 2015-07-06 | 2019-04-16 | Samsung Electro-Mechanics Co., Ltd. | Multilayer ceramic electronic component including ceramic-metal compound layers |
Also Published As
Publication number | Publication date |
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KR101850869B1 (ko) | 2018-04-23 |
CN105518805B (zh) | 2018-01-12 |
JPWO2015040916A1 (ja) | 2017-03-02 |
US9765225B2 (en) | 2017-09-19 |
CN105518805A (zh) | 2016-04-20 |
US20160194504A1 (en) | 2016-07-07 |
JP5971506B2 (ja) | 2016-08-17 |
KR20160042988A (ko) | 2016-04-20 |
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