WO2005026077A1 - セラミックスラリーの製造方法、グリーンシートおよび積層セラミック部品 - Google Patents
セラミックスラリーの製造方法、グリーンシートおよび積層セラミック部品 Download PDFInfo
- Publication number
- WO2005026077A1 WO2005026077A1 PCT/JP2004/012555 JP2004012555W WO2005026077A1 WO 2005026077 A1 WO2005026077 A1 WO 2005026077A1 JP 2004012555 W JP2004012555 W JP 2004012555W WO 2005026077 A1 WO2005026077 A1 WO 2005026077A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slurry
- ceramic
- producing
- binder resin
- pressure dispersion
- Prior art date
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 90
- 239000000919 ceramic Substances 0.000 title claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 69
- 239000011347 resin Substances 0.000 claims abstract description 69
- 238000011282 treatment Methods 0.000 claims abstract description 49
- 239000006185 dispersion Substances 0.000 claims abstract description 46
- 239000011230 binding agent Substances 0.000 claims abstract description 41
- 239000004922 lacquer Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 32
- 239000002245 particle Substances 0.000 claims description 13
- 239000002270 dispersing agent Substances 0.000 claims description 12
- 238000006116 polymerization reaction Methods 0.000 claims description 9
- 239000004014 plasticizer Substances 0.000 claims description 8
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 6
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 5
- 239000011354 acetal resin Substances 0.000 claims description 5
- 229920006324 polyoxymethylene Polymers 0.000 claims description 5
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 24
- 239000003973 paint Substances 0.000 description 29
- 239000010410 layer Substances 0.000 description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 17
- 239000000654 additive Substances 0.000 description 15
- 239000000049 pigment Substances 0.000 description 15
- 239000012298 atmosphere Substances 0.000 description 14
- 238000000576 coating method Methods 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 13
- 230000000996 additive effect Effects 0.000 description 12
- 239000002904 solvent Substances 0.000 description 12
- 238000010304 firing Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 11
- 239000003985 ceramic capacitor Substances 0.000 description 10
- 230000003746 surface roughness Effects 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 7
- 239000003849 aromatic solvent Substances 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 7
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- 239000002003 electrode paste Substances 0.000 description 6
- 239000010408 film Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 4
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- QUKGYYKBILRGFE-UHFFFAOYSA-N benzyl acetate Chemical compound CC(=O)OCC1=CC=CC=C1 QUKGYYKBILRGFE-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 239000008096 xylene Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229940007550 benzyl acetate Drugs 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- AOWKSNWVBZGMTJ-UHFFFAOYSA-N calcium titanate Chemical compound [Ca+2].[O-][Ti]([O-])=O AOWKSNWVBZGMTJ-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 2
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 2
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- -1 polybutylene Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
- C04B35/62635—Mixing details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
- C04B35/4682—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
- C04B35/6263—Wet mixtures characterised by their solids loadings, i.e. the percentage of solids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3215—Barium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
- C04B2235/3234—Titanates, not containing zirconia
- C04B2235/3236—Alkaline earth titanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3239—Vanadium oxides, vanadates or oxide forming salts thereof, e.g. magnesium vanadate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
- C04B2235/3454—Calcium silicates, e.g. wollastonite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/252—Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
Definitions
- the present invention relates to a method for producing a ceramic slurry, and more specifically, it is possible to smooth the surface of a green sheet, has sufficient sheet strength, and is excellent in workability such as peelability.
- the present invention relates to a method for producing a ceramic slurry capable of obtaining a green sheet, a green sheet produced by using the slurry obtained by the production method, and a multilayer ceramic component produced by using the green sheet.
- Ceramic green sheets have been developed with the aim of achieving high capacitance of multilayer ceramic chip capacitors as an example of multilayer ceramic components.
- the multilayer ceramic chip capacitor has a structure in which the dielectric layer is sandwiched between electrode layers, one end of which is exposed at the end of the chip, and both sides in the stacking direction are covered like a lid with a dielectric. ing.
- the dielectric layer is obtained by wrapping dielectric particles having a particle size on the order of submicron with a resin (binder) to form a sheet, laminating and sintering the sheets. Therefore, in order to reduce the thickness of the dielectric layer, it is important to produce a thin green sheet.
- Factors that affect the sheet surface roughness include pigment particle size, paint composition, and paint preparation time. Dispersion state, application conditions at the time of sheet formation, smoothing treatment for the sheet itself, and the like are included.
- the present invention relates to a method for improving a dispersion state at the time of preparing a paint. The fact that the pigment does not agglomerate in the paint and is dispersed in the form of single particles improves the surface properties and density of the sheet formed based on it. By using the technique of the present invention, a sheet having excellent surface properties can be produced by dispersing the pigment.
- Patent Document 1 As shown in Patent Document 1 below, a method has been proposed for improving dispersibility by subjecting a binder to a high-pressure treatment, particularly during the preparation of a paint.
- a method has been proposed for improving dispersibility by subjecting a binder to a high-pressure treatment, particularly during the preparation of a paint.
- FIG. 2 (B) since a paint containing a binder (resin) is subjected to high-pressure dispersion treatment, shear stress is applied not only to the pigment but also to the resin. You. For this reason, the resin was broken by the shear stress, which sometimes led to a decrease in sheet strength.
- Patent Document 1 Patent No. 3387455.
- the present invention has been made in view of such a situation, and an object of the present invention is to make it possible to make the surface of a green sheet smooth, to have sufficient sheet strength, and to improve workability such as peelability.
- a method for producing a ceramic slurry according to the present invention comprises:
- a method for producing a ceramic slurry having at least a ceramic powder and a binder resin solution A method for producing a ceramic slurry having at least a ceramic powder and a binder resin solution
- the ceramic powder and the pre-addition lacquer which is a part of the binder resin solution, are subjected to high pressure dispersion treatment so that the shear rate becomes 1 ⁇ 10 7 1 ⁇ 10 8 [l / sec] to prepare a preliminary slurry.
- the post-addition lacquer not subjected to the high-pressure dispersion treatment is added at least to the preliminary slurry subjected to the high-pressure dispersion treatment.
- the amount of the binder resin contained in the lacquer for pre-addition is less than 20% by mass, more preferably 10% by mass, based on the total amount of the binder resin contained in the finally obtained ceramic slurry. %, 1% by mass or more, more preferably 4% by mass or more.
- a binder resin solution of a binder resin solution is preferably a polyvinyl butyral resin or a polyvinyl acetal resin.
- the pressing force is also preferably not less than 1000 and not more than 2600, more preferably not less than 1400 and not more than 2600.
- the preliminary slurry has a shear rate of 1 ⁇ 10 7 —1 ⁇
- a method for applying a high pressure to the preliminary slurry is not particularly limited, and examples thereof include a method of flowing a paint at a high speed through a nozzle having a small diameter, and a method of narrowing a flow path of the paint. Is done.
- the shear rate is too low, the dispersion tends to be insufficient. If the shear rate is too high, the viscosity of the slurry becomes too low and a thin layer sheet having a stable film thickness tends to be formed by a coating method. It is in.
- the particle size of the ceramic powder is 0.01 ⁇ m to 0.5 ⁇ m.
- at least a part of a dispersant and / or a plasticizer may be added to the preliminary slurry before the high-pressure dispersion treatment, or the dispersant and / or the plasticizer may be added to the preliminary slurry after the high-pressure dispersion treatment. At least a part of the plasticizer may be added.
- the green sheet according to the present invention is manufactured using the ceramic slurry obtained by any one of the above-described methods for manufacturing a ceramic slurry.
- the laminated ceramic component according to the present invention is manufactured using the green sheet described above.
- FIG. 1 is a schematic sectional view of a multilayer ceramic capacitor according to an embodiment of the present invention.
- FIG. 2 (A) is a flowchart showing a method for producing a ceramic slurry according to one embodiment of the present invention.
- FIG. 2 (B) is a process drawing showing a conventional method for producing a ceramic slurry.
- the multilayer ceramic capacitor 2 has a capacitor body 4, a first terminal electrode 6, and a second terminal electrode 8.
- the capacitor body 4 has a dielectric layer 10 and an internal electrode layer 12, and the internal electrode layers 12 are alternately laminated between the dielectric layers 10.
- One of the alternately laminated internal electrode layers 12 is electrically connected to the inside of the first terminal electrode 6 formed at one end of the capacitor body 4.
- the other internal electrode layers 12 alternately stacked are electrically connected to the inside of the second terminal electrode 8 formed on the other end of the capacitor body 4.
- the material of the dielectric layer 10 is not particularly limited, and is made of a dielectric material such as calcium titanate, strontium titanate, and / or barium titanate.
- the thickness of each dielectric layer 10 is not particularly limited, but is generally several ⁇ —several hundred ⁇ . Particularly, in the present embodiment, the thickness is reduced to preferably 5 / m or less, more preferably 3 ⁇ or less.
- the materials of the terminal electrodes 6 and 8 are not particularly limited, but copper, copper alloy, nickel, nickel alloy, or the like, which is usually used, or silver-palladium alloy can also be used.
- the thickness of the terminal electrodes 6 and 8 is not particularly limited, but is usually about 10-50 / im.
- the shape and size of the multilayer ceramic capacitor 2 may be appropriately determined depending on the purpose and application.
- the multilayer ceramic capacitor 2 has a rectangular parallelepiped shape, it is usually vertical (0.6-5.6 mm, preferably f-0.6-3.2 mm) X horizontal (0.3-5-Omm, preferably f-0 3-1.6 mm) X Thickness (0.1-1.9 mm, preferably 0.3-1.6 mm).
- a green sheet paint (ceramic slurry) is prepared.
- the green sheet paint as a ceramic slurry is manufactured in the step shown in Fig. 2 (A).
- a pigment (ceramic powder) is prepared.
- the pigment includes a main component powder (dielectric particles) which is a main component of the green sheet such as calcium titanate, strontium titanate, and / or nordium titanate, and the pigment together with the dielectric particles.
- Additive material powder (additive material particles) to be added is a main component of the green sheet such as calcium titanate, strontium titanate, and / or nordium titanate, and the pigment together with the dielectric particles.
- the particle size of the main component powder is generally larger than the particle size of the additive material powder, for example, about 0.01 to 0.5 zm, preferably about 0.4 zm or less. In order to form an extremely thin green sheet, it is desirable to use a powder finer than the green sheet thickness.
- the additive material powder contains, for example, at least one of an alkaline earth metal, a transition metal, a rare earth element, and a glass composition.
- Alkaline earth metals, transition metals, and rare earth elements are not limited to powders in the form of the element alone, but also oxides, composite oxides, and various oxide-forming compounds such as carbonates, nitrates, hydroxides, and the like.
- a powder of an embodiment such as an organometallic compound, which may be contained in the additive powder.
- Such an additive powder is generally contained in the green sheet paint in a small proportion, for example, 3 to 6 parts by mass with respect to 100 parts by mass of the main component powder.
- As the additive powder a powder obtained by mixing additive components in advance with a ball mill or the like, calcining the dried powder at 800 to 1000 ° C., and roughly pulverizing the calcined product may be used.
- the pigment is subjected to a high-pressure dispersion treatment together with a solvent and a part of the lacquer (binder resin solution).
- the solvent is not particularly limited, but glycols, alcohols, ketones, esters, and / or aromatic solvents are exemplified.
- glycols examples include ethynolecanolebitone, butanediol, and 2-butoxyethanol.
- alcohol examples include methanol, ethanol, propanol and butanol.
- ketones examples include acetone, methyl ethyl ketone (MEK), and diacetone alcohol.
- esters examples include methyl acetate.
- the lacquer (resin solution) is obtained by dissolving a resin in an organic solvent.
- the resin is not particularly limited, and may be an acrylic resin, a polyvinyl butyral resin, a polybiacetal resin, an ethylcellulose resin, or the like.
- a polybutylene resin is used in order to reduce the thickness of the sheet.
- a petalal resin or a polybutyl acetal resin is used.
- the degree of polymerization of the polybutyral resin or polybutyl acetal resin is from 1,000 to 2,600, preferably from 1,400 to 2,600.
- the butyralization degree of the resin is more than 64% and less than 78%, preferably more than 64% and 70% or less, and the residual acetyl group content thereof is 6. Less than / 0 , preferably 3. / 0 or less.
- the degree of polymerization of the polybutyl butyral resin or the polybutyl acetal resin can be measured, for example, by the degree of polymerization of the raw material polybutyl alcohol resin. Further, the degree of petitialization can be measured, for example, in accordance with JISK6728. Further, the amount of residual acetyl group can be measured according to JISK6728.
- the polymerization degree of the polyvinyl butyral resin is too small, for example 5 mu m or less, preferably when thinned to a degree below 3 beta m, sufficient mechanical strength is Ru hardly tended to be obtained.
- the degree of polymerization is too large, the surface roughness tends to deteriorate when the sheet is formed.
- the degree of Petilerlouis of the polyvinyl butyral resin is too low, the solubility in the paste tends to deteriorate, and if it is too high, the surface roughness of the sheet tends to deteriorate. Further, if the residual acetyl group content is too large, the sheet surface roughness tends to deteriorate.
- the organic solvent used for the lacquer is not particularly limited, and for example, an organic solvent such as alcohol, butyl carbitol, acetone, and toluene is used.
- the organic solvent preferably includes an alcohol solvent and an aromatic solvent, and the total amount of the alcohol solvent and the aromatic solvent is 100 parts by mass, and the aromatic solvent is , And 10 to 20 parts by mass. If the content of the aromatic solvent is too small, the surface roughness of the sheet tends to increase, and if it is too large, the paint filtration characteristics deteriorate and the sheet surface roughness also increases.
- the binder resin is previously dissolved and filtered in at least one or more alcoholic solvents of methanol, ethanol, propanol, and butanol to form a solution. Is preferably added.
- the binder resin having a high polymerization degree is hardly soluble in a solvent, and the dispersibility of the coating material tends to be deteriorated by an ordinary method.
- the binder resin having a high degree of polymerization is dissolved in the above-described good solvent, and then the main component powder and other components are added to the solution, paste dispersibility can be improved. In addition, generation of undissolved resin can be suppressed. It should be noted that a solvent other than the above-mentioned solvents cannot increase the solid content concentration, and the lacquer viscosity tends to increase with time.
- the high-pressure dispersion treatment is performed, for example, by passing the preliminary slurry through a small-diameter nozzle.
- the preliminary slurry may contain a dispersant and / or a plasticizer and be subjected to a high-pressure dispersion treatment.
- the rest of the lacquer (post-addition lacquer) is added without being subjected to high-pressure dispersion treatment.
- the ratio of the lacquer for pre-addition and the lacquer for post-addition is such that the total amount of binder resin contained in the completed green sheet paint is 100% by mass, and the amount of binder resin contained in the lacquer for pre-addition is 20% by mass.
- the ratio is less than 10% by mass, more preferably 1% by mass or more, and even more preferably 4% by mass or more.
- the slurry, together with the lacquer for post-addition is added to the slurry, if necessary, with additives selected from various dispersants, plasticizers, antistatic agents, dielectrics, glass frits, insulators, and the like. Is done.
- additives may be added after the high-pressure dispersion treatment, or may be added before the high-pressure dispersion treatment and may be subjected to the high-pressure dispersion treatment together with the preliminary slurry.
- the conditions for kneading after the high-pressure dispersion treatment are not particularly limited, but are, for example, conditions such as ball mill mixing.
- the dispersant is not particularly limited, but may be a maleic acid-based dispersant, polyethylene glycol, or the like. And / or aryl ether copolymer dispersants.
- the power to use dioctyl phthalate is not particularly limited in the present invention, and is appropriately selected according to the type of the binder resin.
- the charging aid is not particularly limited, but is preferably an imidazoline-based charge removing agent.
- the green sheet coating material (ceramic slurry) produced through the process shown in Fig. 2 (A) is formed into a sheet by a die coater method or the like, and becomes a green sheet.
- This green sheet is a portion to be the dielectric layer 10 shown in FIG. 1, and is alternately laminated with the electrode film to be the internal electrode layer 12, and then cut to form a laminated chip, which is subjected to binder removal treatment and firing. After being processed, the capacitor element body 4 is obtained.
- the electrode film can be formed by a method of forming a thick film such as a printing method using an electrode paste or a combination of a thin film method such as vapor deposition and sputtering and a transfer method.
- the binder removal treatment may be performed under ordinary conditions.
- a base metal such as Ni or a Ni alloy is used as the conductive material of the internal electrode layer, it is particularly preferable to perform the treatment under the following conditions.
- Heating rate 5 to 300 ° C / hour
- Atmosphere Humidified gas mixture of N and H.
- the firing conditions are preferably the following conditions.
- Heating rate 50-500 ° C / hour
- Cooling rate 50-500 ° CZ time
- Atmosphere gas Humidified gas mixture of N and H.
- the oxygen partial pressure in an air atmosphere at firing is, 10-2 Pa or less, especially 10 2 - is preferably carried out at 10- 8 Pa. If the above range is exceeded, the internal electrode layer tends to be oxidized, and if the oxygen partial pressure is too low, the electrode material of the internal electrode layer undergoes abnormal sintering and is cut off. is there.
- the heat treatment after the calcination is preferably performed at a holding temperature or a maximum temperature of preferably 1000 ° C or higher, more preferably 1000-1100 ° C. If the holding temperature or the maximum temperature during the heat treatment is less than the above range, the oxidation resistance of the dielectric material is insufficient, so that the insulation resistance life tends to be shortened.
- Oxygen partial pressure at the thermal treatment is higher oxygen partial pressure than reducing atmosphere at firing, good Mashiku is 10- 3 Pa LPA, more preferably 10- 2 Pa LPA. Below the above range, it is difficult to reoxidize the dielectric layer 2, and beyond the above range, the internal electrode layer 3 tends to be oxidized.
- the other heat treatment conditions are preferably as follows.
- Cooling rate 50-500 ° CZ time
- Atmosphere gas Humidified N gas, etc.
- a wetter may be used.
- the water temperature is preferably about 0 to 75 ° C.
- the binder removal treatment, firing and heat treatment may be performed continuously or independently. When these are continuously performed, after removing the binder, the atmosphere is changed without cooling, and then the temperature is raised to the holding temperature at the time of firing, firing is performed, and then the temperature is lowered to the holding temperature of the heat treatment. Sometimes it is preferable to change the atmosphere and perform the heat treatment. On the other hand, if these steps are carried out independently, during firing, N gas or humidified N
- the atmosphere is changed and the temperature is further increased.After cooling to the holding temperature during the heat treatment, which is preferable, the atmosphere is changed to the N gas or humidified N gas atmosphere again.
- a gas atmosphere may be used.
- the sintered body (element body 4) obtained in this manner is subjected to end face polishing by, for example, barrel polishing, sandblasting or the like, and the terminal electrode paste is baked to form terminal electrodes 6, 8. Is done.
- the firing conditions of the terminal electrode paste are, for example, a mixed gas of humidified N and H.
- the temperature it is preferable to set the temperature at 600 to 800 ° C for about 10 minutes to 11 hours.
- a pad layer is formed by plating or the like on the terminal electrodes 6 and 8. Note that the terminal electrode paste may be prepared in the same manner as the above-mentioned electrode paste.
- the multilayer ceramic capacitor of the present invention manufactured as described above is mounted on a printed board or the like by soldering or the like, and is used for various electronic devices and the like.
- the ceramic slurry according to the present invention the green slurry of the above-described embodiment is used.
- the present invention is not limited to the paint for coating, but may be applied to other ceramic slurries such as electrode paste and blank paste.
- the multilayer ceramic component manufactured using the ceramic slurry according to the present invention is not limited to a multilayer ceramic capacitor, but may be an inductor, a norister, or the like.
- BaTiO powder (BT-02 / Sakai-Danigaku Kogyo Co., Ltd.) was used as a starting material for ceramic powder.
- Omicron 1. 01 parts by weight, MgCO: 0. 72 mass 0/0, Cr ⁇ : 0. 13 mass%, and VO
- a high-pressure dispersion device (Ultimizer-I HJP-2505 manufactured by Sugino Machine Co., Ltd.) was used, and the dispersion treatment was performed under the conditions of lOOMPa.
- the shear rate for the slurry during the high-pressure dispersion treatment was calculated from the nozzle diameter of the treatment apparatus and the treatment rate of the slurry, and as shown in Table 2, was 5.10 ⁇ 10 7 [l / sec].
- the temperature of the slurry immediately after the high-pressure dispersion treatment was 42 ° C as shown in Table 2.
- the preliminary slurry after the high pressure was mixed and kneaded with 78.8 g of the same lacquer as described above (lacquer for post-addition) to obtain ceramic slurry (paint for green sheet).
- lacquer for post-addition lacquer for post-addition
- the kneading conditions were a ball mill for 16 hours.
- BH6 polybutyral resin ZPVB
- the polymerization degree of the polybutyral resin as the binder resin was 1,400, the degree of butyralization was 69% ⁇ 3%, and the amount of residual acetyl group was 3 ⁇ 2%.
- the amount of the binder resin contained in the pre-addition lacquer is 4.2% by mass. Met.
- the viscosity of the completed green sheet paint was 20 cP.
- the viscosity of the paint was measured using a B-type viscometer using S21 as a rotor at a temperature of 25 ° C. immediately after the paint was dropped. The measurement speed was 50 rpm.
- the paint obtained as described above was applied on a PET film as a support film by a wire bar coater, and dried to produce a 1 ⁇ m-thick green sheet.
- the coating speed was 50 m / min.
- the drying conditions were as follows: the temperature in the drying oven was 60 ° C-70 ° C, and the drying time was 2 minutes.
- the glossiness of the green sheet was measured.
- the gloss was measured by measuring the gloss of the surface of the green sheet using VGS-1D manufactured by Nippon Denshoku Industries Co., Ltd., JIS Z-874K1983) Method 3.
- Table 1 shows the results. In the measurement of glossiness, 70% or more was judged as good ( ⁇ ), and the others were judged as poor (X). If the sheet gloss is less than 70%, the surface properties of the sheet are poor, and This is because a short circuit may be caused when the chip is cut.
- the sheet strength of the green sheet was also measured.
- the sheet strength was measured using an Instron 5543 tensile tester, five samples of dumbbell-shaped punched samples were prepared as sample sumps, and each sample was pulled at a pulling speed of 8 mm / min. And the average was calculated.
- Table 1 If the sheet strength is less than 4.5 MPa, it becomes impossible to peel a thin layer sheet of about lzm, which is disadvantageous in the process. Was 4.5 MPa or more, and X was not.
- a green sheet was prepared and evaluated in the same manner as in Example 1, except that the amount was changed to 3% by mass. The results are shown in Table 1.
- a green sheet was prepared in the same manner as in Example 1 except that all the components were mixed for 16 hours using a ball mill without adding the lacquer and without performing high-pressure dispersion treatment. Was evaluated. The results are shown in Tables 1 and 2.
- the amount of the binder resin contained in the pre-addition lacquer is 100% by mass (the post-addition lacquer).
- a green sheet was prepared and evaluated in the same manner as in Example 1 except that the condition was changed to “none”. The results are shown in Table 1.
- a green sheet was prepared in the same manner as in Example 1 except that the high-pressure dispersion treatment was performed under the condition of a pressure of 160 MPa, and the shear rate was changed to 8.20 ⁇ 10 7 [l / sec]. The same evaluation was performed. Table 2 shows the results.
- the paint temperature was 63 ° C.
- a green sheet was prepared in the same manner as in Comparative Example 2 except that the high-pressure dispersion treatment was performed at a pressure of 160 MPa, and the shear rate was changed to 7.20 ⁇ 10 7 [l / sec]. The same evaluation was performed. Table 2 shows the results. The paint temperature reached 70 ° C, near the boiling point of the organic solvent component in the paint, and measures such as explosion-proof treatment were required. Sheets could not be produced under normal conditions.
- the amount of binder resin contained in the pre-added lacquer is less than 20% by mass and 1% by mass or more based on the total amount of binder resin contained in the finally obtained green sheet paint. In the case of, it was confirmed that the overall evaluation was improved.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Ceramic Capacitors (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/571,542 US7744711B2 (en) | 2003-09-12 | 2004-08-31 | Manufacturing method of ceramic slurry, green sheet and multilayer ceramic device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003320952A JP4152841B2 (ja) | 2003-09-12 | 2003-09-12 | セラミックスラリーの製造方法、グリーンシートおよび積層セラミック部品 |
JP2003-320952 | 2003-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005026077A1 true WO2005026077A1 (ja) | 2005-03-24 |
Family
ID=34308613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/012555 WO2005026077A1 (ja) | 2003-09-12 | 2004-08-31 | セラミックスラリーの製造方法、グリーンシートおよび積層セラミック部品 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7744711B2 (ja) |
JP (1) | JP4152841B2 (ja) |
KR (1) | KR100796866B1 (ja) |
CN (1) | CN100415689C (ja) |
TW (1) | TWI241602B (ja) |
WO (1) | WO2005026077A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7396425B2 (en) * | 2004-08-20 | 2008-07-08 | Tdk Corporation | Method of production of peeling layer paste and method of production of multilayer type electronic device |
JP2008300548A (ja) * | 2007-05-30 | 2008-12-11 | Tdk Corp | 積層インダクタ部品 |
CN101302259B (zh) * | 2006-05-10 | 2014-08-20 | 可乐丽欧洲有限责任公司 | 用缩醛化聚乙烯醇制备陶瓷膜坯的方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007106621A (ja) * | 2005-10-12 | 2007-04-26 | Tokuyama Corp | 窒化アルミニウムグリーン体の製造方法 |
KR100843449B1 (ko) * | 2006-08-31 | 2008-07-03 | 삼성전기주식회사 | 세라믹 시트 제품 및 그 제조방법 |
JP4930149B2 (ja) * | 2007-03-29 | 2012-05-16 | Tdk株式会社 | 積層型電子部品の製造方法 |
CN101923911B (zh) * | 2010-04-27 | 2011-11-02 | 电子科技大学 | 基于不锈钢基板的ybco厚膜电阻浆料及其制备方法 |
JP5951522B2 (ja) * | 2012-03-28 | 2016-07-13 | 日本碍子株式会社 | セラミックスペースト及び積層体 |
KR20190121222A (ko) | 2018-11-16 | 2019-10-25 | 삼성전기주식회사 | 유전체 조성물 및 이를 이용한 커패시터 부품 |
JP6947286B2 (ja) * | 2018-11-22 | 2021-10-13 | Tdk株式会社 | はく離フィルムの製造方法、及びセラミック部品シートの製造方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001106578A (ja) * | 1999-10-05 | 2001-04-17 | Murata Mfg Co Ltd | セラミックスラリー、セラミックグリーンシート及び積層セラミック電子部品の製造方法 |
JP2003146764A (ja) * | 2001-11-07 | 2003-05-21 | Matsushita Electric Ind Co Ltd | セラミックスラリーの製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4722239B2 (ja) | 1997-07-28 | 2011-07-13 | パナソニック株式会社 | 電気二重層キャパシタおよびその製造方法 |
CN1098825C (zh) * | 1998-07-24 | 2003-01-15 | 清华大学 | 陶瓷基板的流延法制备工艺 |
JP3387455B2 (ja) | 1999-07-23 | 2003-03-17 | 株式会社村田製作所 | セラミックスラリー、セラミックグリーンシート及び積層セラミック電子部品の製造方法 |
JP3538706B2 (ja) | 1999-11-11 | 2004-06-14 | 株式会社村田製作所 | セラミックスラリー組成物の製造方法及びセラミックグリーンシートの製造方法 |
GB2363087B (en) | 1999-07-23 | 2002-05-22 | Murata Manufacturing Co | Method of producing ceramic slurry, ceramic green sheet and multilayer ceramic electronic part |
GB2355947B (en) | 1999-07-23 | 2002-02-20 | Murata Manufacturing Co | Method of producing ceramic slurry, ceramic slurry composition, ceramic green sheet and multilayer ceramic electronic part |
JP3304927B2 (ja) | 1999-07-23 | 2002-07-22 | 株式会社村田製作所 | セラミックスラリー、セラミックグリーンシート及び積層セラミック電子部品の製造方法 |
JP3675264B2 (ja) * | 1999-12-03 | 2005-07-27 | 株式会社村田製作所 | セラミックスラリー、セラミックグリーンシート及び積層セラミック電子部品の製造方法 |
JP4403920B2 (ja) * | 2004-08-20 | 2010-01-27 | Tdk株式会社 | 剥離層用ペーストの製造方法及び積層型電子部品の製造方法 |
-
2003
- 2003-09-12 JP JP2003320952A patent/JP4152841B2/ja not_active Expired - Fee Related
-
2004
- 2004-08-31 US US10/571,542 patent/US7744711B2/en not_active Expired - Fee Related
- 2004-08-31 KR KR1020067005018A patent/KR100796866B1/ko not_active IP Right Cessation
- 2004-08-31 WO PCT/JP2004/012555 patent/WO2005026077A1/ja active Application Filing
- 2004-08-31 CN CNB2004800263529A patent/CN100415689C/zh not_active Expired - Fee Related
- 2004-09-02 TW TW093126499A patent/TWI241602B/zh not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001106578A (ja) * | 1999-10-05 | 2001-04-17 | Murata Mfg Co Ltd | セラミックスラリー、セラミックグリーンシート及び積層セラミック電子部品の製造方法 |
JP2003146764A (ja) * | 2001-11-07 | 2003-05-21 | Matsushita Electric Ind Co Ltd | セラミックスラリーの製造方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7396425B2 (en) * | 2004-08-20 | 2008-07-08 | Tdk Corporation | Method of production of peeling layer paste and method of production of multilayer type electronic device |
CN101302259B (zh) * | 2006-05-10 | 2014-08-20 | 可乐丽欧洲有限责任公司 | 用缩醛化聚乙烯醇制备陶瓷膜坯的方法 |
JP2008300548A (ja) * | 2007-05-30 | 2008-12-11 | Tdk Corp | 積層インダクタ部品 |
JP4640377B2 (ja) * | 2007-05-30 | 2011-03-02 | Tdk株式会社 | 積層インダクタ部品 |
Also Published As
Publication number | Publication date |
---|---|
CN1849277A (zh) | 2006-10-18 |
US20060280933A1 (en) | 2006-12-14 |
KR20060087558A (ko) | 2006-08-02 |
CN100415689C (zh) | 2008-09-03 |
TW200518136A (en) | 2005-06-01 |
KR100796866B1 (ko) | 2008-01-22 |
TWI241602B (en) | 2005-10-11 |
US7744711B2 (en) | 2010-06-29 |
JP4152841B2 (ja) | 2008-09-17 |
JP2005089200A (ja) | 2005-04-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4449984B2 (ja) | 導電性粒子の製造方法、導電性ペーストおよび電子部品の製造方法 | |
WO2004070748A1 (ja) | 電子部品およびその製造方法 | |
JP4942822B2 (ja) | ニッケル電極用x8r誘電体組成物 | |
WO2006001358A1 (ja) | 積層型電子部品の製造方法 | |
JP4303715B2 (ja) | 導電性ペーストおよび積層型電子部品の製造方法 | |
WO2005026077A1 (ja) | セラミックスラリーの製造方法、グリーンシートおよび積層セラミック部品 | |
WO2001033589A1 (fr) | Composant electronique ceramique multicouche | |
WO2005017928A1 (ja) | 積層セラミック部品およびその製造方法 | |
JP6586507B2 (ja) | ニッケル電極用cog誘電体組成物 | |
JP4896364B2 (ja) | 積層セラミックコンデンサおよびその製造方法 | |
CN102136310A (zh) | 导电膏以及电子零件的制造方法 | |
JP4506755B2 (ja) | グリーンシート、グリーンシートの製造方法、および電子部品の製造方法 | |
JP2001284161A (ja) | ニッケル粉末、電極用ペーストおよび電子部品の製造方法 | |
WO2006013625A1 (ja) | 厚膜グリーンシート用塗料及びその製法、該塗料を用いた電子部品の製法 | |
JP3756885B2 (ja) | 厚膜グリーンシート用塗料、厚膜グリーンシート用塗料の製造方法、厚膜グリーンシートの製造方法、厚膜グリーンシートおよび電子部品の製造方法 | |
JP5459952B2 (ja) | 誘電体セラミックス材料の製造方法 | |
JP5184333B2 (ja) | 誘電体セラミックス材料の製造方法 | |
JP2008218532A (ja) | グリーンシート積層ユニット、電子部品の製造方法、および電子部品 | |
JP5459951B2 (ja) | セラミックスラリーの製造方法 | |
JP2000216042A (ja) | 積層型セラミックコンデンサの製造方法 | |
JP2004134808A (ja) | セラミック電子部品の製造方法および脱バインダ方法 | |
JP2008186933A (ja) | 積層型電子部品の製造方法 | |
JP3545287B2 (ja) | セラミック電子部品の製造方法および脱バインダ方法 | |
JP5899912B2 (ja) | 電極焼結体、積層電子部品、内部電極ペースト、電極焼結体の製造方法、積層電子部品の製造方法 | |
KR100881260B1 (ko) | 후막 그린 시트용 도료, 그 제조 방법 및 그 도료를 이용한전자 부품의 제조 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480026352.9 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GM HR HU ID IL IN IS KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NA NI NO NZ OM PG PL PT RO RU SC SD SE SG SK SL SY TM TN TR TT TZ UA UG US UZ VC YU ZA ZM |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SZ TZ UG ZM ZW AM AZ BY KG MD RU TJ TM AT BE BG CH CY DE DK EE ES FI FR GB GR HU IE IT MC NL PL PT RO SE SI SK TR BF CF CG CI CM GA GN GQ GW ML MR SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2006280933 Country of ref document: US Ref document number: 10571542 Country of ref document: US Ref document number: 1020067005018 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067005018 Country of ref document: KR |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 10571542 Country of ref document: US |