JP4916442B2 - 鉛フリー及びカドミウムフリー導電性銅厚膜ペースト - Google Patents
鉛フリー及びカドミウムフリー導電性銅厚膜ペースト Download PDFInfo
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- JP4916442B2 JP4916442B2 JP2007527233A JP2007527233A JP4916442B2 JP 4916442 B2 JP4916442 B2 JP 4916442B2 JP 2007527233 A JP2007527233 A JP 2007527233A JP 2007527233 A JP2007527233 A JP 2007527233A JP 4916442 B2 JP4916442 B2 JP 4916442B2
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- Prior art keywords
- thick film
- glass
- glass composition
- film paste
- mol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 52
- 239000010949 copper Substances 0.000 title claims description 44
- 229910052802 copper Inorganic materials 0.000 title claims description 43
- 239000011521 glass Substances 0.000 claims description 158
- 239000000203 mixture Substances 0.000 claims description 107
- 239000000758 substrate Substances 0.000 claims description 61
- 238000010304 firing Methods 0.000 claims description 38
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 32
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 15
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 claims description 11
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 10
- LTPBRCUWZOMYOC-UHFFFAOYSA-N Beryllium oxide Chemical compound O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 4
- 229910002113 barium titanate Inorganic materials 0.000 claims description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 2
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- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 5
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- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 5
- 238000004377 microelectronic Methods 0.000 description 5
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- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 4
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- 239000001856 Ethyl cellulose Substances 0.000 description 3
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical group CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 3
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- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
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- 150000001298 alcohols Chemical class 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
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- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
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- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 2
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- 239000000080 wetting agent Substances 0.000 description 2
- DAFHKNAQFPVRKR-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)C DAFHKNAQFPVRKR-UHFFFAOYSA-N 0.000 description 1
- WUOACPNHFRMFPN-SECBINFHSA-N (S)-(-)-alpha-terpineol Chemical compound CC1=CC[C@@H](C(C)(C)O)CC1 WUOACPNHFRMFPN-SECBINFHSA-N 0.000 description 1
- RUJPNZNXGCHGID-UHFFFAOYSA-N (Z)-beta-Terpineol Natural products CC(=C)C1CCC(C)(O)CC1 RUJPNZNXGCHGID-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 1
- VXQBJTKSVGFQOL-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethyl acetate Chemical compound CCCCOCCOCCOC(C)=O VXQBJTKSVGFQOL-UHFFFAOYSA-N 0.000 description 1
- HXDLWJWIAHWIKI-UHFFFAOYSA-N 2-hydroxyethyl acetate Chemical compound CC(=O)OCCO HXDLWJWIAHWIKI-UHFFFAOYSA-N 0.000 description 1
- SNDGSXYUWAVQDK-UHFFFAOYSA-N 3-azaniumylpropylazanium;diacetate Chemical compound CC(O)=O.CC(O)=O.NCCCN SNDGSXYUWAVQDK-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910017755 Cu-Sn Inorganic materials 0.000 description 1
- 229910017927 Cu—Sn Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920000896 Ethulose Polymers 0.000 description 1
- 239000001859 Ethyl hydroxyethyl cellulose Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- OVKDFILSBMEKLT-UHFFFAOYSA-N alpha-Terpineol Natural products CC(=C)C1(O)CCC(C)=CC1 OVKDFILSBMEKLT-UHFFFAOYSA-N 0.000 description 1
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000005391 art glass Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000009835 boiling Methods 0.000 description 1
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- 239000003990 capacitor Substances 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
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- 150000001768 cations Chemical class 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
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- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
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- 238000007598 dipping method Methods 0.000 description 1
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- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- TUFJPPAQOXUHRI-KTKRTIGZSA-N n'-[(z)-octadec-9-enyl]propane-1,3-diamine Chemical compound CCCCCCCC\C=C/CCCCCCCCNCCCN TUFJPPAQOXUHRI-KTKRTIGZSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 239000005368 silicate glass Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- QJVXKWHHAMZTBY-GCPOEHJPSA-N syringin Chemical compound COC1=CC(\C=C\CO)=CC(OC)=C1O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 QJVXKWHHAMZTBY-GCPOEHJPSA-N 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
- C03C3/066—Glass compositions containing silica with less than 40% silica by weight containing boron containing zinc
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/04—Frit compositions, i.e. in a powdered or comminuted form containing zinc
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
- C03C8/18—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions containing free metals
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/22—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions containing two or more distinct frits having different compositions
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
- C04B41/5127—Cu, e.g. Cu-CuO eutectic
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/88—Metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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Description
a)銅又は銅合金を含む金属成分は固体分において約65〜約99重量%、より好ましくは約80〜約98重量%;b)ガラス成分は固体分において約1〜35重量%、より好ましくは約2〜約20重量%。キャリアに関し、本発明にかかる好ましい組成物は以下の通りである。
1)少なくとも約90重量%の有機溶剤;2)多くとも約15重量%の樹脂;3)多くとも約4重量%のチキソトロープ剤;4)多くとも約2重量%の湿潤剤。具体的な市販のビヒクルとして、ターピネオールに溶解されたエチルセルロースとエルバサイト(elvacite)から成るFerro Corporation 社製の2752及び308-5Vが挙げられる。銅金属は粉末状及び/又はフレーク状の形状を呈していると好都合である。本発明において適している銅粉末は、Ferro Corporation社製(オハイオ州、クリーブランド)のCu-015, Cu-030, Cu-10Kという製品名の銅製品として市販されている。
本発明にかかる厚膜ペースト、表2に中のペーストAは、以下の銅粉末;Cu-015 (23.3重量%)、Cu-030(19.8重量%)、Cu-10K(30.7重量%)、及びBi2O3(2.9重量%)、Cu2O(4.9重量%)、本発明にかかるガラス1(1.9重量%)、本発明にかかるガラス2(2.9重量%)、本発明にかかるガラス3(1.5重量%)、R2752と308-5Vの二種の有機ビヒクルを各々5.8重量%含む。ペースト組成物は、ガラス被覆された400シリーズステンレススチール上で窒素雰囲気下、650℃にて焼成された。ペーストに用いられたガラス組成物の選択された特性を表3に示す。ガラス被覆されたステンレススチール上で焼成された後の、ペーストの選択された特性を表4に示す。焼成後の接着パッドの滑らな表面が観察され、良好なレベルの特性が確認された。前述の銅厚膜ペースト断面の走査電子顕微鏡(SEM)観察により、優れたガラス濡れ性、銅粒子への延展、ガラス/銅厚膜の界面における剥離又はひび割れが結晶及びガラス質層に存在しないことが確認された。下記の表4に、ガラス被覆ステンレススチール基板上への本発明にかかる銅厚膜ペーストの接着性が極めて良好であることが示されている。焼成後の本発明にかかる厚膜の濡れ性の良好さが、62Sn/36Pb/2Agはんだとの結合によって認められた。
本発明にかかる実施例1の厚膜ペーストが、96%アルミナ基板上で窒素雰囲気下、650℃にて焼成された。焼成後の第一ペーストの選択された特性を表4に示す。銅-アルミナ界面断面のSEM観察により、銅と基板の間に、薄い(〜1μm)の界面にガラス層が形成されているのが確認された。ペースト由来の界面ガラスがひび割れることなく、良好な濡れ性、銅粒子及びアルミナ(Al2O3)粒子が良好に延展していることが明らかである。エネルギー分散型X線分析(EDAX)により、ガラス/アルミナ界面におけるガラスへのアルミナ基板の若干の溶解が確認され、この現象は基板への優れた化学的結合をもたらすと考えられる。銅へのはんだの侵入は観察されず、焼成後は銅の良好な焼結が認められた。印刷−乾燥−焼成のサイクルを3回繰り返した後の火ぶくれは認められなかった。はんだ付けされた銅トラックを、熱せられたはんだへ3回浸せきした後のろ過物は、極微量であった。これは、たった650℃の焼成後において、アルミナ基板上の厚膜印刷銅の接着性が良好であることに起因している。
本発明にかかる実施例1の厚膜ペーストが、96%アルミナ基板上で窒素雰囲気下、850℃にて焼成された。焼成後のペーストの選択された特性を表4に示す。850℃での焼成後の接着性は650℃での焼成に比べて若干の低下がみられたが、これはおそらく界面のガラス層が厚くなった(1μmから6μm)ためと考えられる。650℃における焼成のように、850℃での焼成後、銅とアルミナの間に界面ガラス層が形成される。また、ガラスは優れた濡れ性、剥離又はひび割れすることなく、銅のアルミナの両方の粒子が良好に延展していることが示される。ガラス/アルミナ界面においてガラスへアルミナが溶解すると、界面層にアルミナがしみ込み、そして層の粘度がある程度上昇し、過剰なアルミナが界面から界面層中に拡散するようになって初めて、アルミナの溶解現象が低下すると考えられる。厚膜印刷システムのガラスは、高温度、例えば850℃での焼成後の接着性を低下させてしまうと考えられる厚い界面ガラス層の形成を制限するように設計されている。62Sn/36Pb/2Agはんだによる銅の良好な濡れ性が確認された。銅の層は高密度であった。
本発明にかかる実施例1の厚膜ペーストが、アルミニウムワイヤーボンディング用途に使用された。表4に、96%アルミナ基板の850℃における焼成後の特性を示す。ここにおける銅も良好なはんだ濡れ性を示す。0.010”アルミナワイヤーが調べられ、厚膜印刷銅とアルミナ基板間の良好な接着性を維持する、厚膜銅/アルミナ界面部以外でのワイヤー破損によるものと分かった。ペーストも22AWGスズめっきされた銅ワイヤーをはんだ付けした場合に、良好な接着性を示す。アルミナ基板上の厚膜印刷銅の大部分がはんだ浸出を起こすことが明らかとなる。表4中の特に試験例2及び4に、銅ペーストが650℃又は850℃において、アルミナ基板上で焼成され得ることが示され、いずれの場合においても極めて優れた機械的および電子的特性を与えることが認められる。
Claims (19)
- ガラス成分と金属成分を含む固体分を含む鉛フリー及びカドミウムフリー導電性厚膜ペーストにおいて、前記ガラス成分が
(a)下記(i)〜(iii)を含む第一ガラス組成物、
(i)約25〜約67モル%のBaO
(ii)約33〜約70モル%のSiO2+B2O3
(iii)約0.1〜約20%のTiO2
(b)下記(iv)〜(v)を含む第二ガラス組成物とを含み、
(iv)約26〜約65モル%のZnO
(v)約33〜約70%のSiO2+B2O3
(c)前記第一ガラス組成物と前記第二ガラス組成物が、約1:40〜約20:1の重量比で存在する、
ことを特徴とする厚膜ペースト。 - 請求項1に記載の厚膜ペーストにおいて、前記第二ガラス組成物がさらに約0.1〜約10モル%のTiO2+ZrO2、及び約0.1〜約15モル%のLi2O+Na2O+K2Oを含むことを特徴とする厚膜ペースト。
- 請求項1に記載の厚膜ペーストにおいて、前記金属成分が銅を含むことを特徴とする厚膜ペースト。
- 請求項1に記載の厚膜ペーストにおいて、前記第二ガラス組成物がさらに0.1〜10モル%のAl2O3を含むことを特徴とする厚膜ペースト。
- 請求項1に記載の厚膜ペーストにおいて、前記ガラス成分がさらに第三ガラス組成物を含み、該第三ガラス組成物が約5〜約80モル%のBi2O3を含むことを特徴とする厚膜ペースト。
- 請求項1に記載の厚膜ペーストにおいて、前記第二ガラス組成物がさらに約0.1〜約10モル%のZrO2を含むことを特徴とする厚膜ペースト。
- 請求項1に記載の厚膜ペーストにおいて、前記第二ガラス組成物がさらにTiO2を含み、第二ガラス組成物中に存在するTiO2+ZrO2の総量が約0.1〜約10モル%であることを特徴とする厚膜ペースト。
- 請求項1に記載の厚膜ペーストにおいて、前記第二ガラス組成物がさらに約0.1〜約15モル%のNa2O+K2Oを含むことを特徴とする厚膜ペースト。
- 請求項1に記載の厚膜ペーストにおいて、前記ガラス成分が
(a)下記(vi)〜(viii)を含む第一ガラス組成物、
(vi)約35〜約65モル%のBaO
(vii)約35〜約66モル%のSiO2+B2O3
(viii)約0.1〜約10モル%のTiO2
(b)下記(ix)〜(xi)を含む第二ガラス組成物とを含み、
(ix)約30〜約60モル%のZnO
(x)約40〜約60モル%のSiO2+B2O3
(xi)約0.1〜約10モル%のZrO2
(c)前記第一ガラス組成物と前記第二ガラス組成物が、約1:40〜約20:1の重量比で存在する、
ことを特徴とする厚膜ペースト。 - 請求項9に記載の厚膜ペーストにおいて、さらに第三ガラス組成物を含み、該第三ガラス組成物が約15〜約65モル%のBi2O3を含むことを特徴とする厚膜ペースト。
- 請求項9に記載の厚膜ペーストにおいて、前記ガラス成分が約2.5〜約80重量%の第一ガラス組成物と、約2〜約97.5重量%の第二ガラス組成物を含むことを特徴とする厚膜ペースト。
- 請求項1に記載の厚膜ペーストにおいて、前記固体分が約80〜約98重量%の前記金属成分と、約2〜約20重量%の前記ガラス成分を含むことを特徴とする厚膜ペースト。
- 焼成後の最大抵抗値が約20mohm/squareである請求項1に記載の厚膜ペースト。
- ガラス成分と金属成分を含む固体分を含む鉛フリー及びカドミウムフリー導電性厚膜ペーストにおいて、前記ガラス成分が
(a)下記(i)〜(iii)を含む第一ガラス組成物
(i)約5〜約35モル%のZnO
(ii)約5〜約40モル%のSiO2
(iii)約2〜約35モル%のB2O3
(b)下記(iv)〜(vii)を含む第二ガラス組成物
(iv)約20〜約70モル%のBi2O3
(v)約20〜約50モル%のSiO2
(vi)約2〜約30モル%のB2O3
(vii)前記第一ガラス組成物と前記第二ガラス組成物が、約1:40〜約20:1の重量比で存在する
ことを特徴とする厚膜ペースト。 - 請求項1に記載の厚膜ペーストにおいて、さらに液体分を含み、該ペーストが約10〜約30重量%の液体分を含むことを特徴とする厚膜ペースト。
- 導電性のパスを有する電子デバイスにおいて、前記パスが鉛フリー及びカドミウムフリー導電性厚膜ペーストを焼成することによって形成され、前記ペーストがガラス成分を含み、前記ガラス成分が下記(a)〜(c)を有することを特徴とする電子デバイス。
(a)下記(xii)〜(xiv)を含む第一ガラス組成物
(xii)約25〜約67モル%のBaO
(xiii)約33〜約70モル%のSiO2+B2O3
(xiv)約0.1〜約20モル%のTiO2
(b)下記(xv)〜(xvi)を含む第二ガラス組成物
(xv)約27〜約65モル%のZnO
(xvi)約33〜約70モル%のSiO2+B2O3
(c)前記第一ガラス組成物と前記第二ガラス組成物が、約1:40〜約20:1の重量比で存在する。 - 請求項16に記載の電子デバイスにおいて、前記電子デバイスがソーラーパネル、ヒーター、フロントガラスパネルからなる群より選択される製品を含むことを特徴とする電子デバイス。
- 下記工程を含む電子デバイスの製造方法。
(i)請求項1記載の導電性厚膜ペースト及び基板を準備する。
(ii)前記ペーストを前記基板上に塗布する。
(iii)前記工程(ii)後の基板を約650〜約850℃の温度で焼成する。 - 請求項18に記載の電子デバイスの製造方法において、前記基板がアルミナ基板、磁器エナメル被覆スチール、ベリリア基板、チタン酸バリウム基板、窒化アルミニウム基板、炭化ケイ素基板からなる群より選択されることを特徴とする電子デバイスの製造方法。
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US10/864,304 | 2004-06-09 | ||
US10/864,304 US7176152B2 (en) | 2004-06-09 | 2004-06-09 | Lead-free and cadmium-free conductive copper thick film pastes |
PCT/US2005/012743 WO2006001882A2 (en) | 2004-06-09 | 2005-04-15 | Lead-free and cadmium-free conductive copper thick film pastes |
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KR (1) | KR101154928B1 (ja) |
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JP2014154547A (ja) * | 2013-02-04 | 2014-08-25 | E.I.Du Pont De Nemours And Company | 基板上で銅導体を形成する方法における銅ペースト組成物およびその使用 |
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EP1784367A4 (en) | 2011-05-25 |
WO2006001882A2 (en) | 2006-01-05 |
US7504349B2 (en) | 2009-03-17 |
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CA2566279A1 (en) | 2006-01-05 |
US20050277550A1 (en) | 2005-12-15 |
ES2783985T3 (es) | 2020-09-21 |
WO2006001882A3 (en) | 2007-12-13 |
CN101309874B (zh) | 2012-02-15 |
US7176152B2 (en) | 2007-02-13 |
HUE048920T2 (hu) | 2020-08-28 |
DK1784367T3 (da) | 2020-03-30 |
CA2566279C (en) | 2011-02-08 |
EP1784367A2 (en) | 2007-05-16 |
JP2008504667A (ja) | 2008-02-14 |
CN101309874A (zh) | 2008-11-19 |
KR20070015451A (ko) | 2007-02-02 |
US20070108423A1 (en) | 2007-05-17 |
KR101154928B1 (ko) | 2012-07-09 |
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