JP6036803B2 - 積層体の製造方法、および積層体 - Google Patents
積層体の製造方法、および積層体 Download PDFInfo
- Publication number
- JP6036803B2 JP6036803B2 JP2014502396A JP2014502396A JP6036803B2 JP 6036803 B2 JP6036803 B2 JP 6036803B2 JP 2014502396 A JP2014502396 A JP 2014502396A JP 2014502396 A JP2014502396 A JP 2014502396A JP 6036803 B2 JP6036803 B2 JP 6036803B2
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- JP
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- Prior art keywords
- tin
- layer
- zinc
- carbon
- dielectric layer
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims description 30
- 229910052751 metal Inorganic materials 0.000 claims description 82
- 239000002184 metal Substances 0.000 claims description 82
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 78
- 229910052718 tin Inorganic materials 0.000 claims description 78
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 74
- 229910052725 zinc Inorganic materials 0.000 claims description 74
- 239000011701 zinc Substances 0.000 claims description 74
- 229910052799 carbon Inorganic materials 0.000 claims description 62
- BNEMLSQAJOPTGK-UHFFFAOYSA-N zinc;dioxido(oxo)tin Chemical compound [Zn+2].[O-][Sn]([O-])=O BNEMLSQAJOPTGK-UHFFFAOYSA-N 0.000 claims description 53
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 47
- 238000004544 sputter deposition Methods 0.000 claims description 40
- 239000000758 substrate Substances 0.000 claims description 34
- 230000015572 biosynthetic process Effects 0.000 claims description 25
- 230000004888 barrier function Effects 0.000 claims description 24
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 17
- 125000004432 carbon atom Chemical group C* 0.000 claims description 17
- 150000001721 carbon Chemical group 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 230000003647 oxidation Effects 0.000 claims description 14
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- 238000001755 magnetron sputter deposition Methods 0.000 description 12
- 229910052709 silver Inorganic materials 0.000 description 12
- 239000004332 silver Substances 0.000 description 12
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 11
- 239000011651 chromium Substances 0.000 description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 9
- 229910052804 chromium Inorganic materials 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- 239000010703 silicon Substances 0.000 description 9
- 229910052719 titanium Inorganic materials 0.000 description 9
- 239000010936 titanium Substances 0.000 description 9
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 8
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 8
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- 239000011777 magnesium Substances 0.000 description 8
- 239000011787 zinc oxide Substances 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 6
- 239000005357 flat glass Substances 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 5
- 239000005340 laminated glass Substances 0.000 description 5
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- 125000006850 spacer group Chemical group 0.000 description 5
- 241000519995 Stachys sylvatica Species 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 4
- 229910001887 tin oxide Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
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- 239000005361 soda-lime glass Substances 0.000 description 3
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
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- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910018137 Al-Zn Inorganic materials 0.000 description 1
- 229910018573 Al—Zn Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910020994 Sn-Zn Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910009069 Sn—Zn Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 229920006127 amorphous resin Polymers 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 239000005328 architectural glass Substances 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
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- 238000001816 cooling Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- 239000005329 float glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 238000007372 rollout process Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- GZCWPZJOEIAXRU-UHFFFAOYSA-N tin zinc Chemical compound [Zn].[Sn] GZCWPZJOEIAXRU-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- 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
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- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
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- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
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- B32B17/10229—Metallic layers sandwiched by dielectric layers
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- C03C17/366—Low-emissivity or solar control coatings
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- 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
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0021—Reactive sputtering or evaporation
- C23C14/0036—Reactive sputtering
- C23C14/0057—Reactive sputtering using reactive gases other than O2, H2O, N2, NH3 or CH4
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
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- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/211—SnO2
-
- 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
- C03C2217/00—Coatings on glass
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- C03C2217/21—Oxides
- C03C2217/216—ZnO
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- C—CHEMISTRY; METALLURGY
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- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/228—Other specific oxides
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- 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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/15—Deposition methods from the vapour phase
- C03C2218/154—Deposition methods from the vapour phase by sputtering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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Description
本発明の積層体の製造方法は、誘電体層、金属層、および誘電体層をこの順に透明基体上に形成する第1の工程と、第1の工程後、スズと亜鉛との酸化物を主成分とするスズ亜鉛酸化物層を形成する第2の工程とを有する。第2の工程におけるスズ亜鉛酸化物層の形成は、炭素原子を含むガスが実質的に酸化ガスとして機能するガス雰囲気中、スズと亜鉛とを主成分とする金属ターゲットを用いたスパッタリングにより行う。第1の工程における誘電体層の形成は、炭素原子を含まないガスが実質的に酸化ガスとして機能するガス雰囲気中で行う。
前記した第1の工程において各層を形成するスパッタリング法としては、特に限定されず、RF(高周波)マグネトロンスパッタリング法、DC(直流)マグネトロンスパッタリング法、ACマグネトロンスパッタリング法などが挙げられる。DCマグネトロンスパッタリング法は、建築物、自動車、車両等に用いられるガラスのような大面積の基体に低コストで生産性良く、かつ均一に形成するのに好適である。
ただし、本発明はこれら実施例により限定されない。
充分に洗浄したソーダライムシリカガラス(10cm×10cm×3mm厚)の基板上に、表1に示すような層構成となるように、直流スパッタ法により表2に示す各層の成膜条件で成膜を行って積層体を製造した。なお、例1〜3が本発明の実施例であり、例4〜8が本発明の比較例である。
また、C:ZnSnxOy層の成膜時のCO2流量は、100sccm、C:ZnAlxOy層の成膜時のCO2流量は、100sccmとした。また、ArとO2との混合ガスは、Ar:30sccm、O2:70sccmとした。表3中、「○」は内部応力が230MPa以下(圧縮応力)であったものを示し、「△」は231〜500MPa(圧縮応力)であったものを示し、「×」は501MPa以上(圧縮応力)であったものを示す。
積層体の耐湿性を評価した。評価は、積層体を、温度50℃、湿度90%RHの恒温槽に2週間保持後、100mm角における直径0.5mm以上の白点状斑点の個数の測定により行った。結果を表4に示す。なお、評価は、例1、2、4、5の積層体についてのみ行い、「○」は白点状斑点の個数(個数/100mm角)が10個未満であったものを示し、「×」は白点状斑点の個数(個数/100mm角)が10個以上であったものを示す。
積層体における金属層(Ag−Pd層)の結晶性を評価した。評価は、XRD装置によるθ/2θ測定の回折ピークプロファイルにおける、ピーク強度と半値幅とにより行った。結果を表5に示す。なお、評価は、例1、4、6の積層体について行った。表5中、「○」はAg(111)ピークカウント[cps]を2θ半値幅[°]で除した数値が、6000以上であったものを示し、「△」は3000以上6000未満であったものを示し、「×」は3000未満であったものを示す。
積層体における耐擦傷性を評価した。評価は、ERICHSEN社製の「モデル494 耐洗浄性 洗浄試験機」を用い、槽に水を張り、荷重を加えたパットを用い、100mm角の試験片上を500回往復または1000回往復させ、該試験片の表面を目視により観察した。結果を表6に示す。表6中、「○」はキズ、膜剥離が無かったものを示し、「△」は微細なキズ、もしくはエッジ部のみで膜剥離が発生したものを示し、「×」は重度のキズ、もしくは中央部分にも膜剥離があったものを示す。
また、本発明の積層体によれば、特に、誘電体層、金属層、および誘電体層がこの順に形成された単位層上に、スズと亜鉛との酸化物を主成分とし、スズと亜鉛との総量に対して炭素を0.1原子%以上含有するスズ亜鉛酸化物層を有することで、耐湿性および耐擦傷性を向上できる。
なお、2012年2月28日に出願された日本特許出願2012−041393号の明細書、特許請求の範囲、図面および要約書の全内容をここに引用し、本発明の開示として取り入れるものである。
Claims (15)
- 炭素を実質的に含有しない誘電体層、金属層、バリア層、および炭素を実質的に含有しない誘電体層をこの順に透明基体上に形成する第1の工程と、
前記第1の工程によりバリア層上に形成された炭素を実質的に含有しない誘電体層に接するように、スズと亜鉛との酸化物を主成分するスズ亜鉛酸化物層を形成する第2の工程と
を有する積層体の製造方法であって、
前記第2の工程におけるスズ亜鉛酸化物層の形成は、炭素原子を含むガスが実質的に酸化ガスとして機能するガス雰囲気中でスズと亜鉛とを主成分とする金属ターゲットを用いたスパッタリングにより行い、
前記第1の工程における炭素を実質的に含有しない誘電体層の形成は、炭素原子を含まないガスが実質的に酸化ガスとして機能するガス雰囲気中で行い、
全てのバリア層は、スズと亜鉛との総量に対して炭素を0.1原子%以上含有するスズ亜鉛酸化物層に接していない
ことを特徴とする積層体の製造方法。 - 前記第1の工程後に前記第2の工程を行う組み合わせを1以上行う請求項1に記載の積層体の製造方法。
- 前記第2の工程に使用する金属ターゲットは、スズと亜鉛との合計量中、スズを20〜80質量%含有する請求項1または2に記載の積層体の製造方法。
- 前記スズ亜鉛酸化物層の厚さは3nm以上である請求項1乃至3のいずれか1項に記載の積層体の製造方法。
- 前記第1の工程前に、炭素原子を含むガスを含有する雰囲気中、スズと亜鉛とを主成分とする金属ターゲットを用いたスパッタリングにより、スズと亜鉛との酸化物を主成分とする下地層を形成する予備工程を有する請求項1乃至3のいずれか1項に記載の積層体の製造方法。
- 前記予備工程に使用する金属ターゲットは、スズと亜鉛との合計量中、スズを20〜80重量%含有する請求項5に記載の積層体の製造方法。
- 前記下地層の厚さは3nm以上である請求項5または6に記載の積層体の製造方法。
- 前記第1の工程における炭素を実質的に含有しない誘電体層の形成は、炭素原子を含まないガスが実質的に酸化ガスとして機能するガス雰囲気中で亜鉛を主成分とする金属ターゲットを用いたスパッタリングにより行う請求項1乃至7のいずれか1項に記載の積層体の製造方法。
- 前記第1の工程における炭素を実質的に含有しない誘電体層の形成に用いられる金属ターゲットは、アルミニウムと亜鉛とを主成分とし、アルミニウムと亜鉛との合計量中、アルミニウムを0.1〜10重量%含有する請求項8に記載の積層体の製造方法。
- 前記第1の工程における炭素を実質的に含有しない誘電体層の厚さは1nm以上である請求項1乃至9のいずれか1項に記載の積層体の製造方法。
- 透明基体と、
前記透明基体上に形成され、炭素を実質的に含有しない誘電体層、金属層、バリア層、および炭素を実質的に含有しない誘電体層を前記透明基体側からこの順に有する単位層と、
前記単位層におけるバリア層上に形成された炭素を実質的に含有しない誘電体層に接するように形成され、スズと亜鉛との酸化物を主成分とし、スズと亜鉛との総量に対して炭素を0.1原子%以上含有するスズ亜鉛酸化物層と、
を有し、
全てのバリア層は、スズと亜鉛との総量に対して炭素を0.1原子%以上含有するスズ亜鉛酸化物層に接していない積層体。 - 前記単位層と前記スズ亜鉛酸化物層との組み合わせを1以上有する請求項11に記載の積層体。
- 前記スズ亜鉛酸化物層が、スズと亜鉛との総量に対して炭素を0.1原子%以上、10原子%以下含有する請求項11または12に記載の積層体。
- 前記スズ亜鉛酸化物層は、スズと亜鉛との合計量中、スズを20〜80質量%含有する請求項11乃至13のいずれか1項に記載の積層体。
- 前記透明基体と、前記単位層のうち前記透明基体上に最初に形成される単位層との間に、スズと亜鉛との酸化物を主成分とし、炭素を0.1原子%以上含有する下地層を有する請求項11乃至14のいずれか1項に記載の積層体。
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