JPWO2019187763A1 - バリスタおよびその製造方法 - Google Patents
バリスタおよびその製造方法 Download PDFInfo
- Publication number
- JPWO2019187763A1 JPWO2019187763A1 JP2020510401A JP2020510401A JPWO2019187763A1 JP WO2019187763 A1 JPWO2019187763 A1 JP WO2019187763A1 JP 2020510401 A JP2020510401 A JP 2020510401A JP 2020510401 A JP2020510401 A JP 2020510401A JP WO2019187763 A1 JPWO2019187763 A1 JP WO2019187763A1
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- Prior art keywords
- color difference
- sintered body
- varistor
- linear resistor
- voltage non
- 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.)
- Granted
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- 238000004519 manufacturing process Methods 0.000 title claims description 20
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 149
- 239000011787 zinc oxide Substances 0.000 claims abstract description 66
- 239000002245 particle Substances 0.000 claims description 52
- 239000000203 mixture Substances 0.000 claims description 36
- 239000000843 powder Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 238000010304 firing Methods 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 7
- 229910052797 bismuth Inorganic materials 0.000 claims description 5
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 5
- 239000002003 electrode paste Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052712 strontium Inorganic materials 0.000 claims description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims 5
- 229910052777 Praseodymium Inorganic materials 0.000 claims 2
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 239000003960 organic solvent Substances 0.000 claims 1
- 239000013078 crystal Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 6
- 239000007858 starting material Substances 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910000410 antimony oxide Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910000416 bismuth oxide Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- LBFUKZWYPLNNJC-UHFFFAOYSA-N cobalt(ii,iii) oxide Chemical compound [Co]=O.O=[Co]O[Co]=O LBFUKZWYPLNNJC-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 229910000480 nickel oxide Inorganic materials 0.000 description 2
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 2
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- FAWGZAFXDJGWBB-UHFFFAOYSA-N antimony(3+) Chemical compound [Sb+3] FAWGZAFXDJGWBB-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C04B35/453—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 zinc, tin, or bismuth oxides or solid solutions thereof with other oxides, e.g. zincates, stannates or bismuthates
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- H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
- H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
- H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits
- H01C17/06513—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component
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- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
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Abstract
Description
10 素体(電圧非直線性抵抗体組成物)
10a バリスタ層
10b 無効層
11 内部電極(第1電極)
12 内部電極(第2電極)
13 外部電極
14 外部電極
10c 酸化亜鉛粒子
10d 酸化物層
20 スラリー
21 フィルム
Claims (13)
- 複数の酸化亜鉛粒子と、
前記複数の酸化亜鉛粒子間に設けられ、ビスマス元素、プラセオジム元素およびストロンチウム元素のうち少なくとも1種の元素を含む酸化物層と、
を有する電圧非直線性抵抗体組成物の焼結体を備え、
前記焼結体の前記電圧非直線性抵抗体組成物のL*a*b*表色系における色差b*が0<b*≦0.95の範囲を満たす、バリスタ。 - 前記複数の酸化亜鉛粒子のL*a*b*表色系における色差b*が−5<b*≦11.3を満たす、請求項1に記載のバリスタ。
- ビスマス元素とプラセオジム元素とストロンチウム元素とのうち少なくとも1種を含む酸化物粉末と、酸化亜鉛粉末とを含む混合粉末を準備するステップと、
前記混合粉末から成形体を得るステップと、
前記成形体を焼成して電圧非直線性抵抗体組成物の焼結体を得るステップと、
前記焼結体の前記電圧非直線性抵抗体組成物の色差を測定するステップと、
前記測定された色差に基づき前記焼結体の良否を判定するステップと、
を含む、バリスタの製造方法。 - 前記焼結体の前記電圧非直線性抵抗体組成物の前記色差を測定する前記ステップは、前記焼結体の前記電圧非直線性抵抗体組成物のL*a*b*表色系における色差b*を測定するステップを含み、
前記焼結体の良否を判定する前記ステップは、前記測定された色差b*が0<b*≦0.95の範囲にあるか否かを判定するステップを含む、請求項3に記載のバリスタの製造方法。 - 前記成形体を得る前記ステップは、前記混合粉末から1つ以上の成形体を得るステップを含み、
前記成形体を焼成して前記焼結体を得る前記ステップは、前記1つ以上の成形体を焼成して前記電圧非直線性抵抗体組成物の1つ以上の焼結体を得るステップを含み、
前記焼結体の前記電圧非直線性抵抗体組成物の前記色差を測定する前記ステップは、前記1つ以上の焼結体の前記電圧非直線性抵抗体組成物の色差を測定するステップを含み、
前記測定された色差に基づき前記焼結体の良否を判定する前記ステップは、前記測定された色差に基づき前記1つ以上の焼結体の良否を判定するステップを含み、
前記1つ以上の焼結体の良否の判定の結果に基づいて、前記1つ以上の焼結体から或る焼結体を選別するステップをさらに含む、請求項1に記載のバリスタの製造方法。 - 前記1つ以上の焼結体の前記電圧非直線性抵抗体組成物の前記色差を測定する前記ステップは、前記1つ以上の焼結体の前記電圧非直線性抵抗体組成物のL*a*b*表色系における色差b*を測定するステップを含み、
前記1つ以上の焼結体の良否を判定する前記ステップは、前記1つ以上の焼結体の前記電圧非直線性抵抗体組成物の前記測定された色差b*が0<b*≦0.95の範囲にあるか否かを判定するステップを含み、
前記1つ以上の焼結体の良否の判定の結果に基づいて、前記1つ以上の焼結体から前記或る焼結体を選別する前記ステップは、前記1つ以上の焼結体のうち前記1つ以上の焼結体の前記電圧非直線性抵抗体組成物の前記測定された色差b*が0<b*≦0.95の範囲にある焼結体を前記或る焼結体として選別するステップを含む、請求項5に記載のバリスタの製造方法。 - 前記或る焼結体に電極を形成するステップをさらに含む、請求項6に記載のバリスタの製造方法。
- 前記酸化亜鉛粉末のL*a*b*表色系における色差b*が−5<b*≦11.3を満たす、請求項3から7のいずれか一項に記載のバリスタの製造方法。
- 前記成形体を得る前記ステップは、
前記混合粉末からスラリーを得るステップと、
前記スラリーを成形することにより複数のグリーンシートを得るステップと、
前記複数のグリーンシートと電極ペーストとが積層されてなる積層体を得るステップと、
を含み、
前記焼結体を得る前記ステップは、前記積層体を焼成して前記焼結体を得るステップを含む、請求項3から8のいずれか一項に記載のバリスタの製造方法。 - 前記複数のグリーンシートを得る前記ステップは、フィルム上に前記スラリーを塗布するステップを含む、請求項9に記載のバリスタの製造方法。
- 前記スラリーは有機溶剤をさらに含む、請求項9または10に記載のバリスタの製造方法。
- 前記成形体を得るステップは、前記混合粉末を加圧成形して前記成形体を得るステップを含む、請求項3から8のいずれか一項に記載のバリスタの製造方法。
- 前記焼結体に金属ペーストを塗布して熱処理を行うことで電極を得るステップをさらに含む、請求項11または12に記載のバリスタの製造方法。
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