JP2021031380A - 誘電体磁器組成物及びこれを含む積層セラミックキャパシタ - Google Patents
誘電体磁器組成物及びこれを含む積層セラミックキャパシタ Download PDFInfo
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- JP2021031380A JP2021031380A JP2020098950A JP2020098950A JP2021031380A JP 2021031380 A JP2021031380 A JP 2021031380A JP 2020098950 A JP2020098950 A JP 2020098950A JP 2020098950 A JP2020098950 A JP 2020098950A JP 2021031380 A JP2021031380 A JP 2021031380A
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- 239000000203 mixture Substances 0.000 title claims abstract description 55
- 239000003985 ceramic capacitor Substances 0.000 title claims abstract description 37
- 239000000919 ceramic Substances 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 63
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 53
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 43
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052573 porcelain Inorganic materials 0.000 claims description 37
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 229910002113 barium titanate Inorganic materials 0.000 abstract description 5
- 239000004615 ingredient Substances 0.000 abstract 3
- 239000002075 main ingredient Substances 0.000 abstract 2
- 238000009413 insulation Methods 0.000 description 25
- 230000000052 comparative effect Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 11
- 230000006872 improvement Effects 0.000 description 11
- 230000007423 decrease Effects 0.000 description 10
- 229910052761 rare earth metal Inorganic materials 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 239000002019 doping agent Substances 0.000 description 9
- 238000010304 firing Methods 0.000 description 9
- 239000010949 copper Substances 0.000 description 8
- 229910052746 lanthanum Inorganic materials 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 239000000654 additive Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 101000939676 Androctonus crassicauda Toxin a Proteins 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- -1 as subcomponents Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
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- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
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- 229910052719 titanium Inorganic materials 0.000 description 1
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Abstract
Description
本発明の一実施形態による誘電体磁器組成物はBaTiO3で示される母材主成分を含むことができる。
本発明の一実施形態によると、上記誘電体磁器組成物は、第1副成分元素としてジスプロシウム(Dy)及びセリウム(Ce)を必ず含み、これに加えて、上記母材主成分100モル%に対して0.233モル%以上0.699モル%以下のランタン(La)酸化物又は炭酸塩をさらに含むことができる。
本発明の一実施形態によると、上記誘電体磁器組成物は、第2副成分として、Mn、V、Cr、Fe、Ni、Co、Cu及びZnのうち少なくとも一つを含む酸化物又は炭酸塩を含むことができる。
本発明の一実施形態によると、上記誘電体磁器組成物は、原子価固定アクセプタ(fixed−valence acceptor)元素のMgを含む酸化物又は炭酸塩である第3副成分を含むことができる。
本発明の一実施形態によると、上記誘電体磁器組成物は、第4副成分として、Si及びAlのうち少なくとも一つを含む酸化物、又はSiを含むガラス(Glass)化合物を含むことができる。
本発明の実施例は、チタン酸バリウム(BaTiO3)粉末を含む誘電体原料粉末に、Dy、Ce、La、Al、Mg、Mnなどの添加剤、バインダー及びエタノールなどの有機溶媒を添加し、湿式混合して誘電体スラリーを設けた後、上記誘電体スラリーをキャリアフィルム上に塗布及び乾燥してセラミックグリーンシートを設けた。これにより、誘電体層を形成することができる。
比較例1は、従来の場合であって、母材主成分100モル%に対してジスプロシウム(Dy)を0.932モル%添加したものであり、その他の制作過程は、上述した実施例の場合と同様である。
比較例2は、母材主成分100モル%に対してジスプロシウム(Dy)0.699モル%及びセリウム(Ce)0.233モル%を添加したものであり、その他の制作過程は、上述した実施例の場合と同様である。
比較例3は、母材主成分100モル%に対してセリウム(Ce)を0.932モル%添加したものであり、その他の制作過程は、上述した実施例の場合と同様である。
111 誘電体層
121、122 第1及び第2内部電極
131、132 第1及び第2外部電極
Claims (14)
- BaTiO3系母材主成分と副成分を含み、前記副成分は、第1副成分としてジスプロシウム(Dy)及びセリウム(Ce)を含み、
前記ジスプロシウム(Dy)及びセリウム(Ce)の合計含有量は、前記母材主成分100モル%に対して0.25モル%超過1.0モル%以下である、誘電体磁器組成物。 - 前記セリウム(Ce)の含有量が、前記母材主成分100モル%に対して0.233モル%<Ce<0.932モル%を満たす、請求項1に記載の誘電体磁器組成物。
- 前記第1副成分はLaを含む酸化物又は炭酸塩をさらに含む、請求項1または2に記載の誘電体磁器組成物。
- 前記誘電体磁器組成物は、前記母材主成分100モルに対して、Mn、V、Cr、Fe、Ni、Co、Cu及びZnのうち少なくとも一つを含む酸化物又は炭酸塩である0.1〜2.0モルの第2副成分を含む、請求項1から3のいずれか一項に記載の誘電体磁器組成物。
- 前記誘電体磁器組成物は、前記母材主成分100モルに対して、原子価固定アクセプタ(fixed−valence acceptor)元素のMgを含む酸化物又は炭酸塩である0.001〜0.5モルの第3副成分を含む、請求項1から4のいずれか一項に記載の誘電体磁器組成物。
- 前記誘電体磁器組成物は、前記母材主成分100モルに対して、Si及びAlのうち少なくとも一つを含む酸化物、又はSiを含むガラス(Glass)化合物である0.001〜4.0モルの第4副成分を含む、請求項1から5のいずれか一項に記載の誘電体磁器組成物。
- 誘電体層、及び前記誘電体層を間に挟んで互いに対向するように配置される第1内部電極及び第2内部電極を含むセラミック本体と、
前記セラミック本体の外側に配置され、且つ第1内部電極と電気的に連結される第1外部電極、及び前記第2内部電極と電気的に連結される第2外部電極と、を含み、
前記誘電体層は、誘電体磁器組成物を含む誘電体グレインを含み、
前記誘電体磁器組成物は、BaTiO3系母材主成分と副成分を含み、前記副成分は、第1副成分としてジスプロシウム(Dy)及びセリウム(Ce)を含み、
前記ジスプロシウム(Dy)及びセリウム(Ce)の合計含有量は、前記母材主成分100モル%に対して0.25モル%超過1.0モル%以下である、積層セラミックキャパシタ。 - 前記セリウム(Ce)の含有量が前記母材主成分100モル%に対して0.233モル%<Ce<0.932モル%を満たす、請求項7に記載の積層セラミックキャパシタ。
- 前記第1副成分はLaを含む酸化物又は炭酸塩をさらに含み、前記Laは前記誘電体グレインのうちグレイン粒界に配置される、請求項7または8に記載の積層セラミックキャパシタ。
- 前記誘電体磁器組成物は、前記母材主成分100モルに対して、Mn、V、Cr、Fe、Ni、Co、Cu及びZnのうち少なくとも一つを含む酸化物又は炭酸塩である0.1〜2.0モルの第2副成分を含む、請求項7から9のいずれか一項に記載の積層セラミックキャパシタ。
- 前記誘電体磁器組成物は、前記母材主成分100モルに対して、原子価固定アクセプタ(fixed−valence acceptor)元素のMgを含む酸化物又は炭酸塩である0.001〜0.5モルの第3副成分を含む、請求項7から10のいずれか一項に記載の積層セラミックキャパシタ。
- 前記誘電体磁器組成物は、前記母材主成分100モルに対して、Si及びAlのうち少なくとも一つを含む酸化物、又はSiを含むガラス(Glass)化合物である0.001〜4.0モルの第4副成分を含む、請求項7から11のいずれか一項に記載の積層セラミックキャパシタ。
- 前記誘電体層の厚さは0.4μm以下である、請求項7から12のいずれか一項に記載の積層セラミックキャパシタ。
- 前記積層セラミックキャパシタのサイズは1005(長さ×幅、1.0mm×0.5mm)以下である、請求項7から13のいずれか一項に記載の積層セラミックキャパシタ。
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KR20130106569A (ko) * | 2012-03-20 | 2013-09-30 | 삼성전기주식회사 | 유전체 조성물 및 이를 포함하는 세라믹 전자부품 |
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KR102171677B1 (ko) * | 2015-01-05 | 2020-10-29 | 삼성전기주식회사 | 유전체 자기 조성물, 유전체 재료 및 이를 포함하는 적층 세라믹 커패시터 |
KR101792368B1 (ko) | 2015-12-24 | 2017-11-20 | 삼성전기주식회사 | 유전체 자기 조성물, 유전체 재료 및 이를 포함하는 적층 세라믹 커패시터 |
KR102516759B1 (ko) * | 2016-01-05 | 2023-03-31 | 삼성전기주식회사 | 유전체 자기 조성물, 이를 포함하는 적층 세라믹 커패시터 및 적층 세라믹 커패시터의 제조 방법 |
KR101987214B1 (ko) * | 2017-10-13 | 2019-06-10 | 삼성전기주식회사 | 적층 세라믹 커패시터 |
KR20190116153A (ko) * | 2019-08-20 | 2019-10-14 | 삼성전기주식회사 | 유전체 자기 조성물 및 이를 포함하는 적층 세라믹 커패시터 |
-
2019
- 2019-08-20 KR KR1020190101517A patent/KR20190116153A/ko not_active Application Discontinuation
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2020
- 2020-02-11 US US16/788,063 patent/US11302475B2/en active Active
- 2020-04-07 CN CN202310173662.8A patent/CN115966403A/zh active Pending
- 2020-04-07 CN CN202010264305.9A patent/CN112420383B/zh active Active
- 2020-06-05 JP JP2020098950A patent/JP2021031380A/ja active Pending
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2021
- 2021-10-27 US US17/512,176 patent/US11735362B2/en active Active
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022270270A1 (ja) * | 2021-06-23 | 2022-12-29 | 株式会社村田製作所 | 積層セラミックコンデンサ |
JP2023079141A (ja) * | 2021-11-26 | 2023-06-07 | サムソン エレクトロ-メカニックス カンパニーリミテッド. | 積層セラミックキャパシタ |
US11875943B2 (en) | 2021-11-26 | 2024-01-16 | Samsung Electro-Mechanics Co., Ltd. | Multilayer ceramic capacitor |
Also Published As
Publication number | Publication date |
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KR20190116153A (ko) | 2019-10-14 |
US20220051850A1 (en) | 2022-02-17 |
CN112420383B (zh) | 2023-03-10 |
CN112420383A (zh) | 2021-02-26 |
US11302475B2 (en) | 2022-04-12 |
CN115966403A (zh) | 2023-04-14 |
US11735362B2 (en) | 2023-08-22 |
US20210057156A1 (en) | 2021-02-25 |
US20230343518A1 (en) | 2023-10-26 |
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