JP2020021921A - 積層セラミックキャパシタ及びその製造方法 - Google Patents
積層セラミックキャパシタ及びその製造方法 Download PDFInfo
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- 239000003985 ceramic capacitor Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000000919 ceramic Substances 0.000 claims abstract description 173
- 239000010410 layer Substances 0.000 claims abstract description 44
- 239000012790 adhesive layer Substances 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims description 27
- 230000001070 adhesive effect Effects 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 24
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 11
- 239000000843 powder Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 229910002113 barium titanate Inorganic materials 0.000 description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000002003 electrode paste Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- 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
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- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
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- H01G4/002—Details
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Abstract
Description
(実験例)
本発明の一実施形態によって、側面用セラミックグリーンシートのみでサイドマージン部を形成した比較例と、上部に接着剤が塗布された側面用セラミックグリーンシートでサイドマージン部を形成した実施例をそれぞれ準備した。
111 誘電体層
112、113 第1及び第2サイドマージン部
121、122 第1及び第2内部電極
131、132 第1及び第2外部電極
140 接着層
Claims (10)
- 誘電体層を含み、互いに対向する第1面及び第2面、前記第1面と第2面を連結する第3面及び第4面を有するセラミック本体と、
前記セラミック本体の内部に配置され、前記第1及び第2面に露出し、且つ前記第3面または第4面に一端が露出する複数の内部電極と、
前記第1面及び第2面に露出した前記内部電極の端部上に配置された第1サイドマージン部及び第2サイドマージン部と、を含む積層セラミックキャパシタであって、
前記セラミック本体の第1面及び第2面と前記第1サイドマージン部及び第2サイドマージン部との間には、それぞれ接着層が配置されており、
前記第1及び第2サイドマージン部の平均厚さが2μm以上10μm以下である、積層セラミックキャパシタ。 - 前記複数の内部電極のうち、中央部に配置される内部電極の末端と接する前記第1または第2サイドマージン部領域の厚さに対して、最外側に配置される内部電極の末端と接する前記第1または第2サイドマージン部領域の厚さの比率が1.0以下である、請求項1に記載の積層セラミックキャパシタ。
- 前記複数の内部電極のうち、中央部に配置される内部電極の末端と接する前記第1または第2サイドマージン部領域の厚さに対して、前記セラミック本体の角と接する前記第1または第2サイドマージン部領域の厚さの比率が1.0以下である、請求項1または2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が0.4μm以下、前記内部電極の厚さが0.4μm以下の、請求項1から3のいずれか一項に記載の積層セラミックキャパシタ。
- 複数個の第1内部電極パターンが所定の間隔を置いて形成された第1セラミックグリーンシート、及び複数個の第2内部電極パターンが所定の間隔を置いて形成された第2セラミックグリーンシートを製造する段階と、
前記第1内部電極パターンと前記第2内部電極パターンが交差されるように前記第1セラミックグリーンシートと前記第2セラミックグリーンシートを積層することで、セラミックグリーンシート積層本体を形成する段階と、
前記第1内部電極パターンと第2内部電極パターンの末端が幅方向に露出した側面を有するように、前記セラミックグリーンシート積層本体を切断する段階と、
前記第1内部電極パターンと第2内部電極パターンの末端が露出した側面に、接着剤が塗布された側面用セラミックシートを付着することで、第1サイドマージン部及び第2サイドマージン部を形成する段階と、を含む積層セラミックキャパシタの製造方法であって、
前記第1及び第2セラミックグリーンシートの厚さが0.6μm以下、前記第1及び第2内部電極パターンの厚さが0.5μm以下の、積層セラミックキャパシタの製造方法。 - 前記側面用セラミックシート上に前記接着剤を印刷方法により塗布する、請求項5に記載の積層セラミックキャパシタの製造方法。
- 前記第1及び第2サイドマージン部の平均厚さが2μm以上10μm以下である、請求項5または6に記載の積層セラミックキャパシタの製造方法。
- 前記複数個の第1及び第2内部電極パターンのうち、中央部に配置される内部電極パターンの末端と接する前記第1または第2サイドマージン部領域の厚さに対して、最外側に配置される内部電極パターンの末端と接する前記第1または第2サイドマージン部領域の厚さの比率が1.0以下である、請求項5から7のいずれか一項に記載の積層セラミックキャパシタの製造方法。
- 前記複数個の第1及び第2内部電極パターンのうち、中央部に配置される内部電極の末端と接する前記第1または第2サイドマージン部領域の厚さに対して、前記セラミックグリーンシート積層本体の角と接する前記第1または第2サイドマージン部領域の厚さの比率が1.0以下である、請求項5から8のいずれか一項に記載の積層セラミックキャパシタの製造方法。
- 前記第1サイドマージン部及び第2サイドマージン部を形成する段階の後に、
前記セラミックグリーンシート積層本体を焼成することで、幅方向の側面に第1及び第2サイドマージン部が配置されたセラミック本体を製造する段階をさらに含む、請求項5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の製造方法。
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KR20230090738A (ko) * | 2021-12-15 | 2023-06-22 | 삼성전기주식회사 | 적층 세라믹 커패시터의 제조 방법 및 적층 세라믹 커패시터 |
Citations (5)
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JP2012209539A (ja) * | 2011-03-14 | 2012-10-25 | Murata Mfg Co Ltd | 積層セラミック電子部品の製造方法 |
JP2016001721A (ja) * | 2014-05-21 | 2016-01-07 | 株式会社村田製作所 | 積層セラミックコンデンサ |
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KR101862396B1 (ko) * | 2011-09-08 | 2018-05-30 | 삼성전기주식회사 | 적층 세라믹 전자부품 및 이의 제조방법 |
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US20200043667A1 (en) | 2020-02-06 |
CN110853921B (zh) | 2022-11-22 |
US20200043668A1 (en) | 2020-02-06 |
KR102597153B1 (ko) | 2023-11-02 |
KR20190121135A (ko) | 2019-10-25 |
CN110853921A (zh) | 2020-02-28 |
US10937595B2 (en) | 2021-03-02 |
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