JP6138442B2 - 積層セラミック電子部品及びその製造方法 - Google Patents
積層セラミック電子部品及びその製造方法 Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims description 177
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000000843 powder Substances 0.000 claims description 106
- 239000002245 particle Substances 0.000 claims description 50
- 230000001186 cumulative effect Effects 0.000 claims description 27
- 239000002002 slurry Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000003985 ceramic capacitor Substances 0.000 description 15
- 230000015556 catabolic process Effects 0.000 description 10
- 230000032798 delamination Effects 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 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
- 229910002113 barium titanate Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 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
- C04B35/01—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
- C04B35/46—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
- C04B35/462—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
- C04B35/465—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
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
- H01G4/1209—Ceramic dielectrics characterised by the ceramic dielectric material
- H01G4/1218—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates
- H01G4/1227—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates based on alkaline earth titanates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
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- C04B2235/74—Physical characteristics
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- C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
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- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
- C04B2235/785—Submicron sized grains, i.e. from 0,1 to 1 micron
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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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1089—Methods of surface bonding and/or assembly therefor of discrete laminae to single face of additional lamina
- Y10T156/1092—All laminae planar and face to face
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- Engineering & Computer Science (AREA)
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- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Ceramic Capacitors (AREA)
Description
21、22 第1及び第2内部電極
31、32 外部電極
10 セラミック素体
11 仮想の中心線
td 誘電体層の平均厚さ
te 内部電極層の平均厚さ
Ra 内部電極中心線の平均粗さ
Claims (17)
- 誘電体層を含むセラミック本体と、
前記セラミック本体内に前記誘電体層を介して対向配置される第1及び第2内部電極と、を含み、
前記誘電体層内の誘電体グレインの粒径の累積分布において、1%の値をD1、50%の値をD50及び99%の値をD99とするとき、2≦D99/D50≦3及び2≦D50/D1≦3を満たし、前記誘電体層の平均厚さtdは、0.1μm≦td≦0.5μmを満たし、前記誘電体層の平均厚さtdと前記誘電体グレインの粒径の累積分布50%の値であるD50は、td/8≦D50≦td/3の関係を満たす積層セラミック電子部品。 - 前記誘電体層の中心線の平均粗さをRaとするとき、5nm≦Ra≦30nmを満たす請求項1に記載の積層セラミック電子部品。
- 前記誘電体層に用いられるセラミック粉末は、第1セラミック粉末と第1セラミック粉末より平均粒径が小さい第2セラミック粉末を含む請求項1に記載の積層セラミック電子部品。
- 前記第1セラミック粉末の平均粒径は、前記第2セラミック粉末の平均粒径の1.5倍から4.5倍である請求項3に記載の積層セラミック電子部品。
- 前記セラミック粉末は、70〜99重量部の第1セラミック粉末と1〜30重量部の第2セラミック粉末を含む請求項3に記載の積層セラミック電子部品。
- 誘電体層を含むセラミック本体と、
前記セラミック本体内に前記誘電体層を介して対向配置される第1及び第2内部電極と、を含み、
前記誘電体層の平均厚さをtdとするとき、0.1μm≦td≦0.5μmで、
前記誘電体層内の誘電体グレインの粒径の累積分布において、1%の値をD1、50%の値をD50及び99%の値をD99とするとき、2≦D99/D50≦3及び2≦D50/D1≦3を満たし、td/8≦D50≦td/3を満たす積層セラミック電子部品。 - 前記誘電体層の中心線の平均粗さをRaとするとき、5nm≦Ra≦30nmを満たす請求項6に記載の積層セラミック電子部品。
- 前記第1及び第2内部電極の平均厚さをteとするとき、0.1μm≦te≦0.5μmを満たす請求項6に記載の積層セラミック電子部品。
- 前記誘電体層の平均厚さtdは、前記セラミック本体の幅(W)方向の中央部で切断した長さ及び厚さ方向(L−T)の断面における誘電体層の平均厚さである請求項6に記載の積層セラミック電子部品。
- 前記誘電体層に用いられるセラミック粉末は、第1セラミック粉末と第1セラミック粉末より平均粒径が小さい第2セラミック粉末を含む請求項6に記載の積層セラミック電子部品。
- 前記第1セラミック粉末の平均粒径は、前記第2セラミック粉末の平均粒径の1.5倍から4.5倍である請求項10に記載の積層セラミック電子部品。
- 前記セラミック粉末は、70〜99重量部の第1セラミック粉末と1〜30重量部の第2セラミック粉末を含む請求項10に記載の積層セラミック電子部品。
- 第1セラミック粉末と第1セラミック粉末より平均粒径が小さい第2セラミック粉末を含むスラリーを利用してセラミックグリーンシートを設ける段階と、
導電性金属ペーストを利用して前記セラミックグリーンシート上に内部電極パターンを形成する段階と、
前記セラミックグリーンシートを積層して焼結し、誘電体層及び前記誘電体層を介して対向配置される第1及び第2内部電極を含むセラミック本体を形成する段階と、を含み、
前記誘電体層内の誘電体グレインの粒径の累積分布において、1%の値をD1、50%の値をD50及び99%の値をD99とするとき、2≦D99/D50≦3及び2≦D50/D1≦3を満たし、前記誘電体層の平均厚さtdは、0.1μm≦td≦0.5μmを満たす積層セラミック電子部品の製造方法。 - 前記誘電体層の平均厚さtdと前記誘電体グレインの粒径の累積分布50%の値であるD50は、td/8≦D50≦td/3の関係を満たす請求項13に記載の積層セラミック電子部品の製造方法。
- 前記誘電体層の中心線の平均粗さをRaとするとき、5nm≦Ra≦30nmを満たす請求項13に記載の積層セラミック電子部品の製造方法。
- 前記第1セラミック粉末の平均粒径は、前記第2セラミック粉末の平均粒径の1.5倍から4.5倍である請求項13に記載の積層セラミック電子部品の製造方法。
- 前記セラミック粉末は、70〜99重量部の第1セラミック粉末と1〜30重量部の第2セラミック粉末を含む請求項13に記載の積層セラミック電子部品の製造方法。
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JP6900157B2 (ja) * | 2015-07-17 | 2021-07-07 | 株式会社村田製作所 | 積層セラミックコンデンサ |
KR101813374B1 (ko) | 2016-05-13 | 2017-12-28 | 삼성전기주식회사 | 박막 커패시터 및 그 제조방법 |
JP7290914B2 (ja) * | 2018-02-26 | 2023-06-14 | 太陽誘電株式会社 | 積層セラミックコンデンサの製造方法 |
KR20190116112A (ko) * | 2019-06-17 | 2019-10-14 | 삼성전기주식회사 | 유전체 자기 조성물 및 이를 포함하는 적층 세라믹 커패시터 |
KR20190116141A (ko) * | 2019-07-24 | 2019-10-14 | 삼성전기주식회사 | 유전체 자기 조성물 및 이를 포함하는 적층 세라믹 커패시터 |
KR20190116146A (ko) | 2019-08-02 | 2019-10-14 | 삼성전기주식회사 | 적층 세라믹 전자부품 및 그 제조방법 |
JP7230788B2 (ja) | 2019-12-05 | 2023-03-01 | 株式会社村田製作所 | インダクタ部品 |
CN114334400A (zh) * | 2020-09-29 | 2022-04-12 | 吴江华丰电子科技有限公司 | 磁性组件及其制作方法 |
JP2022083832A (ja) * | 2020-11-25 | 2022-06-06 | Tdk株式会社 | 積層電子部品 |
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JPWO2011125543A1 (ja) | 2010-04-02 | 2013-07-08 | 株式会社村田製作所 | 誘電体セラミックおよびそれを用いた積層セラミックコンデンサ |
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CN103578748B (zh) | 2018-03-13 |
KR20140012494A (ko) | 2014-02-03 |
CN103578748A (zh) | 2014-02-12 |
KR101912266B1 (ko) | 2018-10-29 |
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