JP2021019101A - 積層型電子部品および積層型電子部品の製造方法 - Google Patents
積層型電子部品および積層型電子部品の製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000013078 crystal Substances 0.000 claims abstract description 54
- 238000005245 sintering Methods 0.000 claims description 47
- 239000000843 powder Substances 0.000 claims description 45
- 239000002245 particle Substances 0.000 claims description 29
- 239000004020 conductor Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 6
- 229910052788 barium Inorganic materials 0.000 claims description 3
- 230000007847 structural defect Effects 0.000 abstract description 10
- 239000003985 ceramic capacitor Substances 0.000 description 31
- 239000000919 ceramic Substances 0.000 description 28
- 229910052751 metal Inorganic materials 0.000 description 24
- 239000002184 metal Substances 0.000 description 24
- 238000007747 plating Methods 0.000 description 17
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 150000002894 organic compounds Chemical class 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 4
- 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
- 239000003990 capacitor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 230000032798 delamination Effects 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 239000002003 electrode paste Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- H01G4/30—Stacked capacitors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B35/4682—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 based on BaTiO3 perovskite phase
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
- C04B41/5144—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal with a composition mainly composed of one or more of the metals of the iron group
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/88—Metals
-
- 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
- H01G4/005—Electrodes
- H01G4/012—Form of non-self-supporting electrodes
-
- 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
-
- 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
- H01G4/228—Terminals
- H01G4/232—Terminals electrically connecting two or more layers of a stacked or rolled capacitor
-
- 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
- H01G4/228—Terminals
- H01G4/248—Terminals the terminals embracing or surrounding the capacitive element, e.g. caps
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Capacitors (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
この開示に従う積層型電子部品の実施形態を示す積層セラミックコンデンサ100について、図1ないし図3を用いて説明する。
図1は、積層セラミックコンデンサ100の断面図である。積層セラミックコンデンサ100は、積層体10を備えている。積層体10は、積層された複数の誘電体層11と複数の内部電極層12とを含む。また、積層体10は、積層方向に相対する第1の主面および第2の主面と、積層方向に直交する幅方向に相対する第1の側面および第2の側面と、積層方向および幅方向に直交する長さ方向に相対する第1の端面13aおよび第2の端面13bとを有する。
積層セラミックコンデンサ100が備える積層体10の誘電体層11は、平均厚さが300nm以下であり、平均アスペクト比が5以上の板状物である複数の第1の結晶粒G1(図2参照、後述)を有する。ここで、アスペクト比とは、板状物の厚さ方向に直交する長径の厚さに対する比である。第1の結晶粒G1は、誘電体材料の結晶粒である。また、内部電極層12は、平均厚さが150nm以下であり、平均アスペクト比が5以上の板状物である、複数の第2の結晶粒G2(図2参照、後述)を有する。第2の結晶粒G2は、導電性材料の結晶粒である。
この開示に従う積層型電子部品の実施形態を示す積層セラミックコンデンサ100の製造方法について、製造工程順に説明する。積層セラミックコンデンサ100の製造方法は、以下の各工程を備える。
10 積層体
11 誘電体層
12 内部電極層
12a 第1の内部電極層
12b 第2の内部電極層
G1 第1の結晶粒
G2 第2の結晶粒
T1AV 第1の結晶粒の平均厚さ
T2AV 第2の結晶粒の平均厚さ
AS1AV 第1の結晶粒の平均アスペクト比
AS2AV 第2の結晶粒の平均アスペクト比
Claims (7)
- 積層された複数の誘電体層と複数の内部電極層とを含む積層体を備え、
板状物の厚さ方向に直交する長径の、厚さに対する比をアスペクト比としたとき、
前記誘電体層は、平均厚さが300nm以下であり、平均アスペクト比が5以上の板状物である複数の第1の結晶粒を有し、
前記内部電極層は、平均厚さが150nm以下であり、平均アスペクト比が5以上の板状物である複数の第2の結晶粒を有する、積層型電子部品。 - 前記誘電体層の平均厚さが0.4μm以下である、請求項1に記載の積層型電子部品。
- 前記内部電極層の平均厚さが0.3μm以下である、請求項1または2に記載の積層型電子部品。
- 複数の焼結前誘電体層を得る工程と、
前記焼結前誘電体層に焼結前内部電極層を形成する工程と、
前記焼結前内部電極層が形成された焼結前誘電体層を含む前記複数の焼結前誘電体層を積層し、焼結前積層体を得る工程と、
前記焼結前積層体を焼結させ、積層された複数の誘電体層と、複数の内部電極層とを含む積層体を得る工程とを備え、
板状物の厚さ方向に直交する長径の、厚さに対する比をアスペクト比としたとき、
前記複数の焼結前誘電体層を得る工程では、平均厚さが200nm以下であり、平均アスペクト比が5以上の板状物である誘電体粒子を含む誘電体粉末が用いられ、
前記焼結前内部電極層を形成する工程では、平均厚さが150nm以下であり、平均アスペクト比が5以上の板状物である導電体粒子を含む導電体粉末が用いられる、積層型電子部品の製造方法。 - 前記誘電体粉末は、BaおよびTiを含むペロブスカイト化合物を含み、
前記導電体粉末は、Niを含む、請求項4に記載の積層型電子部品の製造方法。 - 前記誘電体粉末に含まれる板状物である誘電体粒子の平均厚さが100nm以下である、請求項4または5に記載の積層型電子部品の製造方法。
- 前記導電体粉末に含まれる板状物である導電体粒子の平均厚さが50nm以下である、請求項4ないし6のいずれか1項に記載の積層型電子部品の製造方法。
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JP2019134097A JP7427380B2 (ja) | 2019-07-19 | 2019-07-19 | 積層型電子部品および積層型電子部品の製造方法 |
KR1020200083256A KR102583482B1 (ko) | 2019-07-19 | 2020-07-07 | 적층형 전자부품 및 적층형 전자부품의 제조 방법 |
CN202010683573.4A CN112242255B (zh) | 2019-07-19 | 2020-07-15 | 层叠型电子部件及层叠型电子部件的制造方法 |
US16/930,350 US11532438B2 (en) | 2019-07-19 | 2020-07-16 | Multilayer electronic component and method for manufacturing multilayer electronic component |
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US20180182548A1 (en) * | 2016-12-22 | 2018-06-28 | Samsung Electro-Mechanics Co., Ltd. | Dielectric composition and multilayer ceramic capacitor having the same |
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