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WO2009041160A1 - 誘電体セラミック及び積層セラミックコンデンサ - Google Patents

誘電体セラミック及び積層セラミックコンデンサ Download PDF

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Publication number
WO2009041160A1
WO2009041160A1 PCT/JP2008/064006 JP2008064006W WO2009041160A1 WO 2009041160 A1 WO2009041160 A1 WO 2009041160A1 JP 2008064006 W JP2008064006 W JP 2008064006W WO 2009041160 A1 WO2009041160 A1 WO 2009041160A1
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Prior art keywords
mole
parts
less
dielectric ceramic
ceramic
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Ceased
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PCT/JP2008/064006
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English (en)
French (fr)
Inventor
Masahiro Otsuka
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Murata Manufacturing Co Ltd
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Murata Manufacturing Co Ltd
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Priority to JP2009534231A priority Critical patent/JP5240199B2/ja
Publication of WO2009041160A1 publication Critical patent/WO2009041160A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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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    • 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
    • H—ELECTRICITY
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    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/12—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract

　積層セラミックコンデンサに用いられる誘電体セラミック材料であって、１.２５ｋＶ／ｍｍ程度のＤＣバイアスが印加されても、高い誘電率を示す誘電体セラミックを提供する。チタン酸バリウム系化合物を主成分とし、副成分としてＲ１（Ｒ１はＬａ、Ｎｄ、Ｓｍ、Ｇｄ、Ｄｙから選ばれる少なくとも１種）、およびＲ２（Ｒ２はＹ、Ｈｏ、Ｅｒ、Ｙｂから選ばれる少なくとも１種）を含む組成を有する誘電体セラミックにおいて、上記の主成分１００モル部に対するＲ１の総含有量をαモル部、Ｒ２の総含有量をβモル部とするとき、上記の結晶粒子の断面を観察したとき、結晶粒子の表面から結晶粒子内部に向かって１０ｎｍ以上離れた点におけるＲ１の濃度がα／２以上、Ｒ２の濃度がβ／５未満（０を含む）である結晶粒子が全体の６０％以上である。
PCT/JP2008/064006 2007-09-26 2008-08-05 誘電体セラミック及び積層セラミックコンデンサ Ceased WO2009041160A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009534231A JP5240199B2 (ja) 2007-09-26 2008-08-05 誘電体セラミック及び積層セラミックコンデンサ

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JP2007-249277 2007-09-26
JP2007249277 2007-09-26

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WO2009041160A1 true WO2009041160A1 (ja) 2009-04-02

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011105571A (ja) * 2009-11-20 2011-06-02 Murata Mfg Co Ltd 誘電体セラミックおよび積層セラミックコンデンサ
JP2014198660A (ja) * 2013-03-29 2014-10-23 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.Samsung Electro−Mechanics Co., Ltd. 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ー
JP2018022750A (ja) * 2016-08-02 2018-02-08 太陽誘電株式会社 積層セラミックコンデンサ
CN110808163A (zh) * 2019-10-28 2020-02-18 湖北大学 一种晶界层电容器的制备方法
US11101073B2 (en) * 2019-02-13 2021-08-24 Samsung Electro-Mechanics Co., Ltd. Dielectric ceramic composition and multilayer ceramic capacitor comprising the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7720695B2 (ja) * 2018-04-20 2025-08-08 Ｕｂｅ株式会社 ポリイミド前駆体、ポリイミド、ポリイミドフィルム並びにフレキシブル電子デバイスおよびその製造方法
KR102194706B1 (ko) * 2019-02-15 2020-12-23 삼성전기주식회사 적층형 커패시터
TWI748483B (zh) * 2019-04-25 2021-12-01 禾伸堂企業股份有限公司 電容器應用的介電陶瓷材料組成
WO2023234392A1 (ja) * 2022-06-03 2023-12-07 京セラ株式会社 積層セラミックコンデンサ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002274936A (ja) * 2001-03-19 2002-09-25 Murata Mfg Co Ltd 誘電体セラミック、その製造方法およびその評価方法ならびに積層セラミック電子部品
JP2003277139A (ja) * 2002-01-15 2003-10-02 Tdk Corp 誘電体磁器組成物および電子部品
JP2008109120A (ja) * 2006-09-27 2008-05-08 Kyocera Corp 積層セラミックコンデンサおよびその製法

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