WO2008123377A1 - 誘電体磁器および積層セラミックコンデンサ - Google Patents

誘電体磁器および積層セラミックコンデンサ Download PDF

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Publication number
WO2008123377A1
WO2008123377A1 PCT/JP2008/055951 JP2008055951W WO2008123377A1 WO 2008123377 A1 WO2008123377 A1 WO 2008123377A1 JP 2008055951 W JP2008055951 W JP 2008055951W WO 2008123377 A1 WO2008123377 A1 WO 2008123377A1
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Prior art keywords
crystal grains
dielectric ceramic
manganese
magnesium
ceramic
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PCT/JP2008/055951
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English (en)
French (fr)
Inventor
Hideyuki Osuzu
Youichi Yamazaki
Yoshihiro Fujioka
Daisuke Fukuda
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Kyocera Corporation
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Application filed by Kyocera Corporation filed Critical Kyocera Corporation
Priority to CN200880009546.6A priority Critical patent/CN101641304B/zh
Publication of WO2008123377A1 publication Critical patent/WO2008123377A1/ja

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    • 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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Abstract

　チタン酸バリウムを主成分とし、カルシウムと、バナジウムと、マグネシウムと、マンガンと、イットリウム、ディスプロシウム、ホルミウム、エルビウムおよびテルビウムから選ばれる少なくとも１種の希土類元素とが固溶したコアシェル構造の結晶粒子と、該結晶粒子間に存在する粒界相とを有する誘電体磁器であって、前記結晶粒子に対して、バナジウム、マグネシウムおよび希土類元素およびマンガンをそれぞれ所定の割合で含有させて、キュリー温度を９５～１０５°Cの範囲としたことにより、高誘電率かつ比誘電率の温度変化率を小さくできるとともに、絶縁抵抗の電圧依存性の小さい誘電体磁器を得ることができる。
PCT/JP2008/055951 2007-03-27 2008-03-27 誘電体磁器および積層セラミックコンデンサ WO2008123377A1 (ja)

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Application Number Priority Date Filing Date Title
CN200880009546.6A CN101641304B (zh) 2007-03-27 2008-03-27 电介体瓷器及层叠陶瓷电容器

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JP2007-082466 2007-03-27
JP2007082466A JP5046699B2 (ja) 2007-03-27 2007-03-27 誘電体磁器および積層セラミックコンデンサ

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JP5578881B2 (ja) * 2010-02-25 2014-08-27 京セラ株式会社 積層セラミックコンデンサ
JP5370615B2 (ja) 2011-02-23 2013-12-18 株式会社村田製作所 積層セラミックコンデンサ
JP6519726B2 (ja) * 2014-09-12 2019-05-29 株式会社村田製作所 積層セラミックコンデンサ
JP7128442B2 (ja) 2018-07-31 2022-08-31 Tdk株式会社 誘電体磁器組成物および積層セラミック電子部品
JP7396157B2 (ja) * 2020-03-26 2023-12-12 Tdk株式会社 誘電体磁器組成物および電子部品

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JP2005104770A (ja) * 2003-09-30 2005-04-21 Tdk Corp 誘電体磁器組成物および電子部品
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