誘電体セラミック組成物及び積層セラミックコンデンサ

Title:

誘電体セラミック組成物及び積層セラミックコンデンサ

Document Type and Number:

Japanese Patent JP5087938

Kind Code:

B2

Abstract:

To provide a dielectric ceramic composition which is a dielectric ceramic material used for a multilayer ceramic capacitor, can be co-fired with an Ni internal electrode at ≤1,100°C and has high resistivity at a high temperature of 150°C.

The dielectric ceramic composition contains a tungsten bronze type multiple oxide expressed by the compositional formula of (K1-xNax)Sr2Nb5O15(wherein, 0≤x<0.2) as the main component, and Mn of 0.05 to 20 pts.mol and Li of 0.25 to 30 pts.mol based on 100 pts.mol of the main component as auxiliary components.

Inventors:

Toshikazu Takeda

Application Number:

JP2007023213A

Publication Date:

December 05, 2012

Filing Date:

February 01, 2007

Export Citation:

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Assignee:

MURATA MANUFACTURING CO.,LTD.

International Classes:

C04B35/00; H01B3/12; H01G4/12; H01G4/232

Domestic Patent References:

JP5085804A
JP11278932A
JP10036172A
JP2001151573A
JP2003020275A

Foreign References:

WO2006114914A1

Other References:

BOUFROU,Brahim et al,Tetragonal Tungsten Bronze Niobate, K0.2Sr0.4NbO3: A New Material for Capacitors with Flat Dielectric Curves,Journal of the American Ceramic Society,米国,American Ceramic Society,1991年,Vol.74,No.11,pp.2809-2814

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