LAMINATED CERAMIC CAPACITOR - MURATA MANUFACTURING CO

Title:

LAMINATED CERAMIC CAPACITOR

Document Type and Number:

Japanese Patent JP2012169635

Kind Code:

A

Abstract:

To provide a laminated ceramic capacitor which can improve sinterability, can impart a reduction resistance, and also can enhance a relative dielectric constant.

A laminated ceramic capacitor 1 has a plurality of laminated dielectric ceramic layers 2, internal electrodes 3A and 3B arranged between the dielectric ceramic layers, and external electrodes 4A and 4B which are electrically connected to the internal electrodes. The dielectric ceramic layer is formed of a dielectric ceramic composition containing a tungsten bronze type composite oxide as a main component expressed by the compositional formula of (K_1-yNa_y)Sr₂ Nb₅O₁₅ (where 0≤y<0.2). Nb of 20 mol% or less in the compositional formula is substituted by a sub-component, and the sub-component includes Mn and at least one element selected from Cr, Co, Fe, Ni, Zn, Mg and Si.

Inventors:

TAKEDA TOSHIKAZU
WADA NOBUYUKI
TAKAHASHI YUKAKO

Application Number:

JP2012054956A

Publication Date:

September 06, 2012

Filing Date:

March 12, 2012

Export Citation:

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Assignee:

MURATA MANUFACTURING CO

International Classes:

H01G4/12; C04B35/00; H01G4/30

Domestic Patent References:

JP2000114093A	2000-04-21
JPH10297969A	1998-11-10
JP2000191373A	2000-07-11
JP2004075448A	2004-03-11
JPH11240759A	1999-09-07

Attorney, Agent or Firm:

Hajime Ohara

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