DIELECTRIC CERAMIC COMPOSITION, AND LAMINATED CERAMIC CAPACITOR USING SAME

WIPO Patent Application WO/2014/162752

A1

Provided is a dielectric ceramic composition that enables a laminated ceramic capacitor having good capacitance-temperature characteristics, from low to high temperatures, to be obtained without a decrease in the insulation resistance of dielectric ceramic layers even when fired in a reduction atmosphere. The laminated ceramic capacitor (10) includes a ceramic body (12) obtained by laminating dielectric ceramic layers (14) and internal electrodes (16) composed mainly of nickel, and external electrodes (18) formed on the outer surface of the ceramic body (12). The dielectric layers (14) are formed using a dielectric ceramic composition that: is represented by (KaNabLicM2d)(NbwTaxMgyM4z)O3, wherein M2 is at least one of calcium, strontium and barium, and M4 is at least one of zirconium, hafnium and tin; contains main ingredients in which a, b, c, d, w, x, y and z satisfy prescribed relationships; and contains 2 to 15 molar parts of manganese with respect to 100 molar parts of the total content of niobium, tantalum, magnesium and M4.

BANNO KOICHI (JP)
SUZUKI SHOICHIRO (JP)
MIYAYAMA MASARU (JP)
NOGUCHI YUJI (JP)

PCT/JP2014/050075

October 09, 2014

January 07, 2014

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MURATA MANUFACTURING CO (JP)

C04B35/00; H01B3/12; H01G4/12; H01G4/30

WO2010050258A1	2010-05-06
WO2006114914A1	2006-11-02
WO2008102608A1	2008-08-28
WO2008152851A1	2008-12-18

JP2009249244A	2009-10-29
JP2008189487A	2008-08-21

OKADA, MASAHIRO (JP)
Zenkei Okada (JP)

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