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Title:
DIELECTRIC CERAMIC COMPOSITION AND CERAMIC ELECTRONIC COMPONENT
Document Type and Number:
WIPO Patent Application WO/2019/198418
Kind Code:
A1
Abstract:
This dielectric ceramic composition comprises a first ingredient and a second ingredient. The first ingredient comprises 0.00 to 35.85% by mole of an oxide of Ca, 0.00 to 47.12% by mole of an oxide of Sr, 0.00 to 51.22% by mole of an oxide of Ba, 0.00 to 17.36% by mole of an oxide of Ti, 0.00 to 17.36% by mole of an oxide of Zr, 0.00 to 2.60% by mole of an oxide of Sn, 0.00 to 35.32% by mole of an oxide of Nb, 0.00 to 35.32% by mole of an oxide of Ta, and 0.00 to 2.65% by mole of an oxide of V. As the second ingredient, this dielectric ceramic composition comprises at least: 0.005 to 3.500% by mass of an oxide of Mn (a); and 0.080 to 20.000% by mass of an oxide of Cu and/or 0.300 to 45.000% by mass of an oxide of Ru (b). According to the present invention, a dielectric ceramic composition can be provided, wherein changes in the electrostatic capacity are small even under a high-temperature environment, dielectric losses at 25°C and 200°C are small, and the insulation resistance value under a high-temperature environment is high.

Inventors:
NOMURA TAKESHI (JP)
SASAKI YUKARI (JP)
Application Number:
PCT/JP2019/010830
Publication Date:
October 17, 2019
Filing Date:
March 15, 2019
Export Citation:
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Assignee:
SHOEI CHEMICAL IND CO (JP)
International Classes:
C04B35/495; C04B35/499; H01B3/12; H01G4/30
Domestic Patent References:
WO2017163842A12017-09-28
WO2017163845A12017-09-28
WO2008102608A12008-08-28
WO2006114914A12006-11-02
Foreign References:
JPH03274607A1991-12-05
JP2002211975A2002-07-31
JP2007197277A2007-08-09
JPH1143370A1999-02-16
JP2000169215A2000-06-20
JP2008189487A2008-08-21
JP2013180906A2013-09-12
JP2013180907A2013-09-12
JP2013180908A2013-09-12
JP2012169635A2012-09-06
Other References:
R. R. NEURGAONKARJ. G. NELSONJ. R. OLIVER, MAT. RES. BULL., vol. 27, 1992, pages 677 - 684
See also references of EP 3778530A4
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (JP)
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