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Title:
CERAMIC ELECTRONIC COMPONENT AND METHOD FOR PRODUCING CERAMIC ELECTRONIC COMPONENT
Document Type and Number:
WIPO Patent Application WO/2011/108701
Kind Code:
A1
Abstract:
Disclosed is a ceramic electronic component comprising a magnetic body part (2) formed of a ferrite material and a conductive part (3) comprising Cu as the main component, wherein the magnetic body part (2) contains trivalent Fe and divalent element(s) including at least divalent Ni and the content of said Fe, in terms of Fe2O3, is 20-48 mol%. The magnetic body part (2) contains Mn in such an amount that the ratio of Mn to the sum of Fe and Mn, in terms of Mn2O3 and Fe2O3 respectively, is less than 50 mol%. The magnetic body part (2) and the conductive part (3) are formed by simultaneously baking in an atmosphere with a pressure equal to or lower than the equilibrium oxygen partial pressure for Cu-Cu2O. Thus, high insulation properties can be ensured and good electrical characteristics can be obtained, even by simultaneously baking the conducting part (3) comprising Cu as the main component and the magnetic body part (2).

Inventors:
NAKAMURA Akihiro (10-1,Higashikotari 1-chome,Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
中村 彰宏 (〒55 京都府長岡京市東神足1丁目10番1号 株式会社 村田製作所内 Kyoto, 〒6178555, JP)
YAMAMOTO Atsushi (10-1,Higashikotari 1-chome,Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2011/055061
Publication Date:
September 09, 2011
Filing Date:
March 04, 2011
Export Citation:
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Assignee:
Murata Manufacturing Co., Ltd. (10-1, Higashikotari 1-chomeNagaokakyo-sh, Kyoto 55, 〒6178555, JP)
株式会社 村田製作所 (〒55 京都府長岡京市東神足1丁目10番1号 Kyoto, 〒6178555, JP)
NAKAMURA Akihiro (10-1,Higashikotari 1-chome,Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
中村 彰宏 (〒55 京都府長岡京市東神足1丁目10番1号 株式会社 村田製作所内 Kyoto, 〒6178555, JP)
International Classes:
H01F1/34; C04B35/30; H01F17/00
Domestic Patent References:
WO2007066453A12007-06-14
Foreign References:
JPH05326242A1993-12-10
JP2004323283A2004-11-18
JP2010018482A2010-01-28
JPH097880A1997-01-10
JPH0869939A1996-03-12
JPH0461203A1992-02-27
JPH0797525B21995-10-18
JP2006219306A2006-08-24
Other References:
See also references of EP 2544200A4
Attorney, Agent or Firm:
KUNIHIRO Yasutoshi (10F Samty shinosaka front Bldg, 14-10 Nishinakajima 5-chome, Yodogawaku, Osaka-sh, Osaka 11, 〒5320011, JP)
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Claims: