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Title:
LAMINATED CERAMIC ELECTRONIC COMPONENT
Document Type and Number:
WIPO Patent Application WO/2013/175945
Kind Code:
A1
Abstract:
Provided is a laminated ceramic electronic component that does not invite a reduction in performance due to breakage in an internal electrode layer, has favorable thermal shock resistance, and is highly reliable. A laminated section (10) has the following: a thermal shock mitigating section (11) which corresponds to a region near an external layer (20) including a region in contact with the external layer and which is provided with a curved ceramic layer (1, (1a)) and an internal electrode layer (2, (2a)) the thickness of which changes smoothly according to a position; and a normal laminated section (12) which corresponds to a region inside from the thermal shock mitigating section and which is provided with a ceramic layer (1, (1b)) the degree of curvature of which is smaller than the ceramic layer (1, (1a)) of the thermal shock mitigating section (11), and an internal electrode layer (2, (2b)) in which the degree of thickness change according to a position in a direction following the main surface of the external layer (20) is smaller than the internal electrode layer (2, (2a)) of the thermal shock mitigating section (11). With regard to the thermal shock mitigating section, the CV value of the thickness of the ceramic layer is no more than 15%, the CV value of the thickness of at least one layer of the internal electrode layers is at least 40%, and the CV value of the distance between mid-points is at least 40% in a case of one set of adjacent ceramic layers.

Inventors:
WADA, Hiroyuki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
HIRATA, Yosuke (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
HIRAMATSU, Takashi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
SAITO, Yoshito (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
TSUJI, Hideaki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
UKAI, Hiroyuki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2013/062553
Publication Date:
November 28, 2013
Filing Date:
April 30, 2013
Export Citation:
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Assignee:
MURATA MANUFACTURING CO.,LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H01G4/30; H01G4/232
Foreign References:
JP2007158266A2007-06-21
JP2004095687A2004-03-25
JP2005136146A2005-05-26
JP2013058718A2013-03-28
Attorney, Agent or Firm:
NISHIZAWA, Hitoshi (5th Floor, Daido Seimei Minami-kan 1-2-11, Edobori, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
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