Title:
LAMINATED CERAMIC ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2010/146967
Kind Code:
A1
Abstract:
Disclosed is a laminated ceramic electronic component provided with a laminate having internal electrodes such that it is possible to reduce the likelihood of changes in state such as electrode breakage and ball formation and to improve DC bias characteristics during the firing process in which the laminate is sintered, even when the ceramic layer and the internal electrodes are thinned. With reference to the grain diameter of the ceramics that form the ceramic layers, the laminate (12) is divided into a large grain area (13) in which the grain diameter is relatively large and into a small grain area (14) in which the grain diameter is relatively small. The large grain area (13) is positioned on the outside of the small grain area (14) and the boundary (15) of the large grain area and the small grain area is positioned inside the outer surface of the laminate so as to enclose the area (16) where the internal electrodes of the laminate are present. In order to obtain the laminate, the firing process involves a heat treatment in a temperature profile in which the average rate of temperature increase from room temperature to the maximum temperature is 40°C/sec or more.
Inventors:
HIRATA, Yosuke (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
平田 陽介 (〒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)
TSUJI, Hideaki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
辻 英昭 (〒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)
OMORI, Nagato (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
大森 長門 (〒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)
平田 陽介 (〒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)
TSUJI, Hideaki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
辻 英昭 (〒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)
OMORI, Nagato (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
大森 長門 (〒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)
Application Number:
JP2010/058618
Publication Date:
December 23, 2010
Filing Date:
May 21, 2010
Export Citation:
Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-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)
HIRATA, Yosuke (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
平田 陽介 (〒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)
TSUJI, Hideaki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
辻 英昭 (〒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)
OMORI, Nagato (10-1, Higashikotari 1-chome, Nagaokakyo-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)
HIRATA, Yosuke (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
平田 陽介 (〒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)
TSUJI, Hideaki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
辻 英昭 (〒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)
OMORI, Nagato (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H01G4/30; H01G4/12; H01G13/00
Attorney, Agent or Firm:
KOSHIBA, Masaaki (Koshiba Patent Office, Nisshin Building 14-22, Shitennoji 1-chome, Tennoji-ku, Osaka-sh, Osaka 51, 〒5430051, JP)
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