Title:
A lamination ceramic condenser and a manufacturing method for the same
Document Type and Number:
Japanese Patent JP6166290
Kind Code:
B2
Abstract:
A multilayer ceramic capacitor includes a ceramic main body including an inner layer portion including third ceramic layers and a plurality of inner electrodes arranged at interfaces between the third ceramic layers, and first and second outer layer portions respectively including first and second ceramic layers, the first and second ceramic layers being arranged vertically so as to sandwich the inner layer portion. The third ceramic layers and the first and second outer layer portions contain a perovskite-type compound represented by ABO3 where A contains one or more of Ba, Sr, and Ca, B contains one or more of Ti, Zr, and Hf, and O represents oxygen) as a main component. Where a rare-earth element concentration (CR) in the third ceramic layers is compared to a rare-earth element concentration (Cr) in outermost layer portions including at least outermost surfaces of the first and second outer layer portions, CR>Cr (inclusive of Cr=0).
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Inventors:
Hiroyuki Wada
Kohei Shimada
Kenji Takagi
Tomomi Koga
Tomotaka Hirata
Hitoshi Nishimura
Hiroki Awata
Uno Midori
Kohei Shimada
Kenji Takagi
Tomomi Koga
Tomotaka Hirata
Hitoshi Nishimura
Hiroki Awata
Uno Midori
Application Number:
JP2015020927A
Publication Date:
July 19, 2017
Filing Date:
February 05, 2015
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01G4/12; H01G4/30
Domestic Patent References:
| JP201050263A | ||||
| JP201269575A | ||||
| JP2007266223A |
Attorney, Agent or Firm:
Masahiro Okada
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