Title:
MULTILAYER CERAMIC ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2012/120913
Kind Code:
A1
Abstract:
Provided is a multilayer ceramic electronic component that solves the problem of corrosion and has excellent reliability in high humidity even though Ni is used in material for internal electrodes.
When internal electrodes (4, 5) are divided into a main part (12) and a peripheral part (13), the main component of the main part (12) is made Ni, and at least part of the peripheral part (13) is an alloyed region wherein Ni and M (M being at least one selected from Cu, Pt, Au, and Pd) are alloyed. M has a higher normal electrode potential than Ni, and therefore, has higher corrosion resistance; therefore, the corrosion resistance of the internal electrodes (4, 5) can be increased more than when no alloyed region in which M is alloyed with Ni is formed. Thus, the reliability in high humidity can be increased. Cu is preferable for M, and in the alloyed region, the presence of a location with Cu content of 10 mol% is more preferable.
Inventors:
HIRAMATSU TAKASHI (JP)
OKAJIMA KENICHI (JP)
YAMASHITA YASUHARU (JP)
OKAJIMA KENICHI (JP)
YAMASHITA YASUHARU (JP)
Application Number:
PCT/JP2012/050053
Publication Date:
September 13, 2012
Filing Date:
January 05, 2012
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
HIRAMATSU TAKASHI (JP)
OKAJIMA KENICHI (JP)
YAMASHITA YASUHARU (JP)
HIRAMATSU TAKASHI (JP)
OKAJIMA KENICHI (JP)
YAMASHITA YASUHARU (JP)
International Classes:
H01G4/12; H01G4/30
Foreign References:
| JP2000049033A | 2000-02-18 | |||
| JPH03208323A | 1991-09-11 | |||
| JPH08148372A | 1996-06-07 | |||
| JPH10144559A | 1998-05-29 |
Attorney, Agent or Firm:
KOSHIBA, MASAAKI (JP)
Masaaki Koshiba (JP)
Masaaki Koshiba (JP)
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