Title:
LAMINATE CERAMIC CAPACITOR AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2014/010273
Kind Code:
A1
Abstract:
Provided are: a laminate ceramic capacitor having high reliability, superior resistance to insulation degradation, and low change over time in insulating resistance in a high-temperature load test; and a method for producing the laminate ceramic capacitor. The laminate ceramic capacitor is provided with: a laminate body (10) having plurality of dielectric layers (11), which have a dielectric ceramic provided with a plurality of crystal particles, and a plurality of inner electrodes (12), which are formed at the plurality of interfaces between the dielectric layers; and outer electrodes (13a, 13b). The laminate body contains La, Mg, Mn, Al, and a perovskite compound containing Ba and Ti; the fractions of the amounts contained of La, Mg, Mn, and Al with respect to amount contained of Ti are, with respect to 100 parts by mole of Ti, in the ranges of 0.2-1.2 parts by mole of La, no greater than 0.1 parts by mole of Mg, 1.0-3.0 parts by mole of Mn, and 0.5-2.5 parts by mole of Al; and the average number of crystal particles contained in the dielectric layers in the direction of lamination per dielectric layer satisfies the condition of being one to three inclusive.
Inventors:
OKAMOTO TAKAFUMI (JP)
Application Number:
PCT/JP2013/058523
Publication Date:
January 16, 2014
Filing Date:
March 25, 2013
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01G4/12; C04B35/468; H01G4/30
Domestic Patent References:
WO2013018789A1 | 2013-02-07 |
Foreign References:
JP2012076951A | 2012-04-19 | |||
JPH11317322A | 1999-11-16 | |||
JPH07187780A | 1995-07-25 |
Attorney, Agent or Firm:
NISHIZAWA, HITOSHI (JP)
Hitoshi Nishizawa (JP)
Hitoshi Nishizawa (JP)
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