Title:
ニッケル電極用X8R誘電体組成物
Document Type and Number:
Japanese Patent JP4942822
Kind Code:
B2
Abstract:
Multilayer ceramic chip capacitors which satisfy X8R requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as nickel and nickel alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise a barium titanate base material doped with other metal oxides such as BaO, Y2O3, ZrO2, SiO2, MgO, MnO, MoO3, CaO, Lu2O3, Yb2O3, or WO3 in various combinations.
Inventors:
Coeburg, Gerhadas, W.
Albertus, Knuth
Copen, Willibroldus, Jay Elm Em. Jay.
Albertus, Knuth
Copen, Willibroldus, Jay Elm Em. Jay.
Application Number:
JP2009546370A
Publication Date:
May 30, 2012
Filing Date:
January 17, 2007
Export Citation:
Assignee:
KIM,Steve,S.
International Classes:
C04B35/468; H01B3/12; H01G4/12; H01G4/232; H01G4/30
Domestic Patent References:
| JP2001192264A | ||||
| JP2001220225A | ||||
| JP2002080275A | ||||
| JP2007022819A | ||||
| JP2000154057A | ||||
| JP2000315615A | ||||
| JP2002201064A |
Foreign References:
| US5137776 | ||||
| US5187638 | ||||
| US5361187 | ||||
| US5422190 |
Attorney, Agent or Firm:
Yuji Iwahashi