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Title:
METHOD FOR MANUFACTURING DIELECTRIC MATERIAL
Document Type and Number:
Japanese Patent JP2009143734
Kind Code:
A
Abstract:

To provide a dielectric material having excellent electrical characteristics even in a case that a dielectric layer is thin, and producible a laminated ceramic capacitor whose short circuit rate is low.

The method for manufacturing the dielectric material is provided with a step of pulverizing primary raw material powder comprising barium titanate to obtain secondary raw material powder. The specific surface area of the primary raw material powder is controlled to 6.1-11.0 m2/g, the D99 value of the particle size distribution of the secondary raw material powder is controlled to 0.35 m and the increase of the specific surface area of the secondary raw material powder to that of the primary raw material powder is controlled to 5.0 m2/g.


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Inventors:
MAKI TAKASHI
HIRAI NOBUTAKE
HATAKE KOTARO
Application Number:
JP2007319619A
Publication Date:
July 02, 2009
Filing Date:
December 11, 2007
Export Citation:
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Assignee:
SAMSUNG ELECTRO MECH
International Classes:
C04B35/46; H01G4/12; H01G4/30; H01B3/12
Domestic Patent References:
JP2005041730A2005-02-17
JP2006290675A2006-10-26
JP2004297059A2004-10-21
JP2003306385A2003-10-28
JP2007063040A2007-03-15
JP2005255461A2005-09-22
Foreign References:
WO2004038743A12004-05-06
Attorney, Agent or Firm:
Ryuhei Nishimura
Akiko Sato



 
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