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Title:
GLASS CERAMIC SINTERED BODY, GLASS CERAMIC COMPOSITION, MULTILAYER CERAMIC CAPACITOR AND METHOD FOR MANUFACTURING MULTILAYER CERAMIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2017/122382
Kind Code:
A1
Abstract:
This glass ceramic sintered body contains a perovskite compound represented by general formula ABO3 (wherein the A site contains Ba and Sr, and optionally contains Ca; the B site contains Ti, and optionally contains Zr; and O represents oxygen), and is characterized in that: if the weight of the entire glass ceramic sintered body is taken as 100 parts by weight, the glass ceramic sintered body contains 0.03-0.31 part by weight of Mn oxides in terms of MnO and 3.0-7.0 parts by weight of glass; and if the weight of the entire glass is taken as 100 parts by weight, the glass contains 44.0-69.0 parts by weight of RO (wherein R represents at least one alkaline earth metal selected from the group consisting of Ba, Ca and Sr), 0.3-7.5 parts by weight of Li2O, 10.0-20.0 parts by weight of B2O3, 14.2-30.0 parts by weight of SiO2, 0.1-5.5 parts by weight of MgO and 0.5-4.0 parts by weight of Al2O3. Consequently, the present invention provides a glass ceramic sintered body which is able to be used not only as a dielectric body for multilayer ceramic capacitors but also as a dielectric body for variable capacitance elements.

Inventors:
SODA YOSHITO (JP)
ADACHI HIROSHIGE (JP)
Application Number:
JP2016/073588
Publication Date:
July 20, 2017
Filing Date:
August 10, 2016
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
C04B35/49; C03C8/20; C04B35/462; H01G4/12; H01G4/232; H01G4/30
Domestic Patent References:
WO2013121928A12013-08-22
WO2013121929A12013-08-22
WO2012157299A12012-11-22
WO2012157300A12012-11-22
Foreign References:
JP2001278664A2001-10-10
JP2008254936A2008-10-23
JPH04368709A1992-12-21
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
Patent business corporation Yasutomi international patent firm (JP)
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