Invention Grant
- Patent Title: Dielectric ceramic and multilayer ceramic capacitor using the same
- Patent Title (中): 介质陶瓷和多层陶瓷电容器使用相同
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Application No.: US12463682Application Date: 2009-05-11
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Publication No.: US07751178B2Publication Date: 2010-07-06
- Inventor: Shoichiro Suzuki
- Applicant: Shoichiro Suzuki
- Applicant Address: JP Kyoto-fu
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto-fu
- Agency: Dickstein Shapiro LLP
- Priority: JP2006-328545 20061205
- Main IPC: H01G4/06
- IPC: H01G4/06

Abstract:
A dielectric ceramic is provided which is can be stably used for a multilayer ceramic capacitor even at a high temperature of approximately 175° C. The dielectric ceramic includes a perovskite type compound represented by the composition formula (Ba1-x-yCaxSny)m(Ti1-zZrz)O3 (where x, y, z, and m satisfy 0≦x≦0.20, 0.02≦y≦0.20, 0≦z≦0.05, and 0.990≦m≦1.015, respectively) as a primary component; and RE as an accessory component (where RE is at least one selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu), wherein 0.5 to 20 molar parts of RE is contained with respect to 100 molar parts of the primary component.
Public/Granted literature
- US20090207551A1 DIELECTRIC CERAMIC AND MULTILAYER CERAMIC CAPACITOR USING THE SAME Public/Granted day:2009-08-20
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