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US07751178B2 Dielectric ceramic and multilayer ceramic capacitor using the same 有权
介质陶瓷和多层陶瓷电容器使用相同

Dielectric ceramic and multilayer ceramic capacitor using the same
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.
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