Dielectric composition and multilayer ceramic condenser using the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsChang Hak Choi, Kang Heon Hur, Chang Ho Lee, Hee Young Son
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Abstract
A dielectric compound for a multilayer ceramic condenser having a low sintering temperature and a high dielectric constant includes a base material of (BaxCa1−x)m(TiyZr1−y)O3 (where 0.7≦x≦1, 0.75≦y≦0.9, 0.998≦m≦1.006), an additive including MnO2 of less than 0.8 weight %, Y2O3 of less than 0.8 weight %, V2O5 of 0˜0.1 weight %, and a sintering aid of zLi2O−2(1−z)SiO2 (0.2≦z≦0.9) of less than 1.0 weight %. The weight % is a ratio relating to a weight of base material of the dielectric compound.
Claims6
A dielectric composition for a multi-layer ceramic condenser, comprising:
- (BaxCa1−x)m(TiyZr1−y)O3, wherein 0.7≦x≦1, 0.75≦y≦0.9, 0.998≦m≦1.006, as a base material;
- MnO2 of less than about 0.8 weight %, Y2O3 of less than 0.8 weight %, V2O5 of 0˜0.1 weight % base on a weight of the base material as a additive;
- and
- zLi2O-2(1−z)SiO2 of less than about 1.0 weight %, wherein, 0.2≦z≦0.9, as a sintering aid.
3 The dielectric composition of claim 1, wherein the base material, the additive, and the sintering aid are sintered to the multilayer ceramic condenser at a temperature of between 1000° C. and 1200° C. inclusive.
A multilayer ceramic condenser, comprising:
- an internal electrode made of Ni;
- and
- a ceramic body including a plurality of layers made of a dielectric compound having 1) (BaxCa1−x)m(TiyZr1−y)O3, wherein 0.7≦x≦1, 0.75≦y≦0.9, 0.998≦m≦1.006, as a base material, 2) MnO2 of less than about 0.8 weight %, Y2O3 of less than 0.8 weight %, V2O5 of 0˜0.1 weight % base on a weight of the base material as a additive, and 3) zLi2O-2(1−z)SiO2 of less than about 1.0 weight %, wherein, 0.2≦z≦0.9, as a sintering aid.
Dependencies are inferred from the claim text.