Non-reducible, low temperature sinterable dielectric ceramic composition, multilayer ceramic chip capacitor using the composition and method for preparing the multilayer ceramic chip capacitor

摘要

Multilayer ceramic chip capacitors which satisfy X5R (−55 to 85° C., &Dgr;C=±15%) requirements and which are compatible with reducing atmosphere sintering conditions so that base metals such as nickel and nickel alloys may be used for internal electrodes are made in accordance with the invention. ;The multilayer ceramic chip capacitor comprises alternately staked, dielectric ceramic layers and internal electrode layers wherein dielectric ceramic layers comprise per 100 mol of BaTiO₃, BaTiO₃; MgCO₃: 0.2 to 3.0 mol; at least one selected from Y₂O₃, Ho₂O₃, Dy₂O₃ and Yb₂O₃: 0.05 to 1.5 mol; Cr₂O₃: 0.1 to 1.5 mol; BaxCa(1−x)SiO₃ (provided that 0≦x≦1): 0.2 to 3.0 mol; and Mn₂V₂O₇: 0.01 to 1.5 mol. The multilayer ceramic chip capacitor of the present invention has a high dielectric constant, satisfies X5R characteristics can be sintered at a low temperature of 1,200 to 1,250° C.