LAMINATED CAPACITOR

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PROBLEM TO BE SOLVED : To provide a laminated capacitor improving the dielectric constant of ceramics without lowering an insulation resistance capable of obtaining a large electrostatic capacity and having an excellent reliability. SOLUTION : In the laminated capacitor 1, a plurality of internal electrodes 3a, 3b, 4a and 4b are formed so as to be superposed through ceramic layers in a ceramics sintered body 2 composed of (Ba, Ca)(Ti, Zr)O3 ceramics as a main component and ceramics containing Ni and an rare earth element R as by-components at a mol ratio Ni/R at a value from 0.05 to 0.25. In the laminated capacitor 1, sections superposing a plurality of the internal electrodes 3a, 3b, 4a and 4b through the ceramic layers are used as an internal layer 2W and ceramics formed outside the laminating direction of the internal layer 2W and laminating no internal electrode through ceramics are used as external layers 2V. In the laminated capacitor 1, B/A is set in 0.5 or less when the thickness of the internal layer 2W is represented by A and the whole thickness of the external layers 2V and 2V by B. COPYRIGHT : (C)2008, JPO&INPIT