| 摘要 |
PROBLEM TO BE SOLVED: To provide a formation method of an external electrode of a laminated ceramic capacitor by a thin film which ensures connection with an inner electrode. SOLUTION: After a plurality of inner electrodes 2 are arranged inside a body piece 1 formed of ceramic and the inner electrode 2 is exposed from the body piece 1, a metallic film 4 having a diffusion coefficient which is different from that of a material of the inner electrode 2 is formed in an exposed surface of the inner electrode 2 and is subjected to heat treatment. Thereafter, an external electrode 3, consisting of three electrode layers which make a continuity with the inner electrode 2 is provided, and thereby an external electrode of a laminated ceramic capacitor is formed. According to the method, the inner electrode 2 is exposed sufficiently from a side edge face of the body piece 1, connection to the external electrode 3 is ensured, and problems such as loss of electrostatic capacity and increase of dielectric loss tangent (tanδ) can be resolved.
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