DIELECTRIC CERAMIC AND MANUFACTURING METHOD OF DIELECTRIC CERAMIC, AS WELL AS LAMINATED CERAMIC CAP

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PROBLEM TO BE SOLVED : To realize a dielectric ceramic which has a good dielectric characteristic and can get desired good reliability without deteriorating the temperature characteristic even when the thickness of the dielectric ceramic layer is thinly layered under 1 μm, and to realize a laminated ceramic capacitor using the same. SOLUTION : The dielectric ceramic layers 1a-1g (not shown in the figure) of the laminated ceramic capacitor contain (Ba, Ca)mTiO3 (wherein, m is 0.998-1.020, and the molar quantity of the contained Ca component is 0-15 parts by mol against 100 parts by mol of Ti component) as a main component, and a given molar quantity of SiO2, V2O5, MnO, MgO and specified rare earth oxides as a sub component. In addition, the component V is uniformly dispersed in the grain boundaries and hardly exists in the main component. The dielectric ceramic can be manufactured by adding SiO2-V2O5 in a form of mixed crystals to the main component that is highly crystallized. COPYRIGHT : (C)2007, JPO&INPIT