SEMICONDUCTOR CERAMIC AND STACK SEMICONDUCTOR CERAMIC CAPACITOR CAPABLE OF OBTAINING HIGH DIELECTRIC PROPERTY AND HIGH INSULATION RESISTANCE

摘要

PURPOSE: A semiconductor ceramic and stack semiconductor ceramic capacitor are provided to obtain semiconductor ceramic having high electrostatic capacity.;CONSTITUTION: In BaTiO3 based semiconductor ceramic, Ti site of BaTiO3 is concurrently substituted by Ga and Nb. The BaTiO3 based semiconductor ceramic is represented by BaA(Ti1-A-BGaANbB)BO3. The molar ratio of A/B is 0.92-100 and the molar ratio of A/B is 0.900-1.060. The BaTiO3 based semiconductor ceramic powder is represented by BaA(Ti1-A-BGaANbB)BO3. The BaTiO3 based semiconductor ceramic powder has maximum particle size of 1 micro meter or less. A stack semiconductor ceramic capacitor includes a semiconductor ceramic layer which is composed of the BaTiO3 based semiconducting ceramic. The stack semiconductor ceramic capacitor comprises inner electrodes(2a-2e), part microsomes(1) and outer side electrodes(3a,3b).;COPYRIGHT KIPO 2013