DIELECTRIC CERAMIC COMPOSITION, MULTILAYER DIELECTRIC SUBSTRATE, ELECTRONIC COMPONENT, AND METHOD FOR PRODUCING DIELECTRIC CERAMIC COMPOSITION

摘要

Disclosed is a dielectric ceramic composition which has high dielectric constant and suppressed low thermal expansion coefficient. Also disclosed are a multilayer dielectric substrate using the dielectric ceramic composition, and an electronic component. Specifically disclosed is a dielectric ceramic composition which contains an ATiO3 (wherein A represents either Ca and/or Sr) phase and an AAl2Si2O8 phase, said dielectric ceramic composition being characterized in that the dielectric constant at 3 GHz is not less than 10 and the average thermal expansion coefficient over the temperature range of 40-600°C is less than 7 ppm/°C.