Low Distortion Dielectric Ceramics for Base-Metal-Electrode MLCC

A dielectric ceramic with the main phase of (Ca,Sr,Ba)(Zr,Ti)O3 was successfully sintered in reducing atmosphere. The crystal phases were analyzed by the XRD method. A proper synthesis process was used to obtain the dielectric material without ferroelectric BaTiO3 phase. With high dielectric constant(er: 300~400), low dielectric loss (tgδ ≤30×10-4), low capacitance changes under DC bias (about 0.03% when the dc bias is 2.5kV/mm), the dielectric material is applicable for low distortion base-metal-electrode MLCC.