Patent ID: 6613705
Filing Date: 2003-09-02
Classification: C04B,H01B,H01G,H01P

Abstract:
A reduction-stable COG ceramic compound having a high dielectric constant, particularly for multi-layer capacitors or LC filters with Cu electrodes based on the material system BaOâ€”Nd2O3â€”Sm2O3â€”TiO2, comprising:a composition in the region of the phase formation of rhombic bronzes including additives of a glass frit from at least one of the following systems: (A) ZnOâ€”B2O3â€”SiO2 (B) K2Oâ€”Na2Oâ€”BaOâ€”Al2O3â€”ZrO2â€”ZnOâ€”SiO2â€”B2O3, or (C) Li2Oâ€”BaOâ€”B2Oâ€”SiO2; and including the general formula Ba6âˆ’x(SmyNd1âˆ’y)8+2x/3Ti18O54+p wt. % glass frit with 1&lE;x&lE;2, 0.5&lE;y1.0 and 3