Abstract: Multilayer ceramic chip capacitors which satisfy Y5V requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as nickel, copper, and alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise BaTiO3 doped with other metal oxides such as MgO, CaO, ZnO, MnO2, ZrO2, SiO2, Nd2O3, Nb2O5, and Y2O3.

Abstract: Multilayer ceramic chip capacitors which satisfy X7R requirements and which are compatible with reducing-atmosphere sintering conditions so that non-noble metals such as nickel, copper, and alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers preferably contain BaTiO3 as the major component and Mn3O4 Y2O3, Ho2O3, CaCO3, SiO2, B2O3, Al2O3, MgO, and CaO as minor constituents. They are batched in a proportion that there are preferably present 99.00 to 98.5 wt. % BaTiO3, 0.336 to 0.505 wt. % Mn3O4, 0.198 to 0.296 wt. % Y2O3, 0.132 to 0.198 wt. % Ho2O3, 0.199 to 0.299 wt. % CaCO3, 0.057 to 0.085 wt. % SiO2, 0.039 to 0.058 wt. % B2O3, 0.018 to 0.027 wt. % Al2O3, 0.016 to 0.025 wt. % MgO and 0.005 to 0.007 wt.

Abstract: Multilayer ceramic chip capacitors which satisfy X7R requirements and which are compatible with reducing-atmosphere sintering conditions so that non-noble metals such as nickel, copper, and alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers preferably contain BaTiO3 as the major component and Mn3O4, Y2O3, Ho2O3, CaCO3, SiO2, B2O3, Al2O3, MgO, and CaO as minor constituents. They are batched in a proportion that there are preferably present 99.00 to 98.5 wt. % BaTiO3, 0.336 to 0.505 wt. % Mn3O4, 0.198 to 0.296 wt. % Y2O3, 0.132 to 0.198 wt. % Ho2O3, 0.199 to 0.299 wt. % CaCO3, 0.057 to 0.085 wt. % SiO2, 0.039 to 0.058 wt. % B2O3, 0.018 to 0.027 wt. % Al2O3, 0.016 to 0.025 wt. % MgO and 0.005 to 0.007 wt.