Y5V dielectric composition
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United States of America Patent
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Jun 12, 2007
Grant Date -
Oct 19, 2006
app pub date -
Apr 15, 2005
filing date -
Apr 15, 2005
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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 BaTiO.sub.3 doped with other metal oxides such as MgO, CaO, ZnO, MnO.sub.2, ZrO.sub.2, SiO.sub.2, Nd.sub.2O.sub.3, Nb.sub.2O.sub.5, and Y.sub.2O.sub.3.
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