Solid electrolytic capacitor for use at high temperatures
AssigneeAVX Corporation
InventorsJan Petrzilek, Martin Biler
Life of this patent
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Abstract
A capacitor that comprises a capacitor element that includes an anode that contains a dielectric formed on a sintered porous body, a solid electrolyte overlying the anode, and a cathode coating is provided. The cathode coating includes a noble metal layer (e.g., gold) overlying the solid electrolyte and a layer overlying the noble metal layer that includes sintered metal particles (e.g., silver particles).
Claims25
A capacitor comprising a capacitor element that includes an anode that contains a dielectric formed on a sintered porous body, a solid electrolyte overlying the anode, and a cathode coating that includes a noble metal layer overlying the solid electrolyte and a layer overlying the noble metal layer that includes sintered metal particles;
- and
- wherein the capacitor exhibits a capacitance of about 30 nanoFarads per square centimeter or more and /or a dissipation factor of from about 1% to about 25%.
A capacitor comprising a capacitor element that includes an anode that contains a dielectric formed on a sintered porous body, a solid electrolyte overlying the anode, and a cathode coating that includes a noble metal layer overlying the solid electrolyte and a layer overlying the noble metal layer that includes sintered metal particles;
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- wherein the solid electrolyte includes manganese dioxide.
Dependencies are inferred from the claim text.