Solid electrolytic capacitor containing a sequential vapor-deposited dielectric film
AssigneeKYOCERA AVX Components Corporation
InventorsJan Petrzilek, Mitchell D. Weaver
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Abstract
A capacitor which can be reliably employed at high voltages is provided. More particularly, the capacitor comprises a solid electrolytic capacitor element that contains a sintered porous anode body, a dielectric film that is formed by sequential vapor deposition and overlies the anode body, and a solid electrolyte that overlies the dielectric film is provided.
Claims21
A capacitor comprising a solid electrolytic capacitor element that contains a sintered porous anode body containing niobium or an oxide of niobium, a homogeneous dielectric film that consists essentially of an oxide of tantalum that is formed by sequential vapor deposition and overlies the anode body, wherein the dielectric film has a uniform thickness of from about 10 nanometers to about 1,000 nanometers, and a solid electrolyte that overlies the dielectric film.
Dependencies are inferred from the claim text.