Semifinished products with a structured sinter-active surface and a process for their production
AssigneeH.C. Starck GmbH
InventorsMelanie Stenzel, Andreas Scharf, Helmut Haas, Holger Brumm, Timo Langetepe, Christoph Schnitter
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Abstract
The invention comprises semifinished products with a structured surface, the semifinished product comprising an oxidized and subsequently re-reduced surface containing at least one refractory metal, and also a process for their production and their use for producing high-capacitance components.
Claims17
A semifinished product comprising a structured sinter-active surface, the surface being oxidized and subsequently re-reduced and including at least one refractory metal wherein a ratio of the microscopic surface area to the macroscopic surface area of the oxidized and re-reduced surface is in the range of 10 to 100,000, and wherein the oxidation of the structured sinter-active surface is thermal or anodic.
A high-capacitance component comprising a semifinished product, the semifinished product having a structured sinter-active surface, wherein the surface is oxidized and subsequently re-reduced and includes at least one refractory metal wherein a ratio of the microscopic surface area to the macroscopic surface area of the oxidized and re-reduced surface is in the range of 10 to 100,000, and wherein the oxidation of the structured sinter-active surface is thermal or anodic.
Dependencies are inferred from the claim text.