EXTRUDIERTE KONDENSATORELEKTRODE UND HERSTELLUNGSVERFAHREN

Tantalum electrode material is produced which has extremely low tortuosity, exceptionally low ESL and ESR, potentially extended high frequency performance, very high volumetric efficiency, and reduced tantalum consumption per electrode. The electrode material is characterized by having a cross-secti...

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Bibliographische Detailangaben
Hauptverfasser:	FIFE, JAMES A., THORNBURY, BRISTOL BS12 24Q, GB, KUMAR, PRABHAT, ALLENTOWN, PA 18103, US, KNUDSON, DAVID, ANDREW, GILBERTSVILLE, PA 19525, US, PATHARE, VIREN, ALLENTOWN, PA 18103, US
Format:	Patent
Sprache:	ger
Schlagworte:	ALLOYS APPARATUS THEREFOR AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMISTRY ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PUNCHING METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Tantalum electrode material is produced which has extremely low tortuosity, exceptionally low ESL and ESR, potentially extended high frequency performance, very high volumetric efficiency, and reduced tantalum consumption per electrode. The electrode material is characterized by having a cross-section composed of plates of tantalum separated by spaced gaps resulting in a highly dense (volumetric efficiency) electrode. The plates are electrically interconnected which also adds to the structural stability of the article. This is made possible by being able to carefully control the geometry of the tantalum material during processing. A method for producing such material includes extruding a billet filled with a (preferentially geometrically uniform) mixture of rods of tantalum and an extrudable metal. When the billet has been sufficiently reduced in size and severed, the extrudable metal is removed by selectively dissolving with acid. In addition to the above advantages, the resulting article is particularly adapted for use in super-miniaturization applications.