PROCESS FOR MELTING SILICON POWDERS

A process for melting powders of a semiconductor material, such as silicon, to yield a high-purity solid product. The process generally entails introducing the powder into an elevated end of a tube inclined from horizontal and, while maintaining an inert atmosphere within the tube, rotating the tube...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LOU VICTOR LIENKONG, RAND JAMES, JONCZYK RALF
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A process for melting powders of a semiconductor material, such as silicon, to yield a high-purity solid product. The process generally entails introducing the powder into an elevated end of a tube inclined from horizontal and, while maintaining an inert atmosphere within the tube, rotating the tube so as to agitate and cause the powder therein to flow toward an oppositely-disposed lower end of the tube while heating the tube so that the powder melts as it flows toward the lower end of the tube. The molten material is then allowed to flow freely from the lower end of the tube and subsequently solidify to form a product.