The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2005
Filed:
Nov. 21, 2001
Leslaw Mleczko, Bochum, DE;
Sigurd Buchholz, Köln, DE;
Maria Pilar Ezpeleta Tejero, Leverkusen, DE;
Felix-karl Oliver Schlüter, Düsseldorf, DE;
Leslaw Mleczko, Bochum, DE;
Sigurd Buchholz, Köln, DE;
Maria Pilar Ezpeleta Tejero, Leverkusen, DE;
Felix-Karl Oliver Schlüter, Düsseldorf, DE;
Solarworld Aktiengesellschaft, Bonn, DE;
Abstract
The invention relates to a method for producing highly pure, granular silicon by decomposing a gas containing silicon in a procedure comprising at least two operating states, at least one state comprising the increased formation of nucleus particles from the decomposition of said gas containing silicon and at least one other state comprising the increased separation of the silicon with expansion of the diameter of the silicon granules. The invention also relates to the use of silicon produced in this way and to highly pure, granular silicon particles which are characterised by a coreless structure.