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:
Aug. 23, 2016
Filed:
Nov. 07, 2014
Applicant:
Wacker Chemie Ag, Munich, DE;
Inventors:
Hanns Wochner, Burghausen, DE;
Christian Gossmann, Emmerting, DE;
Herbert Lindner, Ostermiething, AT;
Assignee:
WACKER CHEMIE AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/037 (2006.01); B08B 3/08 (2006.01); C01B 33/00 (2006.01); H01L 21/67 (2006.01);
U.S. Cl.
CPC ...
B08B 3/08 (2013.01); C01B 33/00 (2013.01); C01B 33/037 (2013.01); H01L 21/67057 (2013.01);
Abstract
Polysilicon fragments are purified to remove metal contaminates by contacting the fragments with a purifying liquid at a flow rate >100 mm/sec. Effective removal without abrasion is accomplished.