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:
May. 17, 2016
Filed:
May. 23, 2014
Applicant:
Siltronic Ag, Munich, DE;
Inventor:
Thomas Schroeck, Kastl, DE;
Assignee:
Siltronic AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C30B 15/22 (2006.01); C30B 29/00 (2006.01); C30B 29/06 (2006.01); C30B 15/26 (2006.01);
U.S. Cl.
CPC ...
C30B 15/22 (2013.01); C30B 15/26 (2013.01); C30B 29/00 (2013.01); C30B 29/06 (2013.01);
Abstract
The diameter of a single crystal is controlled to a set point diameter during pulling of the single crystal from a melt contained in a crucible and which forms a meniscus at a phase boundary on the edge of the single crystal, the meniscus having a height which corresponds to the distance between the phase boundary and a level of the surface of the melt outside the meniscus, comprising repeatedly: