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.

Date of Patent:
Mar. 14, 2006

Filed:

Jul. 31, 2002
Applicant:

Ludwig Altmannshofer, Massing, DE;

Inventor:

Ludwig Altmannshofer, Massing, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C30B 35/00 (2006.01); C30B 13/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for the production of a single crystal has the single crystal crystallizing from a melt and being subjected to a rotation with an alternating rotation direction. The single crystal is periodically rotated through a sequence of rotation angles, and the rotation direction is changed after each rotation through a rotation angle of the sequence, with a change of the rotation direction defining an inversion point on the circumference of the single crystal. There is at least one recurring pattern of inversion points created, in which the inversion points lie distributed on straight lines that are aligned parallel with the z-axis and are spaced apart uniformly from one another.


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