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:
Jan. 05, 2016
Filed:
Dec. 08, 2009
Varatharajan Rengarajan, Pine Brook, NJ (US);
Bryan K. Brouhard, Budd Lake, NJ (US);
Michael C. Nolan, Andover, NJ (US);
Ilya Zwieback, Washington Township, NJ (US);
Varatharajan Rengarajan, Pine Brook, NJ (US);
Bryan K. Brouhard, Budd Lake, NJ (US);
Michael C. Nolan, Andover, NJ (US);
Ilya Zwieback, Washington Township, NJ (US);
II-VI Incorporated, Saxonburg, PA (US);
Abstract
A crucible has a first resistance heater is disposed in spaced relation above the top of the crucible and a second resistance heater with a first resistive section disposed in spaced relation beneath the bottom of the crucible and with a second resistive section disposed in spaced relation around the outside of the side of the crucible. The crucible is charged with a seed crystal at the top of an interior of the crucible and a source material in the interior of the crucible in spaced relation between the seed crystal and the bottom of the crucible. Electrical power of a sufficient extent is applied to the first and second resistance heaters to create in the interior of the crucible a temperature gradient of sufficient temperature to cause the source material to sublimate and condense on the seed crystal thereby forming a growing crystal.