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:
Feb. 01, 2005
Filed:
Apr. 23, 2002
Gerald W. Iseler, Chelmsford, MA (US);
David F. Bliss, Arlington, MA (US);
Vladimir L. Tassev, Wakefield, MA (US);
Gerald W. Iseler, Chelmsford, MA (US);
David F. Bliss, Arlington, MA (US);
Vladimir L. Tassev, Wakefield, MA (US);
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Abstract
The invention provides for growing semiconductor and other crystals by loading a vessel in its lower portion with a seed crystal, loading a charge thereon in the vessel, heating the charge to a molten state and electromagnetically stirring the melt using magnetic and electric fields to obtain a more uniform composition of melt and slowly reducing the temperature of the melt over the crystal to grow a more uniform crystal from such stirred melt.