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. 22, 1978
Filed:
Aug. 17, 1976
Applicant:
Inventor:
Franz Kohl, Burghausen, DE;
Assignee:
Wacker-Chemitronik Gesellschaft fur Elektronik-Grundstoffe mbH, Burghausen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; B01D / ;
U.S. Cl.
CPC ...
219 1043 ; 2327 / ; 156605 ; 219 1079 ;
Abstract
Method for the production of dislocation-free, monocrystalline semiconduc rods with large diameters by crucible-free zone melting, which comprises producing the melting zone in a uniform electromagnetic field substantially symmetrical to the rod axis. The invention also relates to an induction heating coil for carrying out the method.