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:
Jun. 29, 1993
Filed:
Apr. 12, 1991
Applicant:
Inventors:
Kyojiro Kaneko, Ibaraki, JP;
Hideyuki Mizumoto, Kadoma, JP;
Assignee:
Osaka Titanium Co., Ltd., Hyogo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
1566204 ; 156600 ; 156601 ; 1566171 ; 1566181 ; 1566191 ; 156D / ; 156D / ; 156D / ;
Abstract
A single crystal silicon is prepared by providing a silicon melt reservoir formed of an induction coil coated on its internal surfaces with a high melting insulating material which is subjected to an electromagnetic field which heats silicon placed in said melt reservoir, melting silicon in the melt reservoir by the application of the electromagnetic field and simultaneously depositing a scull layer of silicon on the inner surface of said reservoir, and pulling up a single crystal silicon rod from the silicon melt in the melt reservoir.