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:
Sep. 25, 1979
Filed:
Dec. 07, 1978
Applicant:
Inventors:
Thomas R Anthony, Schenectady, NY (US);
Harvey E Cline, Stanford, CA (US);
Davis K Hartman, Manlius, NY (US);
Mike F Chang, Liverpool, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
148-15 ; 148177 ; 148187 ; 252 / ;
Abstract
A wafer of semiconductor material processed by thermal gradient zone melting is supported by a beveled inner peripheral surface defining an aperture in a guard ring to minimize the distortion of the thermal gradient at the outer peripheral edge surface of the wafer.