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. 28, 1984
Filed:
Dec. 27, 1982
Applicant:
Inventors:
David L Bender, Thousand Oaks, CA (US);
Samuel N Rea, Thousand Oaks, CA (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B / ; C30B / ; C30B / ;
U.S. Cl.
CPC ...
156624 ; 156D / ; 156D / ; 422246 ; 422254 ; 1641222 ; 164423 ; 164427 ; 164443 ; 425223 ; 425224 ; 264212 ;
Abstract
A silicon ribbon growth wheel having an internal cooling fluid contacting surface modified to provide a lateral temperature profile on the wheel surface of lower temperature near the wheel edges. In a preferred form the inner surface is provided with grooves near the wheel edges to increase heat conduction to the cooling fluid at the wheel edges. A method for surface temperature profiling the growth wheel is also disclosed. A method for surface temperature profiling the growth wheel is also disclosed.