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 / ; 1641222 ; 164423 ; 164427 ; 164443 ; 422246 ; 422254 ; 425223 ; 425224 ; 264212 ;
Abstract
A silicon ribbon growth wheel having a thermal resistance zone between an outer silicon contacting surface and an inner cooling fluid contacting surface to control rate of heat flow from the outer to inner surfaces. In a preferred form the thermal resistance zone is defined by a row of holes through the wheel near the outer surface with said holes isolated from the cooling fluid. A method for controlling the heat flow is also diclosed.