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:
May. 22, 1990
Filed:
Jun. 02, 1988
Applicant:
Inventors:
Robert B Campbell, Ben Avon Borough, PA (US);
Edgar L Kochka, Greentree, PA (US);
Paul A Piotrowski, Monroeville, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
1566201 ; 156D / ; 156D / ; 156D / ; 437115 ;
Abstract
A method for doping a silicon melt for growing silicon dendritic web crystals is disclosed. The melt is doped with antimony prior to commencing web growth, which allows the crystals to be grown without the need for replenishing the dopant, and producing crystals having uniform resistivities. Photovoltaic cells produced from crystals grown from the antimony doped melt exhibit superior properties relative to those doped according to other methods.