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:
Oct. 03, 1989
Filed:
Sep. 26, 1988
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
A method and apparatus for producing disk-shaped or wafer-shaped silicon bodies from a silicon tape produced in a horizontal tape-drawing process, utilizing a woven fabric of graphite threads as a carrier for the silicon to be crystallized. The crystallization of the molten silicon is initiated by heating sources positioned about the melt crucible. Radiation losses are reduced by providing shielding members in predetermined, prescribed intervals corresponding to the areas at which the parting lines are to be provided in the tape. The shielding members reduce the radiation losses to such an extent that a readily frangible line is produced in the area of the shielding members enabling the tape to be broken up at regular, predetermined intervals on a continuous basis.