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Patent Searching and Data


Title:
PURIFICATION OF SILICON BY ELECTRIC INDUCTION MELTING AND DIRECTIONAL PARTIAL COOLING OF THE MELT
Document Type and Number:
WIPO Patent Application WO/2010/065401
Kind Code:
A3
Abstract:
The present invention is apparatus for, and method of, purification of silicon by electric induction heating and melting of silicon in a crucible or susceptor vessel, with subsequent directional partial cooling of the silicon melt to an initial amorphous-to-crystalline (solidification) temperature to produce a directionally solidified purified mass of silicon and a separate mass of high impurity silicon. The mass of high impurity silicon is removed from the vessel and the purified mass of silicon at solidification temperature is remelted in the vessel for removal from the vessel or futher processing.

Inventors:
FISHMAN OLEG S (US)
Application Number:
PCT/US2009/065780
Publication Date:
September 02, 2010
Filing Date:
November 24, 2009
Export Citation:
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Assignee:
INDUCTOTHERM CORP (US)
FISHMAN OLEG S (US)
International Classes:
C01B33/037; C22B9/00
Foreign References:
US20070081572A12007-04-12
US20060042725A12006-03-02
US4915723A1990-04-10
US4923508A1990-05-08
Other References:
See also references of EP 2387546A4
Attorney, Agent or Firm:
POST, Philip, O. (Inc.10 Indel Avenue,P.O. Box 15, Rancocas New Jersey, US)
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