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Method for manufacturing granular silicon crystal

  • US 7,323,047 B2
  • Filed: 03/22/2006
  • Issued: 01/29/2008
  • Est. Priority Date: 03/25/2005
  • Status: Expired due to Fees
First Claim
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1. A method for manufacturing a granular silicon crystal comprising:

  • allowing silicon melt in a crucible to be granularly discharged and fallen from a nozzle part composed of silicon carbide or silicon nitride; and

    cooling and solidifying the granular silicon melt during falling,to the silicon melt in the crucible, a carbon source being added when the nozzle part is composed of silicon carbonate, and a nitrogen source being added when the nozzle part is composed of silicon nitride.

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