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Method and structure for processing thin film PV cells with improved temperature uniformity

  • US 8,398,772 B1
  • Filed: 08/17/2010
  • Issued: 03/19/2013
  • Est. Priority Date: 08/18/2009
  • Status: Expired due to Fees
First Claim
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1. An apparatus for reactive thermal treatment of thin film photovoltaic devices, the apparatus comprising:

  • a furnace tube including an inner wall extended from a first end to a second end;

    a gas supply device coupled to the second end and configured to fill one or more working gases into the furnace tube;

    a cover configured to seal the furnace tube at the first end and serve as a heat sink for the one or more working gases;

    a fixture mechanically attached to the cover, the fixture being configured to load an array of substrates into the furnace tube as the cover seals the furnace tube; and

    a shaped baffle member disposed seamlessly at a lower portion of the inner wall for blocking a convection current of the one or more working gases cooled by the cover.

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