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Delivery of vapor precursor from solid source

  • US 8,012,876 B2
  • Filed: 12/02/2008
  • Issued: 09/06/2011
  • Est. Priority Date: 12/02/2008
  • Status: Active Grant
First Claim
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1. A method for semiconductor processing comprising:

  • providing a precursor in a solid state in a storage container;

    intermittently heating the storage container to a temperature above the melting temperature of the precursor, thereby intermittently transforming the precursor from the solid state into a liquid state in the storage container;

    flowing the precursor, while in the liquid state, from the storage container into a liquid holding container; and

    flowing the precursor from the liquid holding container to a reaction chamber.

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