Method for making heat sink vacuum

  • US 6,257,310 B1
  • Filed: 08/19/1999
  • Issued: 07/10/2001
  • Est. Priority Date: 08/19/1999
  • Status: Expired due to Term
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First Claim
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1. A method for forming a heat transfer apparatus from first and second materials which are characterized by first and second melting temperatures, respectively, and, wherein, the first and second materials alloy at a lower temperature than each of the first and second temperatures, the method comprising the steps of:

  • forming a conduit construct including a first portion from the first material, the first portion forming a passageway which traverses the distance between first and second construct ends;

    disposing at least the construct first portion in a mold cavity;

    evacuating substantially all air from the construct;

    introducing the second material in molten fluid form into the cavity so as to cover the construct; and

    permitting the molten material to solidify.

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