• 제목/요약/키워드: nano tungsten coated copper powder

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Development of Nano-Tungsten-Copper Powder and PM Processes

  • Lee, Seong;Noh, Joon-Woong;Kwon, Young-Sam;Chung, Seong-Taek;Johnson, John L.;Park, Seong-Jin;German, Randall M.
    • 한국분말야금학회:학술대회논문집
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    • 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part 1
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    • pp.377-378
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    • 2006
  • Thermal management technology is a critical element in all new chip generations, caused by a power multiplication combined with a size reduction. A heat sink, mounted on a base plate, requires the use of special materials possessing both high thermal conductivity (TC) and a coefficient of thermal expansion (CTE) that matches semiconductor materials as well as certain packaging ceramics. In this study, nano tungsten coated copper powder has been developed with a wide range of compositions, 90W-10Cu to 10W-90Cu. Powder technologies were used to make samples to evaluate density, TC, and CTE. Measured TC lies among theoretical values predicted by several existing models.

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