Graphite-containing substrates for LED packages
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United States of America Patent
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Apr 25, 2017
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Nov 5, 2013
filing date -
Nov 5, 2012
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Abstract
Substrates and packages for LED based light devices can incorporate a material with high thermal conductivity in at least the lateral direction (e.g., graphite or graphene) to spread heat across the surface of the substrate. A substrate or layer in a multi-layer substrate can have a graphite core disposed between ceramic sublayers that provide electrical insulation and thermal conductivity in the transverse direction. Another substrate or layer in a multi-layer substrate can be fabricated using a composite of graphite and ceramic materials.
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