Flexible Heat Spreader with Differential Thermal Conductivity
First Claim
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1. A heat spreader comprising:
- a first portion, the first portion comprising graphene, the first portion providing localized heat spreading in certain directions across the heat spreader; and
,a second portion, the second portion comprising a solid-solid phase change material, the second portion providing generalized heat spreading in multiple directions across the heat spreader.
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Abstract
A heat spreader which is configured using a composite of materials to provide localized heat spreading in certain directions across portions of the heat spreader while providing generalized heat spreading in multiple directions across other portions of the heat spreader. In certain embodiments, the localized heat spreading is across an XY plane and the generalized heat spreading is substantially continuous in XYZ directions.
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Citations
12 Claims
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1. A heat spreader comprising:
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a first portion, the first portion comprising graphene, the first portion providing localized heat spreading in certain directions across the heat spreader; and
,a second portion, the second portion comprising a solid-solid phase change material, the second portion providing generalized heat spreading in multiple directions across the heat spreader. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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a processor; a data bus coupled to the processor; and a heat spreader thermally coupled to the processor, the heat spreader comprising a first portion, the first portion comprising graphene, the first portion providing localized heat spreading in certain directions across the heat spreader; and
,a second portion, the second portion comprising a solid-solid phase change material, the second portion providing generalized heat spreading in multiple directions across the heat spreader. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification