Reinforced Graphite Heat-Spreader for a Housing Surface of an Electronic Device
AssigneeGoogle Inc.
InventorsIhab A. Ali, Duen Hsing Hsieh
Life of this patent
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Abstract
This document describes a reinforced graphite heat-spreader for a surface of a housing component of an electronic device. The reinforced graphite heat-spreader includes a heat-spreader material stack having a layer of graphite material to spread heat. The reinforced graphite heat-spreader also includes an interface material stack that joins the heat-spreader material stack to the housing surface of an electronic device. The interface material stack, which may be formed using embossing techniques, includes protuberances that may be formed from an adhesive material.
Claims22
An electronic apparatus comprising:
- a housing having a non-planar surface region;
- and
- a reinforced graphite heat-spreader, the reinforced graphite heat-spreader including:
- a heat-spreader material stack, the heat-spreader material stack including a layer of a graphite material;
- and
- an interface material stack, the interface material stack joining the non-planar surface region of the housing to the heat-spreader material stack and including:
- a layer of a first polymer material having a first side and a second side, the second side opposite the first side;
- a matrix of protuberances, the matrix of protuberances formed on the first side of the layer of the first polymer material and joining the non-planar surface region of the housing to the layer of the first polymer material;
- and
- a layer of a first adhesive material, the layer of the first adhesive material formed on the second side of the layer of the first polymer material and joining the layer of the first polymer material to the layer of the graphite material of the heat-spreader material stack.
An electronic apparatus comprising:
- a housing having a non-planar surface region;
- a reinforced graphite heat-spreader, the reinforced graphite heat-spreader including:
- a heat-spreader material stack, the heat-spreader material stack including:
- a layer of a first polymer material, the layer of the first polymer material having a nominal thickness;
- a layer of a graphite material;
- and
- a layer of a first adhesive material, the layer of the first adhesive material having another nominal thickness that is approximately one-half the nominal thickness of the layer of the first polymer material;
- and
- an interface material stack, the interface material stack joining the non-planar surface region of the housing to the heat-spreader material stack and including a matrix of protuberances, the matrix of protuberances joined to the non-planar surface region of the housing.
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Dependencies are inferred from the claim text.