Heat spreader
First Claim
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1. A heat spreader comprising:
- a chamber comprising first surface, a second surface and chamber sides;
fluid sealed in said chamber, and at least two actuators disposed within said chamber, whereby an operational phase of the actuators results in a substantially constant velocity of fluid flow across a core region of the heat spreader.
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Abstract
A flexible, self-contained active multi-phase heat spreader apparatus for cooling electronic components, the heat spreader having fluid sealed between two plates and a pumping mechanism to actuate multi-phase flow of the fluid. Thermal energy from an electronic component in contact with the heat spreader is dissipated from a core region via the working fluid to the entire heat spreader, and then to a heat sink. Surface enhancement features located between the two plates aid transfer of thermal energy from a first metal plate into the fluid.
52 Citations
20 Claims
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1. A heat spreader comprising:
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a chamber comprising first surface, a second surface and chamber sides;
fluid sealed in said chamber, and at least two actuators disposed within said chamber, whereby an operational phase of the actuators results in a substantially constant velocity of fluid flow across a core region of the heat spreader. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for transferring heat away from a heat source, the method comprising the steps of:
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providing a chamber in thermal contact with the heat source, said chamber comprising a first surface, a second surface and chamber sides, fluid sealed in said chamber, and at least two actuators disposed in said chamber, actuating said actuators such that the operational phase of the actuators results in a substantially constant velocity of fluid flow across a core region of the chamber. - View Dependent Claims (17, 18, 19, 20)
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Specification