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US 2008/0073061 A1Published application
Variable depth microchannels
OwnerRajen Dias, Lars Skoglundinventors
Life of this patent
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Abstract
A channel heat exchanger and cooling system with plan-wise variable rate of cooling that corresponds, in part, to a plan-wise variable heat flux and a method of manufacturing and using same.
Claims20
A micro-channel heat exchanger comprising:
- a base;
- a first region of fins of first depth extending from one side of, and integral to, the base;
- a second region of fins of second depth different from the first depth from the one side of, and intregal to, the base, wherein distal ends of the fins from the first region and the second region extend to the same height from the base;
- a lid sealingly engaged to the distal ends of the fins.
1 more element
An integrated circuit cooling system comprising:
- a coolant;
- a channel heat exchanger with a base and a plurality of channels filled by the coolant and, and thereby, hydraulically coupled, the channel heat exchanger to thermally couple to an integrated circuit, wherein a depth of the channels of the channel heat exchanger varies in a plan-wise distribution to give a first region of channels a first depth and a second region of channels a second depth to provide a plan-wise variable rate of cooling;
- a second heat exchanger to reject heat transferred to the coolant through the channel heat exchanger.
A method of manufacture for a variable depth micro-channel heat exchanger comprising:
- ablating portions of a substrate to form a first region of fins protruding from and integral to a base;
- ablating portions of a substrate to form a second region of fins protruding from and integral to the base, wherein a depth into the base of the first region and a depth into the base of the second region differs.
A method of using a cooling system including a variable depth channel heat exchanger comprising:
- substantially filling a channel heat exchanger with a coolant, wherein the channel heat exchanger includes a base and a plurality of channels, wherein a channel depth of the channel heat exchanger varies in a plan-wise distribution to give a first region of channels a first depth and a second region of channels a second depth, wherein fins that form the first region of channels and fins that form the second region of channels extend from one side of the base, and wherein substantially filling the channel heat exchanger with a coolant hydraulically couples the channels to provide a plan-wise variable rate of cooling;
- substantially filling a second heat exchanger with the coolant;
- and
- hydraulically coupling the micro-channel heat exchanger to the second heat exchanger to reject heat transferred to the coolant by channel heat exchanger.
1 more element
Dependencies are inferred from the claim text.