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Multi-layered micro-channel heat sink, devices and systems incorporating same

  • US 6,675,875 B1
  • Filed: 02/19/2002
  • Issued: 01/13/2004
  • Est. Priority Date: 08/06/1999
  • Status: Expired due to Fees
First Claim
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1. A multi-layer micro-channel heat sink for use with a heat generating surface, said micro-channel heat sink comprising:

  • at least three layers, each said layer adjacent to and in thermal communication with at least one other said layer, wherein one said layer is adjacent to and in thermal communication with said heat generating surface, each said layer comprising an input, an output and at least one micro-channel for transporting a coolant from said input to said output of a respective layer, wherein each said layer is configured such that coolant flowing through said layer flows in a different direction than coolant flowing through an adjacent layer;

    a flow splitter, said flow splitter in fluid communication with each said input, said flow splitter adapted to receive a common flow of coolant and to deliver coolant to each said input;

    a flow combiner, said flow combiner in fluid communication with each said output, said flow combiner adapted to receive coolant from each said output and combine said received coolant into a common flow of coolant; and

    a coolant circulating device for supplying said flow splitter with a common flow of coolant and for receiving said common flow of coolant from said flow combiner so as to circulate coolant across each said layer of said plurality of layers.

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