Patent ID: 7692925

Claim:
A heat dissipation device for cooling an electronic component, the heat dissipating device comprising: a base having a substrate with a bottom thereof for attaching to the electronic component, two heat spreaders integrally extending upwardly from a top of the substrate, the heat spreaders being parallel to each other; a first fin unit comprising a plurality of first parallel fins arranged on the substrate and sandwiched between the heat spreaders, the first fin unit defining pluralities of first channels therein; two second fin units each comprising a plurality of second parallel fins and arranged on the substrate and located at a lateral, outer side of one of the heat spreaders, each of the second fin units defining pluralities of second channels therein; and further comprising two heat pipes arranged on the substrate, each of the heat pipes being sandwiched between one of the heat spreaders and a corresponding one of the second fin units; wherein the plurality of second fins of the two second fin units are perpendicular to the heat spreaders, and the extending directions of the first and second channels are perpendicular to each other; wherein a plurality of grooves are defined in the heat spreaders and the second fin units for receiving the heat pipes therein; and wherein two of the grooves are defined in junctions of the heat spreaders and the substrate, respectively, and two oblique leading surfaces are formed in the top of the substrate and adjacent to the heat spreaders and communicate with the two of the grooves for facilitating assembly of the heat pipes into the two of the grooves.