Patent ID: 7278468

Claim:
A heat sink assembly for removing heat from an electronic device, said assembly comprising; a base having a top surface and a central axis perpendicular thereto, a plurality of fins extending upwardly from said top surface of said base a distance to a top edge and disposed radially about said central axis, a lid having a bottom surface in spaced relationship with said top edge of said plurality of fins and parallel to said top surface of said base, an upper and lower sidewall extending between said top surface of said base and said bottom surface of said lid and disposed about said plurality of fins, an axial inlet disposed in said lid for directing a fluid parallel to said central axis and onto said top surface of said base, an outlet disposed in said upper sidewall between said top edge of said plurality of fins and said bottom surface of said lid for discharging the fluid, and a peripheral inlet disposed in said lower sidewall between said top edge of said plurality of fins and said top surface of said base for directing the fluid perpendicular to said central axis and at said plurality of fins.