Patent ID: 7672130

Claim:
A heat dissipating device adapted to be attached to an integrated circuit unit for dissipating heat generated by the integrated circuit unit, said heat dissipating device comprising: a sealed container of a multi-level structure that includes a plurality of hollow floors and a plurality of floor-spacing assemblies, said hollow floors being disposed one above the other and being aligned with each other along a vertical direction, said floor-spacing assemblies being spaced apart from each other and being aligned with each other along a horizontal direction, each of said floor-spacing assemblies including a plurality of hollow spacing walls that are disposed one above the other and that are aligned with each other in the vertical direction, each of said hollow spacing walls of each of said floor-spacing assemblies extending upwardly from a respective one of said hollow floors and being spaced apart from an adjacent one of said hollow spacing walls of an adjacent one of said floor-spacing assemblies in the horizontal direction by an air gap that is adapted for passage of cooling air therethrough, each two adjacent ones of said hollow floors being interconnected through said hollow spacing walls of said floor-spacing assemblies disposed therebetween; wherein said sealed container has a hot end that is adapted to be attached to the integrated circuit unit, and a cold end that is opposite to said hot end in the vertical direction, said sealed container defining a liquid reservoir that is disposed adjacent to said hot end and that is adapted to receive a working fluid therein, a condensate reservoir that is disposed adjacent to said cold end and that is adapted to collect a condensate condensed from a vapor of the working fluid vaporized in said liquid reservoir by absorbing heat generated by the integrated circuit unit, and a plurality of fluid passages extending between and in fluid communication with said liquid reservoir and said condensate reservoir, each of said fluid passages extending through said hollow spacing walls of a respective one of said floor-spacing assemblies that are disposed between said liquid reservoir and said condensate reservoir and through said hollow floors that are disposed between said liquid reservoir and said condensate reservoir.