Patent ID: 6588498
Filing Date: 2003-07-08
Classification: F28D,F28F,H01L

Abstract:
A heat sink assembly for cooling an electronic device, said heat sink assembly comprising:an air moving device housed in a shroud for causing an axially directed airflow through said shroud; a duct having one end thereof attached to said shroud and in fluid communication therewith; and a thermosiphon attached to a second end of said duct and in fluid communication therewith, wherein said thermosiphon comprises: a boilerplate, said boilerplate having a top surface including a plurality of pyramid shaped fins projecting upwardly from said top surface, and further having a bottom surface for receiving the electronic device to be cooled; a plurality of spaced apart condenser tubes mounted above said boilerplate, said boilerplate and said condenser tubes defining a vapor chamber therebetween for receiving a working fluid therein; and a plurality of convoluted fins extending between each adjacent pair of said condenser tubes.