Patent ID: 6725909
Filing Date: 2004-04-27
Classification: F28D,F28F,H01L

Abstract:
A heat-dissipating device comprising:a heat transfer member adapted to be disposed on a heat generating source; a heat fin unit including a stack of heat-dissipating fin plates, each of said fin plates being formed with a through hole and a periphery that defines said through hole and that is formed with an annular spacer, said annular spacer of an upper one of said fin plates being connected securely to said periphery of a lower one of said fin plates such that adjacent ones of said fin plates form a vertical clearance therebetween and such that said annular spacers of said fin plates cooperatively form a heat transfer pipe, said heat transfer pipe having an inner pipe surface, an upper portion, and a lower portion mounted securely on said heat transfer member; a heat transfer medium contained in said heat transfer pipe; a cover for closing said upper portion of said heat transfer pipe; and a capillary unit formed in said inner pipe surface of said heat transfer pipe.