Patent ID: 6640888
Filing Date: 2003-11-04
Classification: F28F,H01L

Abstract:
A heat sink comprising:a plurality of spaced fins made of a thermally conductive material, each of said fins having at least one through-hole surrounded by an annular wall projecting from said fin, said through-holes being aligned one with another; a heat-conductive rod inserted in said aligned through-holes and fitted in said annular walls of said fins; said annular wall being provided with at least one axial slot having a front end at a certain distance from a distal end of said annular wall, said axial slot extending to said fin to form an aperture in said fin; and a bar inserted in said apertures in said fins, said bar being made of low melting material so as to join said fins to said heat-conductive rod after being melted and then hardened.