HEAT DISSIPATION FIN AND HEAT SINK, MODULE MOUNTING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a heat dissipation fin capable of reducing the fluid resistance and enhancing the heat-transfer performance, and a heat sink and a module mounting the same.SOLUTION: A heat sink 40 is constituted of a smooth plate 10 that is a base composed of a metal, and a heat dissipation fin 23 mounted on the smooth plate 10 via metallic bond. The heat dissipation fin 23 has a structure of a porous metal 22 consisting of fine wires 20 composed of a metal and cavities 21. The fine wire 20 has a front surface part of curved surface shape against the flow direction of the fluid 30 which a fluid 30 strikes, and a rear surface part elongated so that the flow of the fluid 30 does not exfoliate easily.SELECTED DRAWING: Figure 1