Heat sink structure
A heat sink structure, having a heat sink and a thermal conductive block. The heat sink has a receiving slot recessed from a central portion of a bottom thereof. The thermal conductive block has a plurality of uneven surfaces thereon and a plurality of conical through holes therein. The thermal conductive block is pressed into the receiving slot while the heat sink is softened by heating, and the heat sink has a thermal expansion coefficient larger than the thermal conductive block, such that a wall of the receiving slot is partly extruded into or through the conical through holes, and the wall outside of the conical through holes is partly contracted into the conical holes in a cooling process after the thermal conductive block is pressed into the receiving slot. The conical through holes also provides the function of expelling gas, such that the thermal conductive block is firmly attached to the heat sink, and the heat dissipation effect is further enhanced.
H H
H01L H01L
inventional additional
Kuei-Yin Chia-Min Po-Chou Kuan-Da
Kuo Chou Shih Pan