Patent ID: 8359745

Claim:
A method for manufacturing a heat sink ( 1 ) comprising the steps of: providing a heat-conducting base ( 10 ) with a plurality of open troughs ( 11 ); providing a plurality of heat pipes ( 20 ), each having a heat-absorbing section ( 21 ) and a heat-releasing section ( 22 ) extending from the heat-absorbing section ( 21 ); the heat-absorbing section ( 21 ) being accommodated in one of the open troughs ( 11 ) to have the heat pipe ( 20 ) engaged with the heat-conducting base ( 10 ); providing a plurality of heat-dissipating fins ( 30 ), each of the heat-dissipating fins ( 30 ) having a lower plate ( 31 ) and an upper plate ( 32 ) extending from the lower plate ( 31 ), the upper plate ( 32 ) being folded to form an overlapping portion attached on the lower plate ( 31 ); forming a through-hole ( 33 ) in the lower plate ( 31 ) and the upper plate ( 32 ) at the overlapping portion; and penetrating the through-holes ( 33 ) of the heat-dissipating fins ( 30 ) by the heat-releasing section ( 22 ) of the heat pipe ( 20 ).