Patent ID: 7400507

Claim:
A fastening structure, comprising: at least a first fastening piece, secured to a circuit board, the first fastening piece having a first fastening member; a heat spreader, contacting a thermal source to conduct the heat from the thermal source to the heat spreader, the heat spreader having a predetermined area extending over a predetermined portion of the circuit board and having a fixed portion, the fixed portion connected to a corresponding portion of a heatsink module to dissipate the heat from the heat spreader to the heatsink module, hence being able to swing vertically; and a second fastening piece, the second fastening piece deposited on the heat spreader and contacting the heat spreader, having a second fastening member and a fulcrum, the second fastening member connecting to the first fastening member, the fulcrum suppressing an upper end surface of the heat spreader, the second fastening piece having suitable elasticity for allowing the second fastening member to swing vertically and axially around the fulcrum, wherein the heat spreader is disposed with two first positioning members at a predetermined distance apart; a suppressing member having a predetermined length and straddling over the second fastening piece, with a second positioning member at each of its two ends for connecting to the corresponding first positioning members.