Patent ID: 7652886

Claim:
A heat sink assembly for dissipating heat generated by an electronic component mounted on a printed circuit board, comprising: a heat sink mounted on the electronic component; a pair of fastener assemblies securing the heat sink to the printed circuit board, each of the pair of fastener assemblies comprising: a post defining a threaded hole therein, the post extending through the heat sink and the printed circuit board; a screw being threadedly engaged in the threaded hole of the post; a coil spring being resiliently sandwiched between the screw and the heat sink; and a latch pivotably engaging with the post, wherein when the screw moves towards the printed circuit board, the latch is driven by the screw to rotate for pressing the printed circuit board towards the heat sink; wherein a cutout is defined in a lower portion of the post at a lateral side of the post and communicates with an inner space of the lower portion of the post, which is just below and communicates with the threaded hole; and wherein the cutout comprises a first slot, a pair of second slots extending downwardly from two ends of the first slot, and a third slot extending downwardly from the first slot between the pair of second slots.