Patent ID: 7564687

Claim:
A heat dissipation device adapted for dissipating heat generated by a chipset mounted on a printed circuit board, comprising: a fixing base having a pair of side plates formed on a first set of two opposite sides thereof and at least a pressing beam formed across a second set of two opposite sides thereof, each side plate comprising at least a resilient barb extending inwards from an end portion thereof; and a heat sink attached with the chipset, being positioned between the fixing base and the chipset, the heat sink comprising a base having two opposite sides abutting a first set of two opposite sides of the chipset to avoid movement of the heat sink along a direction perpendicular to the two opposite sides of the base; wherein the resilient barbs of the fixing base tightly clasp a second set of two opposite sides of the chipset and the at least a pressing beam presses the heat sink toward the chipset; wherein the heat sink comprises two opposite flanges formed on the two opposite sides of the base of the heat sink; and wherein the two opposite flanges of the heat sink abut the first set of two opposite sides of the chipset, and the resilient barbs of the fixing base abut the second set of two opposite sides of the chipset.