Patent ID: 7388746

Claim:
A heatsink assembly comprising: a heat source mounted on a substrate; a heatsink arranged in contact with the heat source mounted on the substrate to dissipate heat generated from the heat source; and a pressing member arranged to couple to the substrate so as to secure the heatsink onto the substrate, wherein the pressing member comprises: a pressing cover for pressing the heatsink so that the heatsink can be secured in contact with the heat source; and tension parts which extend from the pressing cover and exert a pressing force onto the pressing cover, when being coupled to the substrate, and wherein the heatsink comprises: a base body having a flat bottom surface and an inner space; an inlet which is disposed on a first side wall of the base body and through which a fluid flows into the base body; an outlet which is disposed on a second side wall of the base body and through which the fluid inside the base body flows out; and a plurality of guide members which are formed in the inner space of the base body to guide the fluid introduced through the inlet via a plurality of fluid channels toward the outlet.