HEAT SINK

摘要

The objective of the present invention is to provide a heat sink with which the formation of boundary layers at the surfaces of heat dissipating fins is suppressed, and which has an excellent heat dissipation efficiency. This heat sink includes: a base plate in the shape of a flat plate, which is thermally coupled to a heat generating body; first heat dissipating fins which are thermally coupled to the base plate; and second heat dissipating fins which are adjacent to a side end portion of the first heat dissipating fins and are thermally coupled to the base plate, wherein the surfaces of the first heat dissipating fins are not parallel to the surfaces of the second heat dissipating fins.