Patent attributes
A heat sink assembly includes a heat transfer block defining alternatively arranged mounting grooves and spacer ribs, and radiation fins respectively formed by bending one respective thin metal sheet member into a substantially inverted U-shaped profile having two radiation fin walls that have one end connected to each other and an opposite end terminating in a respective outwardly upwardly extending folded portion, each radiation fin wall with the respective outwardly upwardly extending folded portion being inserted into one respective mounting groove of the heat transfer block and fixedly secured thereto through a stamping operation to deform the folded portions of the radiation fin walls of the radiation fins and spacer ribs of the heat transfer block synchronously.
