Patent ID: 6453987
Filing Date: 2002-09-24
Classification: F28F,H01L

Abstract:
A heat dissipating device comprising:a base plate adapted to contact and to be in thermal communication with a heat-generating source; and a unitary heat-dissipating fin strip unit mounted fixedly on and in thermal communication with said base plate, said fin strip unit including a row of straight strip portions arranged along a first direction and disposed in a plane that is parallel to said base plate, each adjacent pair of said straight strip portions being spaced apart from each other so as to define a heat-dissipating space therebetween, and a plurality of bridging units disposed respectively within said heat-dissipating spaces, each of said bridging units including a plurality of pressed and staggered first and second U-shaped strip portions, each of which has two ends that are connected respectively to corresponding ones of said straight strip portions, said first U-shaped strip portions of each of said bridging units being disposed on one side of the corresponding ones of said straight strip portions and being arranged in a row along a second direction, which is transverse to the first direction and parallel to said base plate, said second U-shaped strip portions of each of said bridging units being disposed on the opposite side of the corresponding ones of said straight strip portions and being arranged in a row along the second direction, and each of said second U-shaped strip portions of said fin strip unit having a bent portion that is disposed fixedly on and that is in thermal communication with said base plate.