Patent ID: 6504712
Filing Date: 2003-01-07
Classification: H01L

Abstract:
A structure for fixing a heat sink to a CPU assembly having a CPU mount circuit board within a housing of a personal computer by a first clip provided on the heat sink and a second clip provided on the CPU assembly, the heat sink comprising a radiating base plate of metal having on one surface thereof a flat portion for receiving the heat generated by the CPU, and a plurality of radiating fins formed in a raised shape on the other surface of the radiating base plate integrally therewith by cutting,the radiating base plate of the heat sink having an internally enlarged furrow formed in the surface thereof provided with the heat receiving portion, the first clip comprising a base in the form of a strip and having a width larger than the opening width of the furrow and smaller than the bottom width of the furrow, and a leg provided on the base perpendicular thereto and having an engaging portion at an outer end thereof, the second clip comprising a springlike elastic portion engageable with the engaging portion of the leg end of the first clip, the base of the first clip being disposed in the furrow with the leg thereof extending from inside the furrow outward through the CPU assembly, the engaging portion of the leg end being in engagement with the elastic portion of the second clip as deformed elastically, the first clip being biased toward the CPU assembly by the elastically deformed elastic portion.