Patent ID: 6249436
Filing Date: 2001-06-19
Classification: H01L,Y10T

Abstract:
A structure comprising:a heat sink comprising:a base having a plurality of aperture;a plurality of torque bars extending from said base, each torque bar of said plurality of torque bars being adjacent an aperture of said plurality of apertures; anda plurality of locking features, wherein each torque bar of said plurality of torque bars has a locking feature of said plurality of locking features;a circuit board comprising a plurality of apertures;a package comprising an electronic component; wherein said package is located between said heat sink and said circuit board and attached to a die attach area of said circuit board; anda retainer having a plurality of spring elements and a plurality of ends, each spring element of said plurality of spring elements passing through an aperture of said plurality of apertures in said circuit board and also through an aperture of said plurality of apertures in said base of said heat sink, wherein each end of said plurality of ends is secured in a locking feature of said plurality of locking features, wherein tension in said retainer imparts torque on said heat sink which causes said heat sink to impart a first force on said package, said first force being countered by a second force applied by a base section of said retainer on said circuit board directly opposite said die attach area.