Patent ID: 6537857
Filing Date: 2003-03-25
Classification: H01L

Abstract:
A method for packaging an Integrated Circuit die in a cavity provided in a heatsink, comprising:providing an Integrated Circuit die having a ground point, the Integrated Circuit die being a flip chip device; providing a substrate comprising: (i) three layers; and (ii) an opening there-through for establishment of a ground connection between the Integrated Circuit die and a heatsink; providing a heatsink, the heat sink having a cavity having a bottom surface and sidewalls; providing a first adhesive layer over the bottom surface of the cavity for attaching the IC die to the heatsink; attaching the IC die to the heatsink by positioning the IC die over the first adhesive layer; providing a plurality of wire bond connections between the IC die and the substrate; providing a conductive material through the opening provided through the substrate; providing a wire bond connection between the ground point of said IC die and the conductive material provided through the opening through the substrate; providing an encapsulation layer within and adjacent to the cavity for attaching the IC die to the heatsink; and providing and attaching a plurality of solder balls.