Patent ID: 7504716
Filing Date: 2009-03-17
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor chip having a length and a width, and a plurality of bond pads, affixed to a first metallic cuboid containing copper via a adhesive layer and a separate first layer containing silver, the cuboid having first and second surfaces of length and width approximately equal to the chip's length and width, the cuboid further having sides of a height; a plurality of second metallic cuboids containing copper, the second cuboids having first and second surfaces of length and width suitable for wire bond attachment, the second cuboids further having sides of a height substantially equal to the height of the first cuboid; a layer of silver similar to the first layer affixed on the first surfaces of the plurality of second cuboids; the chip bond pads wire bonded to the silver layer on the first surfaces of the second cuboids, respectively; the second surfaces of the first and second cuboids aligned in a plane; and encapsulation compound adhering to and embedding the chip, the wire bonds, and the sides of all cuboids so that the compound forms a first surface above the embedded wires and a second surface aligned with the plane of the second cuboid surfaces.