Patent ID: 8207021

Claim:
A method for packaging a microelectronic assembly for processing an input signal comprising the steps of: supporting a flip chip semiconductor die on a top surface of a ball grid array package substrate; stiffening the ball grid array package substrate by fixedly attaching a stiffening member to the top surface of the ball grid array package substrate, wherein the stiffening member forms a hollow cavity surrounding the semiconductor die; sealing the hollow cavity by fixedly attaching a cover to a top surface of the stiffening member, wherein the cover comprises a thermally conductive material; spreading thermal energy being dissipated by a top surface of the flip chip semiconductor die by disposing a heat spreader between the top surface of the flip chip semiconductor die and the cover wherein the heat spreader comprises a thermally conductive material and further wherein the heat spreader forms a thermal conduit extending from the semiconductor die to the cover; and, decoupling noise from the input power supply voltages by installing a passive electrical component inside the hollow cavity and by electrically interconnecting the passive electrical component to one of the semiconductor die and the ball grid array package substrate.