Patent ID: 7312525

Claim:
A circuit assembly comprising: a heat-conducting base plate; an insulating base; a die having an integrated circuit therein, said die being in thermal contact with said heat-conducting base plate, said heat-conducting base plate being disposed between said die and said insulating base; a heat-spreading cover overlying said die and connected to said heat-conducting base plate, said heat-spreading cover defining a wall of a cavity over said die, said cavity surrounding the portions of said die that are not in thermal contact with said heat-conducting base plate, wherein said cavity is filled with a molding compound, said molding compound and said heat-conducting base plate encapsulating said die, and wherein said heat-spreading cover is connected to said heat conducting base plate in a region devoid of said molding compound; wherein said insulating base further comprises a plurality of heat-conducting channels, said heat-conducting channels being in thermal contact with said heat-conducting base plate; and wherein said insulating base further comprises signal conducting channels for providing electrical connections to said die said heat-conducting base plate having an opening therein for making said connections between said die and said signal conducting channels.