Patent ID: 8629566

Claim:
An MCM device comprising a flat thin insulation substrate having parallel top and bottom surfaces; a plurality of laterally displaced conductive vias extending between said top and bottom surfaces; a flip chip semiconductor die having top and bottom surfaces and having at least first and second electrodes on said top and bottom surfaces; said first and second electrodes having contacts on said die bottom surface connected to respective ones of said plurality of vias; a second flip chip semiconductor die having top and bottom surfaces and having at least first and second electrodes on said top and bottom surfaces; said first and second electrodes of said second die connected to respective ones of said plurality of vias; and a moldable conductive electrode extending over the top of said substrate and over the upper most surfaces of said die and in contact therewith, and further connected to a respective one of said vias; wherein said moldable conductive electrode has an upper surface that contains parallel grooves which define fins in said upper surface of said conductive electrode.