Patent ID: 7446410

Claim:
A circuit module comprising: a rigid substrate having two opposing lateral sides, an edge and a substrate extension; flex circuit having a first side which has plural contacts adapted for connection to a circuit board socket and first-flex-side first and second ranks of plural memory ICs between which are disposed the plural contacts, and the flex circuit having a second side which has second-flex-side first and second ranks of plural memory ICs, the flex circuit being disposed about the edge of the rigid substrate to dispose the second-flex-side first and second ranks of plural memory lCs adjacent to the rigid substrate; a first thermal spreader adjacent to and thermally connected to the first-flex-side first rank of plural memory ICs and a second thermal spreader adjacent to and thermally connected to the first-flex-side second rank of plural memory lCs, wherein the first and second thermal spreaders each exhibiting a thermal path extension which cooperates with a substrate extension to provide a thermal conduction path from the second-flex-side first and second ranks of plural ICs to the first and second thermal spreaders, respectively.