Patent ID: 8736048

Claim:
A multi-chip module (MCM) structure comprising more than one semiconductor chip lying in a first plane, said MCM having individual chip contact patches on said chips and a flexible heat sink having lateral compliance and extending in an unbroken second plane in said MCM and secured in a heat exchange relation to said chips through said contact patches, said MCM having a mismatch between the coefficient of thermal expansion of said heat sink and said MCM said flexible heat sink with lateral compliance minimizing or eliminating shear stress and shear strain developed in the horizontal direction at the interface between said heat sink and said chip contact patches by allowing for substantial horizontal expansion and contraction of said heat sink relative to said MCM without moving said individual chip contact patches in a horizontal direction, said structure further comprising heat transfer elements (HTE) extending from said heat sink and opposite said contact patches on said heat sink and connecting to a second flexible heat sink lying in a third plane.