Patent ID: 7186590

Claim:
A method for dissipating heat from an electronic package having one or more components, comprising: mounting each of said one or more components to a top surface of a substrate and electrically connecting each of said one or more components to said substrate, said substrate having a first coefficient of thermal expansion; attaching a bottom surface of a separately formed peripheral lid support to a periphery of a top surface of said substrate, said peripheral lid support having sidewalls defining a cavity open at a top surface and said bottom surface of said peripheral lid support; attaching said top surface of said peripheral lid support to only a bottom surface of a peripheral sidewall of a lid, said peripheral sidewall integrally formed only with and around a periphery of a top wall of said lid, said lid including a separately formed bottom wall positioned inside and sealed to inside surfaces of said peripheral sidewall, said top wall, peripheral sidewall and bottom wall of said lid defining a vapor chamber, said vapor chamber containing a heat transfer fluid, said top wall and said peripheral sidewall of said lid having a second coefficient of thermal expansion and said bottom wall of said lid having a third coefficient of thermal expansion, said first coefficient of expansion about equal to said second coefficient of thermal expansion; and placing a solid thermal transfer medium in direct physical contact with a back surface of each of said one or more components and in direct physical contact with an outer surface of said bottom wall of said lid.