Patent ID: 7911792

Claim:
A power module package comprising: a fully enclosed package comprising sidewalls a top portion having a rim extending beyond said sidewalls, said rim adapted to attach said power module package to a coolant containing structure, said package sealed with respect to a coolant contacting at least said sidewalls and a bottom of said package; wherein at least one of said sidewalls comprises an electrically and thermally conductive substrate, said substrate comprising a metal; wherein circuit elements are mounted on said conductive substrate on a first side comprising an inner side of said enclosed package, a top side of said circuit elements not bonded to an opposing sidewall, said top side not having an overlying circuit element, said top side spaced from said opposing sidewall; a U-shaped frame attached along a periphery of each of said conductive substrates such that said conductive substrates are arranged in a face-to-face relationship; and, wherein an entire area of a second side of said conductive substrate is exposed.