Patent ID: 7796388

Claim:
A power electronics module operable in conjunction with a cooling system, the power electronics module comprising: a substrate with a cross-section which forms a polygon, the substrate having, a first end portion disposed at a first end of the substrate, the first end portion operable to attach and seal to a coolant input header of the cooling system; a second end portion disposed at a second end of the substrate which is opposite the first end, the second end portion operable to attach and seal to a coolant output header of the cooling system; an outer peripheral surface extending between the first and second end portions, the outer peripheral surface comprising a plurality of planar facets that each coincide with a corresponding side of the polygon; a substrate interior enclosed by the outer peripheral surface and the first and second end portions; and one or more coolant flow channels passing through the substrate interior for carrying liquid coolant from the cooling system, wherein one or more of the coolant flow channels have an inlet opening at the first end portion of the substrate for receiving the liquid coolant from the cooling system and an outlet opening at the second end portion of the substrate for returning the liquid coolant to the cooling system; a metal layer disposed directly on at least two adjacent planar facets of the plurality of planar facets; and one or more power electronic devices attached to the metal layer on each planar facet of the at least two planar facets.