Patent ID: 8890310

Claim:
A power module package comprising: a power circuit element having one or more power semiconductor devices; a control circuit element electrically connected with the power circuit element, for controlling the power semiconductor devices within the power circuit element; a lead frame having external connection terminal leads with inner ends and outer ends and having a first surface to which the power circuit element and the control circuit element are attached and having a second surface opposite the first surface; a metal/metal oxide substrate having a heat sink of a plate of metal and an electrical insulation layer formed at least on an upper surface of the metal plate and comprising an oxide of the metal, a thermally conductive adhesive for attaching the electrical insulation layer to part or all of a region of the second surface of said lead frame that corresponds to a region on the first surface of said lead frame where the power circuit element is attached; and an encapsulating resin for enclosing the power circuit element, the control circuit element, the lead frame, and the metal/metal oxide substrate, and outer end of external connection terminal leads of the lead frame.