Power module package and the method of manufacturing thereof

The present invention relates to a power module package and a method of manufacturing the same. And the power module package in accordance with one embodiment of the present invention comprises a heat-radiating sheet is joined to the power device and a surface of the lead frame and the lead frame in which a control element for controlling them are electrically connected to the power element is mounted, the heat radiation the sheet is a thermally conductive inorganic filler-containing, phenyl glycidyl ether, and alkyl glycidyl provided in the bonding interface formed between the first and the second resin layer and the first and second resin layer is the mixture of ether was added and a heat spreader made of a metal. Therefore, it is possible to easily improve the heat dissipation properties of the power module package to the heat spreading effect due to the heat spreader.