Patent ID: 8120153
Filing Date: 2012-02-21
Classification: H01L

Abstract:
1. A cost-effective, ultra-compact hybrid power module packaging system consisting of: one single two terminal power semiconductor chip having a top side and a bottom side with a layer of bonding material formed on each of the top and bottom sides; a first molybdenum leadframe having a first end bonded to the top side of the power semiconductor chip as a first internal interconnect to one terminal of the one single power semiconductor chip; a second molybdenum leadframe having a first end bonded to the bottom side of the one single power semiconductor chip as a second internal interconnect to an opposite terminal of the one single power semiconductor chip with the first end of each of the first and second molybdenum leadframes overlapping to form a sandwiched structure; and a high-temperature polymer between the overlapping ends of the first and second molybdenum leadframes to encapsulate the one single power semiconductor chip bonded to the one single power semiconductor chip leaving the outer surface of the first and second molybdenum leadframes exposed for double-side cooling, the opposite ends of the first and second leadframes extending in opposite directions from the one single semiconductor chip exposed as external leads to provide a module package with low parasitic resistance and high current-carrying capacity, wherein the high temperature polymer for encapsulating is selected from the group consisting of polyetherketone (PEK), PEK with glass, PEK with carbon filler, liquid crystal polymer (LCP), silicon/polyimide mixtures and thermoset microwave materials (TMM).