Power converter

A power converter comprising:

• a plurality of power-conversion semiconductor elements including a plurality of electrodes;
• a plurality of electrode conductors electrically connected with the plurality of electrodes of the plurality of power-conversion semiconductor elements, having columnar shapes extending upward, and having substantially flat upper end surfaces;
• a radiator member arranged at back surfaces of the power-conversion semiconductor elements;
• and
• a sealant made of resin and covering the power-conversion semiconductor elements and side surfaces of the electrode conductors,
• wherein the sealant allows the substantially flat upper end surfaces of the plurality of electrode conductors having the columnar shapes to be exposed at an upper surface of the sealant and provides electrical connection with an external device at the upper end surfaces of the exposed electrode conductors, and
• wherein heat generated by the power-conversion semiconductor elements can be radiated from both the substantially flat upper end surfaces of the plurality of electrode conductors arranged at principal surfaces of the power-conversion semiconductor elements and the radiator member arranged at the back surfaces of the power-conversion semiconductor elements.