Electric Circuit Device, Electric Circuit Module, and Power Converter

A power convertor comprising:

• a first semiconductor chip constituting an upper arm;
• a second semiconductor chip constituting a lower arm;
• a capacitor device supplying DC power to the first semiconductor chip and the second semiconductor chip;
• a P-electrode comprising a first lead wire connected to the first semiconductor chip and a first lead terminal connected to a positive-polarity capacitor terminal of the capacitor device;
• a N-electrode comprising a second lead wire connected to the second semiconductor chip and a second lead terminal connected to a negative-polarity capacitor terminal of the capacitor device;
• and
• a M-electrode connecting the first semiconductor chip with the second semiconductor chip;
• wherein the first semiconductor chip, the second semiconductor chip, the capacitor device, the P-electrode, the N-electrode, and the M-electrode constitute a closed circuit,
• the first lead terminal and the second lead terminal are laminated and disposed with a connection member sandwiched between the first lead terminal and the second lead terminal, and
• the P-electrode, the first semiconductor chip, the M-electrode, the second semiconductor chip, and the N-electrode are laminated and disposed so that adjacent currents flow through the first lead wire, the M-electrode, and the second lead wire respectively in opposite directions to each other if a closed current flows through the closed circuit.