Patent ID: 9590622
Date: 2017-03-07
CPC Classifications: H01L,H03K

Claim:
1. A semiconductor module comprising: a drain board having a front surface and a back surface that receives an electric current supplied from outside; a laminated substrate including an insulating plate and a circuit board and being disposed on the front surface of the drain board, the insulating plate having a front surface and a back surface joined to the drain board, the circuit board being disposed on the front surface of the insulating plate; a first semiconductor chip including a switching element made of a wide-bandgap semiconductor and having a gate electrode and a source electrode on a front surface of the first semiconductor chip and a drain electrode on a back surface of the first semiconductor chip and being disposed on the front surface of the drain board, the drain electrode being electrically connected to the drain board; a second semiconductor chip including a diode element and having an anode electrode on a front surface of the second semiconductor chip and a cathode electrode on a back surface of the second semiconductor chip and being disposed between the first semiconductor chip and the laminated substrate on the front surface of the drain board, the cathode electrode being electrically connected to the drain board; a connecting member configured to electrically connect the source electrode of the first semiconductor chip and the circuit board and to electrically connect the anode electrode of the second semiconductor chip and the circuit board; and a source terminal disposed on the circuit board and configured to output the electric current, the electric current being controlled by the first semiconductor chip, to the outside.