A semiconductor module includes a plurality of semiconductor chips that include gate electrodes on front surfaces, a gate terminal that receives a control signal from outside, and a print substrate. The print substrate includes a gate wiring layer that separates the control signal that is input into the gate terminal and passes the control signal to the gate electrodes of the semiconductor chips, and a cross-sectional area of the gate wiring layer becomes larger as the gate wiring layer gets closer to the gate terminal from the gate electrodes.