Power converter

A power converter comprising:

• a semiconductor module including,
• a first main terminal, a second main terminal, and a third main terminal,
• a first semiconductor element in which a drain terminal or a collector terminal is connected to the first main terminal, a gate terminal is connected to a first signal terminal, and a source terminal or an emitter terminal is connected to the third main terminal and a second signal terminal, and
• a second semiconductor element in which another drain terminal or another collector terminal is connected to the third main terminal, another gate terminal is connected to a third signal terminal, and another source terminal or another emitter terminal is connected to the second main terminal and a fourth signal terminal, the second semiconductor element being connected in series to the first semiconductor element;
• and
• a multilayer substrate including
• a first wire connected to the first signal terminal,
• a second wire connected to the second signal terminal,
• a third wire connected to the third signal terminal,
• a fourth wire connected to the fourth signal terminal,
• a first external connection terminal to which the first wire and the second wire are connected, and
• a second external connection terminal to which the third wire and the fourth wire are connected,
• the first wire and the third wire being formed on a first layer with an insulating region interposed therebetween,
• the second wire and the fourth wire being formed on a second layer with an insulating region interposed therebetween.