Semiconductor device

A semiconductor device comprising:

• a first thermal radiation member made of metal and including a first surface and a second surface that is on an opposite side of the first surface;
• a second thermal radiation member made of metal and including a first surface and a second surface that is on an opposite side of the first surface;
• a first semiconductor chip electrically connected to the first surface of the first thermal radiation member and to the first surface of the second thermal radiation member;
• a second semiconductor chip spaced from the first semiconductor chip and electrically connected to the first surface of the first thermal radiation member and to the first surface of the second thermal radiation member;
• a sealing resin sealing the first semiconductor chip, the second semiconductor chip, the first surface of the first thermal radiation member, and the first surface of the second thermal radiation member between the first semiconductor chip and the second semiconductor chip, and exposing the second surfaces of the first thermal radiation member and the second thermal radiation member;
• first thermal diffusion members made of carbon-based material and each respectively connected to the second surface of the first thermal radiation member and the second thermal radiation member at a position opposed to the first semiconductor chip;
• second thermal diffusion members made of carbon-based material and each respectively connected to the second surface of the first thermal radiation member and the second thermal radiation member at a position opposed to the second semiconductor chip;
• and
• coolers configured to use a coolant to cool the first thermal diffusion members and the second thermal diffusion members, and each being disposed to face the second surfaces of the first thermal radiation member and the second thermal radiation member, respectively,
• wherein the first thermal diffusion members and the second thermal diffusion members, each of which are spaced from each other respectively on the second surfaces of the first thermal radiation member and the second thermal radiation member, and are disposed such that a space between each of the first thermal diffusion member and the second thermal diffusion member is positioned to oppose a space between the first semiconductor chip and the second semiconductor chip via the first thermal radiation member, the second thermal radiation member and the sealing resin.