| 摘要 |
According to one embodiment, a semiconductor device includes a first conductivity type base layer, a second conductivity type base layer, a gate insulating film, a first conductivity type source layer, a gate electrode, and a main electrode. The gate electrode is provided inside of the gate insulating film in the trench. The main electrode is provided on the surface of the second conductivity type base layer and on a surface of the first conductivity type source layer. The main electrode is provided at a position deeper than the gate electrode and the second conductivity type base layer in the trench. The main electrode is electrically connected to the second conductivity type base layer and the first conductivity type source layer. |
