| 摘要 |
According to one embodiment, a method is disclosed for manufacturing semiconductor device. The method can include preparing a semiconductor layer having a drain layer, and a drift region provided from a surface to an inside of the drain layer, the drift region having a first trench extending from a surface to an inside of the drift region. The method can include implanting impurities into the drift region through an opening of the first trench to form a source region for an exposed face of the drift region exposed on an inside wall of the first trench, and implanting impurities into the drift region through the opening of the first trench to form a base region between the source region and the drift region. The method can include forming gate electrode. |
