| 摘要 |
A semiconductor device according to the embodiment is provided with an inner lead. The inner lead includes a first surface and a second surface opposite thereto. A semiconductor chip is mounted on the first surface. A first resin portion seals the semiconductor chip on the first surface. A second resin portion is provided on the second surface. An outer lead is connected to the inner lead, and configured to project outside from the first and second resin portions. A width of the second resin portion in a first direction where the outer lead projects is smaller than that of the first resin portion in the first direction.
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