| 摘要 |
In a semiconductor device, a ceramic package having a first surface and a second surface and having a recession section provided on the first surface side is provided. The recession section has a first opening provided at a center portion of the recession section and penetrating to the second surface, and pads provided in a peripheral portion of the second opening on the first surface side of the recession section. A semiconductor element mounted on a mount substrate is inserted in the first opening from the second surface side of the ceramic package. The semiconductor element is smaller than the mount substrate and has pads in a peripheral portion of the semiconductor element. The pads on the recession section and the pads on the semiconductor element are connected by electrically conductive wires.
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