Patent ID: 7763964

Claim:
A semiconductor device, comprising: a circuit board which is provided with a first main surface having first connection pads, and a second main surface, located on an opposite side of the first main surface, having second connection pads; a first semiconductor element having a first circuit forming surface and first electrode pads disposed on the first circuit forming surface, the first semiconductor element being mounted on the first main surface of the circuit board to face the first circuit forming surface toward the first main surface of the circuit board; a second semiconductor element having a second circuit forming surface and second electrode pads disposed on the second circuit forming surface, the second semiconductor element being mounted on the second main surface of the circuit board to face the second circuit forming surface toward the second main surface of the circuit board; first metal wires electrically connecting the first connection pads of the circuit board and the second electrode pads of the second semiconductor element; second metal wires electrically connecting the second connection pads of the circuit board and the first electrode pads of the first semiconductor element; and a sealing portion which seals the first and second semiconductor elements together with the first and second metal wire.