Patent ID: 7355272

Claim:
A semiconductor device comprising: a wiring board having a main surface and a back surface opposite to the main surface, the main surface having a substantially rectangular planar shape including a pair of opposite first sides and a pair of opposite second sides, the main surface having a plurality of flip-chip electrodes disposed along at least one of the pair of first sides, a plurality of wire-connection electrodes disposed along at least one of the pair of second sides, and a plurality of common wiring patterns electrically connecting the plurality of flip-chip electrodes and the plurality of wire-connection electrodes, respectively; a first semiconductor chip having a first chip main surface and a first chip back surface opposite to the first chip main surface, the first chip main surface having a substantially rectangular planar shape including a pair of opposite first chip sides and a pair of opposite second chip sides, the first chip main surface having a plurality of first pads disposed along at least one of the pair of first chip sides and not disposed along the pair of second chip sides, wherein the first semiconductor chip is mounted over the main surface of the wiring board such that the first chip main surface faces the main surface of the wiring board, and the first chip sides are parallel with the first sides of the wiring board; a second semiconductor chip having a second chip main surface and a second chip back surface opposite to the second chip main surface, the second chip main surface having a substantially rectangular planar shape including a pair of opposite third chip sides and a pair of opposite fourth chip sides, the second chip main surface having a plurality of second pads disposed along at least one of the pair of third chip sides and not disposed along the pair of fourth chip sides, wherein the second semiconductor chip is the same type as the first semiconductor chip, wherein the second semiconductor chip is mounted over the first semiconductor chip such that the second chip back surface faces the first chip back surface of the first semiconductor chip, and the third chip sides are parallel to the second sides of the wiring board; a plurality of bumps, each bump electrically connecting one of the plurality of first pads of the first semiconductor chip and a respective one of the plurality of flip-chip electrodes of the wiring board; a plurality of wires, each wire electrically connecting one of the plurality of second pads of the second semiconductor chip and a respective one of the plurality of wire-connection electrodes of the wiring board; a sealing body sealing the first semiconductor chip, the second semiconductor chip and the plurality of wires; and a plurality of external terminals disposed on the back surface of the wiring board.