Patent ID: 8148810

Claim:
A semiconductor device comprising a multi-layer substrate having a first surface and a second surface opposing the first surface, the semiconductor device further comprising: a semiconductor chip flip-chip mounted on the first surface; a plurality of connection terminals disposed on the first surface, the plurality of connection terminals comprising connection terminals at a central area of the first surface connected to the semiconductor chip and other connection terminals at a peripheral area of the first surface located around the semiconductor chip and being capable of stacking a semiconductor device on the substrate, wherein the other connection terminals at the peripheral area include first and second connection terminals; a first wiring disposed on an inner layer of the substrate; first and second external electrodes on the second surface of the substrate; a first via connecting with the first connection terminal and the first wiring in the substrate; and a second via connecting with the second connection terminal and the first wiring in the substrate; wherein a connection of the first via, the first wiring, and the second via forms a single route electrically between the first connection terminal and the second connection terminal within the inner layer and the first surface, and the first connection terminal and the second connection terminal are electrically connected to the first and second external electrodes, respectively.