Patent ID: 8552549

Claim:
A semiconductor device comprising a multi-layer substrate, which includes a first layer and a second layer physically connected to the first layer, the semiconductor device having a first surface on the first layer and a second surface on the second layer and 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 multi-layer substrate, wherein the other connection terminals at the peripheral area include a first connection terminal; first and second external electrodes on the second surface of the multi-layer substrate; a first via portion connecting the first connection terminal to the first external electrode; and a second via portion connecting the first connection terminal to the second external electrode, wherein a connection of the first via portion, the first connection terminal, and the second via portion forms a single route electrically between the first external electrode and the second external electrode.