Patent ID: 6867502

Claim:
A semiconductor device in which a semiconductor chip is flip-chip-mounted over a wiring substrate through a plurality of bump electrodes formed over a main surface of the semiconductor chip, wherein a power supply circuit, an input/output circuit, and a plurality of pads are arranged in a central area of the main surface of the semiconductor chip, wherein the plurality of bump electrodes are arrayed in an area than the central area of the main surface of the semiconductor chip, the bump electrodes being electrically connected to the pads by metal wirings, wherein the plurality of bump electrodes include bump electrodes functionally connected with an input/output power supply, an input and output of a data signal, and an input of an address signal, wherein, of the plural bump electrodes, those for the input/output power supply and those for the input and output of a data signal are mainly arranged in a first area adjacent to the central area of the main surface of the semiconductor chip, wherein, of the plural bump electrodes, those for the input of an address signal are mainly arranged in a second area located outside the first area, wherein a gap between the semiconductor chip and the wiring substrate is filled with a sealing resin, and wherein lands integral with the metal wirings and to which the bump electrodes are not connected are arranged in the second area.