Patent ID: 8401347

Claim:
A photoelectric composite wiring module, comprising: a first circuit substrate having an optical waveguide in which an optical signal propagates; an optical device mounted on a surface of the first circuit substrate and optically coupled to the optical waveguide; an insulating film formed on the first circuit substrate and the optical device; a wiring pad mounted on the insulating film; an electrical wiring connecting the optical device with the wiring pad; and a first semiconductor device mounted on and electrically connected with the wiring pad; wherein the optical device is located on the surface of the first circuit substrate, the surface of the first circuit substrate facing a side where the first semiconductor device is provided, the surface of the first circuit substrate being within a plane which projects the first semiconductor device on the surface of the first circuit substrate, wherein the first substrate has both a territory in which the insulating film covers the optical device and a territory not covered by the insulating film, and an optical connector for optically coupling the optical waveguide and an external optical element provided in the territory not covered by the insulating film, wherein the optical device and the wiring pad are connected with each other by means of a via formed in the insulating film, wherein the optical device has an electrode that is located at the side of the first semiconductor device and connected with the via, and wherein the wiring pad is located directly above the electrode of the optical device and wherein the electrode, the via, the wiring pad and a bump are all vertically aligned in a straight line.