Patent ID: 7433554

Claim:
An optical wiring substrate comprising: a substrate, having a plurality of recessed portions formed therein; optical waveguides, formed on the substrate and positioned between the plurality of recessed portions; a plurality of base members, each having an inserted portion, in turn having inclined surfaces formed thereon and being inserted into the recessed portion, and a supporting portion, supporting the inserted portion inserted into the recessed portion; photonic devices, each being mounted onto the inserted portion of the base member and positioned at an inner side of the recessed portion of the substrate; penetration electrodes, each penetrating through from a base member surface on which the photonic device is mounted to a base member surface at the opposite side; and reflecting surfaces, each formed on the inclined surface of the inserted portion, wherein the reflecting surfaces and the optical waveguides are positioned by inserting the inserted portions of the base members into the recessed portions, and wherein the inclination angle of the reflecting surface being adjusted to an angle, by which optical paths are matched between the optical waveguide and the photonic devices.