Patent ID: 8837873

Claim:
An opto-electric hybrid board, comprising: an optical waveguide unit; and an electric circuit unit having an optical element mounted thereon, the electric circuit unit and the optical waveguide unit being coupled and parallel to each other, wherein the optical waveguide unit comprises: an undercladding layer; a core for an optical path, the core being formed on a surface of the undercladding layer; an overcladding layer which covers the core; and a protruding portion for locating the electric circuit unit, the protruding portion being extendingly provided at a portion of at least one of the undercladding layer and the overcladding layer; wherein the electric circuit unit comprises: an electric circuit board; the optical element mounted on the electric circuit board; a bent portion formed by bending an optical element mounting portion of the electric circuit board; and a fitting hole which is formed in the bent portion and into which the protruding portion fits; wherein the protruding portion of the optical waveguide unit is located and formed at a predetermined location with respect to a light transmitting surface of the core; wherein the optical element of the electric circuit unit is located and mounted at a predetermined location of the bent portion; wherein the fitting hole formed in the bent portion is located and formed at a predetermined location with respect to the optical element; and wherein the optical waveguide unit and the electric circuit unit are coupled to each other in a state in which the protruding portion of the optical waveguide unit fits into the fitting hole of the electric circuit unit, such that the optical waveguide unit and the electric circuit unit are in an overlapping relationship, in a direction perpendicular to a longitudinal direction of the core of the optical waveguide unit.