Patent ID: 8135251

Claim:
An opto-electric hybrid board comprising: an optical waveguide portion; an electric circuit portion; and an optical element mounted on the electric circuit portion, said optical waveguide portion including a translucent under cladding layer, a linear core for an optical path formed on a surface of the under cladding layer, a first alignment mark formed on the surface of the under cladding layer and positioned relative to an end portion of the core, and an over cladding layer formed on the surface of the under cladding layer and for covering said core and the first alignment mark, said electric circuit portion including a second alignment mark for positioning of the optical element and formed on a surface of said electric circuit portion on which the optical element is mounted, said second alignment mark having a surface covered with a resin layer, except for an uncovered portion for identification, wherein the uncovered portion is provided by using said first alignment mark as a reference.