A light reception/emission device built-in module with optical and electrical
wiring
combined therein includes: an optical waveguide layer including a core portion
and a cladding portion; first and second wiring patterns formed on a main surface
of the optical waveguide layer; a light reception device disposed inside the optical
waveguide layer, the light reception device being optically connected with the
core portion of the optical waveguide layer and being electrically connected with
the first wiring pattern; and a light emission device disposed inside the optical
waveguide layer, the light emission device being optically connected with the core
portion of the optical waveguide layer and being electrically connected with the
second wiring pattern. With this configuration, optical coupling between the optical
waveguide and the light reception/emission device can be conducted precisely.
