An opto-electronic board including a printed wiring board with an optical
waveguide, a metallic area, and a hole, wherein an abutting face of the
optical waveguide and an abutting face of the metallic area form a part
of the side face of the hole. The opto-electronic board further comprises
an opto-electronic circuit with a bonding pad, wherein the
opto-electronic circuit is arranged in the hole and soldered with its
bonding pad to the abutting face of the metallic area.