ELECTRIC-OPTICAL CIRCUIT CARRIER AND METHOD FOR THE PRODUCTION THEREOF

摘要

The electric-optical circuit carrier provided in the form of a printed circuit board comprises at least one light-conductive layer (30) between light impermeable layers (12;21), whereby optical components (5) are arranged on the top side near to electrical components (4). Conductive paths (31) are defined in the light-conductive layer by light impermeable defining layers (34) which are formed by absorbing light having a defined wave length in the light conductive layer (30). The optical connection between optical elements (5) arranged on the surface and a light conductive path (31) occurs via the light conductive channels (32) drilled in a perpendicular manner with respect to the plane of the strip conductors. Slanting reflecting surfaces are arranged on the points of intersection between the light conductive channels (32) and the light conductive paths (31). According to the invention, said slanting reflecting surfaces are produced by point by point radiation of the light-conductive material at a wave length which is absorbed by said material. The slant is produced by a corresponding modification of the focusing of the laser light.