PROCESS FOR PRODUCING RIGID AND FLEXIBLE CIRCUITS

Rigid or flexible circuits of electrically interconnected conductor tracks can b e produced on flexible or rigid, non-conductive support materials by a) coating the surfaces of the support materials including existing drill holes with a primer and a conductive polymer which may contain binders, b) applying an electroplating resist in the form of the negative image of the conductor tracks, c) metallizing by electroplating the surface kept free by the electroplating resist, including existing drill holes, in the form of the positive image of the conductor tracks, d) removing the electroplating resist and e) removing the conductive polymer, which had been below the electroplating resist, or converting it to a non-conductive form.