| abstract |
Rigid or flexible circuits of electrically conductor tracks can be produced on flexible or rigid, non-conductive support materials by n a) coating the surfaces of the support materials including existing drill holes with a primer and a conductive polymer, preferably poly-3,4-ethylendioxythiophene, which may contain binders, n b) applying an electroplating resist in the form of the negative image of the conductor tracks, n 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, n d) removing the electroplating resist and n e) removing the conductive polymer, which had been below the electroplating resist, or converting it to a non-conductive form, wherein the conductor tracks are electrically interconnected during the metallizing step by the layer of conductive polymer, thereby avoiding the need to individually contact each conductor track. |