Multi-shot injection molding process for making electrical connectors and three-dimensional circuits

The invention relates to processes used in the manufacture of generally electrically nonconductive articles which include an electrically conductive surface layer, such as electrical connectors having a conductor pattern defined on the connector's relatively resilient, electrically nonconductive substrate. A method of making an article, such as an electrical connector includes an injection-molded plastic substrate and a pattern of injection-molded metal conductors supported on and mechanically interlocked with the substrate, wherein one of the substrate and the conductors is over-molded onto the other of the substrate and the conductors.