According to an embodiment, an electrode array for a transmodiolar implant is disclosed. The implant includes a substrate, a conductive metal located at a plurality of discrete portions on the substrate and a single layer of insulation material over the conductive metal and the substrate. The single layer of insulation material includes a plurality of apertures that expose the conductive metal, the exposed conductive metal forming a plurality of electrodes, wherein stiffness of the electrode array is adapted to allow insertion of the electrode array into a modiolus of a subject.