Patent ID: 8131375

Claim:
A visual prosthesis adapted for subretinal stimulation, comprising: a hermetic package including electrode drivers suitable to be implanted external to a sclera; and a flexible circuit attached to said hermetic package, the flexible circuit including: a continuous polymer base layer including a cable region, an interconnection region and an electrode region, the electrode region pre-curved prior to implantation; electrodes located in the electrode region, bond pads located in the interconnection region, and metal traces electrically connecting the electrodes in the electrode region with the bond pads in the interconnection region, the electrodes and the metal traces being on a concave side of said continuous polymer base layer, said electrodes in the electrode region forming an electrode array suitable to stimulate neural tissue, said bond pads in the interconnection region of the continuous polymer base layer adapted to electrically connect the flexible circuit to the hermetic package; and a continuous polymer top layer deposited on the cable region, the interconnection region and the electrode region of said concave side of said continuous polymer base layer, the continuous polymer top layer defining openings for said electrodes forming said flexible circuit electrode array; wherein, when implanted, the cable region of the continuous polymer base layer is adapted to pass through a vitreous body and a pars plana.