Patent ID: 8530265
Filing Date: 2013-09-10
Classification: A61N,H01L

Abstract:
1. A fabrication method for a flexible device having an array of pixel units for retina prosthesis, comprising: forming layered structures including the array of pixel units over a substrate, each pixel unit comprising a processing circuitry, a micro electrode and a photo sensor; forming a first set of biocompatible layers over the layered structures; thinning down the substrate to a controlled thickness of the substrate to allow bending of the substrate to about a curvature of a retina; and forming a second set of biocompatible layers over the thinned substrate, the second set of biocompatible layers in contact with the first set of biocompatible layers around the structure to form a sealing biocompatible layers wrapping the device to allow the device in long-term contact with retina tissues, wherein top surfaces of the micro electrodes of the pixel units are exposed through the biocompatible layers, wherein the forming the first set of biocompatible layers comprises