Patent ID: 9669209
Date: 2017-06-06
CPC Classifications: A61N,H05K,Y10T

Claim:
1. A method of making a flexible circuit electrode array comprising: providing a substrate; depositing a polymer base layer on the substrate; depositing a first metal layer on said polymer base layer; patterning said first metal to form first metal traces, electrodes and bond pads; depositing a polymer interlayer on said polymer base layer and said metal traces, electrodes and bond pads; depositing a second metal layer on said polymer interlayer; patterning said second metal layer to form second metal traces, electrodes and bond pads; depositing a polymer top layer on said polymer interlayer and said second metal traces, electrodes and bond pads patterning said polymer top layer and said polymer interlayer to expose said first bond pads and electrodes and said second bond pads and electrodes; removing the substrate from the polymer base layer to form a flexible circuit; and embedding the flexible circuit in an curved polymer body, made of polymer softer than said polymer base layer, such that the curved polymer body bonded to a back side and around the edges of the flexible circuit.