The present invention provides a flexible circuit electrode array adapted for neural stimulation, comprising: a polymer base layer metal traces deposited on the polymer base layer, including electrodes suitable to stimulate neural tissue a polymer top layer deposited on the polymer base layer and the metal traces at least one tack opening. The present invention provides further a method of making a flexible circuit electrode array comprising depositing a polymer base layer depositing metal on the polymer base layer patterning the metal to form metal traces depositing a polymer top layer on the polymer base layer and the metal traces and preparing at least one tack opening.
