A flexible circuit electrode array, which comprises: a polymer base layer;
metal traces deposited on said polymer base layer, including electrodes
suitable to stimulate neural tissue; a polymer top layer deposited on
said polymer base layer and said metal traces; and a partial or entire
coating of the base and top layer by a soft polymer.
A method of preparing a flexible circuit electrode array, comprising: (a)
providing a first soft polymer layer; (b) depositing a first a base layer
on the first soft polymer layer; (c) providing a metal thin film on the
base layer; (d) depositing a top polymer layer on the metal thin film;
(e) providing holes in the top polymer layer; (f) depositing a second
soft polymer layer on the top polymer layer; (g) providing holes in the
second soft polymer layer for bond pads and electrodes; and (h) preparing
electrodes in the provided holes.
A method of preparing a flexible circuit electrode array, comprising: (a)
providing a first soft polymer layer; (b) depositing a first a base layer
on the first soft polymer layer; (c) providing a metal thin film on the
base layer; (d) depositing a top polymer layer on the metal thin film;
(e) depositing a second soft polymer layer on the top polymer layer; (f)
providing holes in the second soft polymer layer and in the top polymer
layer for bond pads and electrodes; and (g) preparing electrodes in the
provided holes.