A stiffener-reinforced microelectrode array device and fabrication method having a plurality of polymer layers surroundably encapsulating one or more electrodes connected to one or more metal traces so that the one or more electrodes are exposed. A stiffening shank is also integrally embedded in the polymer layers adjacent an insertion end of the device near the electrodes to provide mechanical support during insertion.
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
 The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC for the operation of Lawrence Livermore National Laboratory.