Fig. 11.
(a) SEM images of laser-deinsulated Utah electrode array tips with iridium film (left) and SIROF (right). (b) SEM images of an as-deposited iridium film (left), AIROF activated using rectangular pulses with levels of −0.8 and 0.95 V (centre), and AIROF activated using rectangular pulses with levels of −0.85 and 0.95 V (right).