Figure 5.

(a) Schematic diagram of the five-layer PA/Al₂O₃/PA/ Al₂O₃/PA film on a sensor IC; (b) active soaking test for the film-coated humidity sensor at 87 °C; (c) measurement setting of the humidity sensor after active soaking test; (d) fabricated LCP-based retinal prosthesis: (i) comparison with a dime and the inner surface, and magnification of the retinal electrode array coated by iridium oxide, (ii) the device on a model eye showing conformal attachment, (iii) electrode part was precurved to fit the eye-curvature. Reproduced with permission from [55], published by IEEE, 2015.