Stimulator ASIC for retinal prosthesis (iBIONICS)

神经刺激可以改善某些神经系统疾病患者的生活。从90年代的几个电极，植入物现在可以处理数百个电极，并打开了更复杂和更快的刺激策略的窗口。眼部植入物非常符合这种模式。目前，有超过200个电极的植入物存在。由于电子和材料的改进，这个数字还在不断增加。然而，该领域的未来发展面临着新的挑战。电极密度要求在专用集成电路（ASIC）中嵌入越来越多的电子通道，这需要更大的空间、更大的功率和具有更高数据速率和更高效率的通信链路。iBIONICS已经有了256通道的ASIC。Engage plus项目将提出解决方案，将目前10兆瓦的ASIC静态功耗降低到1兆瓦以下。该作品将以电源树为目标，并与为植入物提供能量的光伏电池相互作用。这些创新的工作将为未来的眼假体需求铺平道路。

Neurostimulation can improve life of people with some neurology disorders. From few electrodes in the 90s,implants can now handle hundreds and open windows to more complex and faster stimulation strategies. Theocular implant fits very well in this pattern. Currently, implants with more than 200 electrodes exist. Thisnumber is constantly increasing thank to electronics and materials improvements. However, futuredevelopments in this field are facing new challenges. The electrode density requires to embed more and moreelectronics channel in Application Specific Integrated Circuits (ASIC) which requires more real estate, morepower and a communication link with a higher data rate and a better efficiency. iBIONICS already have a 256channel ASIC. The Engage plus project will consist in proposing solutions for reducing the current static powerconsumption of the ASIC of 10 mW to less than 1 mW. The works will target the power supply tree andinteractions with a photovoltaic cell that will provide energy to the implant. These innovative works will pavethe way to future ocular prosthesis requirements.