15.4 A Neuroprosthetic SoC with Sensory Feedback Featuring Frequency-Splitting-Based Wireless Power Transfer with 200Mb/s 0.67pJ/b Backscatter Data Uplink and Unsupervised Multi-Class Spike Sorting. - Yu Huang; Bowen Liu; Yuhan Hou; Jianxiong Xu; Hao You; Ashley Hung; Swarnava Ghosh; Eric Liu; Naize Yang; Junyu Ma; Hanfeng Cai; Laura Kondrataviciute; et al. (ISSCC, 2025)