Lingke Ding

The IEEE Solid-State Circuits Society (SSCS) has named Lingke Ding, a doctoral candidate in Purdue University’s Elmore Family School of Electrical and Computer Engineering, a recipient of its 2025–2026 Predoctoral Achievement Award.

The competitive award recognizes outstanding doctoral students conducting research in solid-state circuits. Recipients receive a $1,000 honorarium and support for related expenses. Applicants must be members of IEEE and SSCS, have completed at least one year of doctoral study in solid-state circuits, and demonstrate excellence in academic performance, research quality and alignment with the society’s mission.

“It is a tremendous honor to receive the SSCS Predoctoral Achievement Award,” said Ding. “I am deeply grateful that our lab’s work on ultra-low-power, charging-free wearable systems has been recognized by the solid-state circuits community.”

Ding is a fourth-year Ph.D. student in Purdue ECE’s SPARC Lab, advised by Shreyas Sen, Elmore Associate Professor of Electrical and Computer Engineering. Ding’s research focuses on ultra-low-power integrated circuit design to enable battery-free and charging-free wearable technologies. His work spans theoretical modeling, biophysical analysis, circuit innovation and full system integration.

Among his recent contributions is a crystal-less BodyID system presented at the 2025 IEEE International Solid-State Circuits Conference. The design integrates an asynchronous, clockless, leakage-powered wake-up receiver with over-the-channel clock recovery. Fabricated in 65 nm CMOS technology, the system achieves 191.6 nanowatts of listening power with less than 80 microseconds of wake-up latency, earning an invited demonstration session at the conference.

In parallel, Ding established a theoretical and biophysical framework for capacitive electro-quasistatic Human Body Powering. His work introduced series resonance to enhance received power and created a predictive model for milliwatt-scale energy transfer across the human body. The research was published in IEEE Transactions on Biomedical Engineering in 2025.

Ding’s contributions have led to multiple U.S. patent applications and advance the development of intelligent wearable systems that operate without conventional batteries or frequent charging.

The recognition underscores the growing impact of research within Purdue ECE’s SPARC Lab at the intersection of ultra-low-power circuits, human-centric communication and energy-efficient system design.