Sergey K. Tolpygo
Dr. Sergey K. Tolpygo is a technical staff member in the Quantum Information and Integrated Nanosystems Group, pursuing research in very-large-scale superconducting integrated circuits and developing the technology for the fabrication of these circuits. Previously, he was a director of fabrication operations at HYPRES Inc., and before that, a senior research scientist at Stony Brook University.
Most recently, Tolpygo has developed a fabrication process for superconducting integrated circuits containing eight superconducting metal layers and based on Nb/Al-AlOx/Nb Josephson junctions. He is a part of the team working on the development of the most advanced process for superconductor electronics, which contains ten planarized superconducting metal layers and deep submicron features. He has demonstrated a deep submicron stud-via technology for this process. Tolpygo has also worked on various materials and fabrication aspects of superconductor science and technology for the classical and quantum circuits and systems, and was a part of the team that observed for the first time in superconducting qubits, quantum coherence in a macroscopic system.
Tolpygo has authored or coauthored about 100 papers in peer-reviewed scientific journals, three patents, and numerous conference presentations in the field of superconductivity, materials science, and superconductor integrated circuits fabrication. These publications have been cited approximately 2,000 times by his peers. For many years, he served as a technical editor for the IEEE Transactions on Applied Superconductivity and as reviewer for this and other journals. Since 2003, Tolpygo has been an adjunct associate professor in the Department of Physics and Astronomy at Stony Brook University and a scientific advisor of three doctoral students.
Tolpygo holds an MS degree in metallurgy and physics of metals from the National University of Science and Technology (MISiS) in Moscow and a PhD degree in condensed matter physics from the Institute of Solid State Physics of the Russian Academy of Sciences.