Superconducting RSFQ Circuits

Jie Ren 
Jan. 31, 2018
SEIEE 1-5 Meeting Room 

Low-temperature superconducting single flux quantum (SFQ) circuits have been successfully opened a commercial application of small and medium-scale integrated (~10K JJs) circuits in a variety of high-performance digital circuits since their inception for more than 30 years, thanks to their unique advantages of high speed, low power consumption, and quantized information storage. On the other hand, in order to solve the increasingly serious energy bottleneck problem encountered by traditional semiconductors, the high-energy superconducting SFQ circuit developed rapidly in this century. On the basis of the original classic SFQ circuit basic component: RSFQ, a variety of lower powers basic components were developed, including ultra-low-power basic computing components that enable physical and logical reversibility. Combined with the growing non-liquid helium immersion cryogenic environment chiller system, the SFQ large supercomputer system still has a large power consumption reduction space, becoming an important alternative to the new computing system in the post-Moore era. This report will describe the latest developments in ultra-low power superconducting SFQ circuits at home and abroad and the latest opportunities and challenges.
Dr. Ren Jie received a Bachelor of Science degree in Physics from the Department of Science Enhancement, Basic Sciences, Nanjing University in 2004 and received a Ph.D. in Physics from the State University of New York at Stony Brook in 2011. After graduating from Ph.D., he joined the RF R&D Department of American Hypres Corporation. Since the Ph.D., he has been working on the research and application development of low-temperature superconducting integrated digital circuits: including reversible computational research in the classical state beyond the critical energy consumption of thermodynamics, high-flux sensitivity, high-bandwidth superconducting analog-digital conversion circuit research and development and a new generation of superconducting SFQ circuit high automation design simulation platform development projects. Dr. Jie Jie joined the Shanghai Institute of Microsystems and Information Technology, Chinese Academy of Sciences in 2015, and is engaged in the research of low-power superconducting integrated digital circuits. In 2016, he was selected into the “Hundred Talents Program” of the Academy of Sciences and the “Pujiang Talents” program in Shanghai.