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Experimental study of the RSFQ logic elements

Conference · · IEEE Trans. Magn.; (United States)
OSTI ID:6086848

New elements of the Rapid Single Flux Quantum (RSFQ) logic family have been designed, fabricated and tested. All-Nb 14-layer 5 ..mu..m technology using externally shunted tunnel junctions with j/sub c/ = 500 A/cm/sup 2/, I/sub c/R/sub s/ = 300 ..mu..V, and ..beta../sub c/ less than or equal to 1 has been employed. The T-flip-flop circuit has been demonstrated to operate with +-30% margins at clock frequencies below 50 GHz and with at least +-10% margins at the frequencies up to 120 GHz. Operation of the input (DC/SFQ) converter with +-40% margins and output (SFQ/DC) converter with +-40% margins is also demonstrated.

Research Organization:
Institute of Radio Engineering and Electronics USSR Academy of Sciences, Marx avenue 18, 103907 Moscow GSP-3 (SU); Dept. of Physics, Moscow State Univ., Moscow 119899 GSP (SU)
OSTI ID:
6086848
Report Number(s):
CONF-880812-
Journal Information:
IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. 25:2; ISSN IEMGA
Country of Publication:
United States
Language:
English