| Zugriffsnummer | 11991 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Bit error rate experiments in ring-shaped RSFQ circuits |
| Autor(in); Institution |
Khabipov, Marat I.; 2.402, RSFQ-Logikschaltungen, PTB-Braunschweig; IREE Russian Academy of Sciences, Moscow, RUSSIA
Kessel, Wolfgang; 2.002, Messunsicherheit im industriellen und gesetzlichen Meßwesen, PTB-Braunschweig
Buchholz, Friedrich-Immanuel; 2.402, RSFQ-Logikschaltungen, PTB-Braunschweig
Dolata, Ralf; 2.401, Einzelelektronentunneln, PTB-Braunschweig
Niemeyer, Jürgen; 2.4, Quantenelektronik, PTB-Braunschweig
|
| Quelle/Jahr | Applied Superconductivity: 6 (1998), 10-12, 719-725 |
| ISSN | 0964-1807 |
| Verlag | Oxford: Pergamon |
| Freie Schlagworte | RSFQ impulse logic ; bit error rate experiments ; digital superconducting electronics ; tunneling phenomena |
| Zusammenfassung | Ring-shaped Rapid Single Flux Quantum (RSFQ) circuits composed of segments of Josephson Transmission Lines (JTLs) and other RSFQ circuits enable permanent SFQ pulse circulation. New ring structures of different designs have been realized which comprise T-flipflop (TFF) and multiplier (MULT) circuits. Reliability in circuit operation has been proven experimentally by a Bit Error Rate BER ≊ 10-16. The fabrication process has been optimized by using PTB-4 μm Nb/Al2O3-Al/Nb trilayer technology with externally shunted tunnel junctions of critical current densities of jc ≊ 1 kA/cm2. Characteristic voltage is Vc = 250 μV and Steward-McCumber parameter βc ≤ 1. A linear dependence of pulse circulation frequency on JTL bias currents has been measured within a bias current interval of 20%. (Work supported by the Bundesministerium für Bildung und Forschung (BMBF), Germany.) |
| Rechteinformation | 1999, Elsevier |