Title :
A Programmable Josephson Voltage Standard Chip using Arrays of NbN/TiN/NbN/TiN/NbN Double-Junction Stacks Operated at 10K
Author :
Ishizaki, M. ; Yamamori, H. ; Shoji, A. ; Dresselhaus, P. ; Benz, S.
Author_Institution :
National Inst. of Adv. Ind. Sci. & Technol., Tsukuba
Abstract :
A programmable Josephson voltage standard chip using arrays of NbN/TiN/NbN/TiN/NbN double-junction stacks was fabricated and operated at 10 K. The circuit with over 260,000 junctions showed constant voltage steps at +/- 6 V when driven at 11 GHz microwave bias. Further investigation is required to achieve 10 V operation at the desired design frequency of 19 GHz
Keywords :
Josephson effect; measurement standards; niobium compounds; superconducting junction devices; superconducting microwave devices; titanium compounds; voltage measurement; 10 K; 10 V; 11 GHz; 19 GHz; 6 V; NbN-TiN; microwave bias; programmable Josephson voltage standard chip; voltage steps; Coplanar waveguides; Electrodes; Etching; Frequency; Microwave antenna arrays; Resistors; Tin; Voltage; Waveguide junctions; Wiring;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2004 Conference on
Conference_Location :
London
Print_ISBN :
0-7803-8494-6
Electronic_ISBN :
0-7803-8494-6
DOI :
10.1109/CPEM.2004.305373
