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Nanotechnology for Next-Generation Josephson Voltage Standards



Samuel P. Benz, Paul D. Dresselhaus, Charles J. Burroughs


We have developed two voltage standard systems: the programmable Josephson voltage standard and the Josephson arbitrary waveform synthesizer. The programmable system is fully automated and provides stable programmable DC voltages from -1.2 V to +1.2 V. The synthesizer is the first quantum-based AC voltage standrd source. It uses perfectly quantized Josephson pulses to generate arbitrary waveforms with low harmonic distortion and stable, calculable time-dependent voltages. Both systems are presently limited to output voltages less than 10 V as a result of frequency requirements and the limits of junction fabrication technology. We describe the development of fabrication technology for these systems and describe the circuit- and fabrication-related constraints that presently limit system performance. Finally, we propose the use of lumped arrays of junctions to achieve higher practical voltages through development of a nanoscale junction technology, in which 15,000 junctions are closely spaced at 50 nm to 100 nm internals.
Proceedings Title
Proc., Symp. on Microtech. in Metrol. and Metrol. in Microsys.
Conference Dates
August 28-September 4, 2000
Conference Location
Delft, NL


array, josephson junction, voltage standard


Benz, S. , Dresselhaus, P. and Burroughs, C. (2000), Nanotechnology for Next-Generation Josephson Voltage Standards, Proc., Symp. on Microtech. in Metrol. and Metrol. in Microsys., Delft, NL, [online], (Accessed July 13, 2024)


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Created August 30, 2000, Updated January 27, 2020