News Archive 2015

Breakthrough in SNS Technology for AC Voltage Standards

Cryoprobe with 10 V programmable SNS Josephson Junction Array Chip
After 6 years of work to improve SNS cleanroom technology Supracon for the first time achieved to produce a fully functional 10 V programmable Josephson Voltage Standard array. Supracon is now the first commercial supplier of these circuits in the world.  
Improvements to the existing SNS (S: Superconductor, N: Normal conductor) technology have resulted in the first fully functioning 10 V programmable Josephson Voltage Standards chips. This is an important milestone on the way to establishing the next generation of primary AC Voltage standards in the world.
Supracon wants to thank IPHT (Leibniz Institute of Photonic Technologies e.V.) for the continuous support, as well as PTB (Physikalisch-Technische Bundesanstalt) and in particular Dr. Ralf Behr and his group for the helpful suggestions.
Supracon is currently the only supplier for fully functional AC Quantum Voltmeter systems available as liquid helium and cryocooler (helium free) based versions. The system provides opportunities to calibrate dc voltages up to 10 V with an accuracy of 1×10-10 and ac voltages in kHz range up to 20 VPP with an accuracy of 2×10-8 automatically.
The company also offers competitive prices for components or system options without ac calibration function like for example NIST (National Institute of Standards and Technology). Please contact us and we will tailor a solution for your particular needs.
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