Abstract：In this paper, the structure of a 10V programmable Josephson junction array and its superconducting characteristics was researched in detail. The bias algorithm and the bias electronics of the 10 volt programmable Josephson array were studied. This paper proposed n new I-V curve scanning method by using a digital voltmeter instead of the oscilloscope, which greatly improves the evaluation accuracy of the superconducting characteristics. The experimental results showed that the critical current of each subarray was greater than 4 mA, and the minimum quantum voltage step width of each subarray id 1.5 mA, which is important for the research of cryocooled 10 volt quantum voltage system.
2025, Vol. 46 
