Experimental and computational results on programmable Josephson junction array (JJA) chips based on superconductor-insulator-superconductor (SIS) junctions are presented. Implications of circuit design and fabrication process on the performance are discussed. We introduce a method to decrease the attenuation of the pump microwave. Different designs are compared, suggesting that 1 V chips operating at the third constant voltage step with 70 GHz pump frequency can be produced with our process.
|Number of pages||4|
|Journal||IEEE Transactions on Instrumentation and Measurement|
|Publication status||Published - 2001|
|MoE publication type||A1 Journal article-refereed|