1. Development of 10-v josephson series arrays
- Author
-
Se Il Park and Hyun Kwon Hong
- Subjects
Josephson effect ,Materials science ,business.industry ,Attenuation ,Electrical engineering ,Pi Josephson junction ,Optoelectronics ,Superconducting tunnel junction ,Electrical and Electronic Engineering ,business ,Instrumentation ,Stripline ,Microwave ,Voltage ,Electronic circuit - Abstract
Developed a new fabrication process for 10-V Josephson junction series arrays (JJAs). A plasma nitridation process is employed for reducing the microwave attenuation in the Josephson microstripline. Improvements of microwave attenuation are about 2 dB for test arrays of 2000, 3000, and 4000 Josephson junctions in a single stripline. We obtained stable quantized voltage steps up to 12 V at 76.4 and 86.8 GHz with step amplitudes of more than 5 /spl mu/A and stability times of more than 5 min. The circuits used 14 648 junctions arranged in 8 parallel paths.
- Published
- 2003
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