Abstract
A computer-automated superconductive 55 GHz sampling oscilloscope based on 4 kA/cm2, Nb/Nb2O5/Pb edge Josephson junctions is presented. The Josephson sampler chip was flip-chip bonded to a carrier chip with a coplanar transmission line by use of a novel flip-chip bonding machine. A 5.6 ps step pulse was successfully coupled in to the transmission line and 18.5 GHz multiple reflections plus a parasitic oscillation at 43 GHz were observed. Review of Scientific Instruments is copyrighted by The American Institute of Physics.
Original language | English |
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Journal | Review of Scientific Instruments |
Volume | 64 |
Issue number | 2 |
Pages (from-to) | 561-567 |
ISSN | 0034-6748 |
DOIs | |
Publication status | Published - 1993 |