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Your search keyword '"Kromann, R."' showing total 2 results
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2 results on '"Kromann, R."'

1. A new design approach for high-Tc based RSFQ logic

Author

Kaplunenko, V.K., Ivanov, Z.G., Bogdanov, A., Stepantsov, E.A., Claeson, T., Holst, T., Sun, Z.J., Kromann, R., Shen, Y.Q., Freltoft, T., and Wikborg, Erland

Subjects
Logic design -- Innovations, Logic circuitry -- Design and construction, Business, Electronics, Electronics and electrical industries
Abstract

A new design concept is proposed for fabricating rapid single flux quantum (RSFQ) logic circuits. The design approach uses a superconducting layer instead of a superconducting ground plane to increase the geometric size of the RSFQ cell and form narrow slit inductances with width comparable to the London penetration depth. It has been used in the fabrication of a high performance flip-flop cell.

Published
1995

2. Reproducible step-edge junction SQUIDs

Author

Shen, Y.Q., Sun, Z.J., Kromann, R., Holst, T., Vase, P., and Freltoft, T.

Subjects
Superconducting quantum interference devices -- Research, Josephson junction -- Research, Lithography, Electron beam -- Usage, Business, Electronics, Electronics and electrical industries
Abstract

Electron-beam lithography and Ar-ion milling are used to fabricate high-critical temperature, step-edge junction YBCO superconducting quantum interference devices (SQUIDs) on SrTiO3 substrates. The electrical properties and microstructure of the processed SQUIDs are then studied by critical current measurements and scanning electron microscopy. Results show that the SQUIDs emit negligible electromagnetic noise. The devices' step-edge are also very straight, with the YBCO layers growing smoothly over it.

Published
1995

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