Experimental realization of a 3D integrated RSFQ T-flip-flop using stacktrons
| Autor: | S. Lomatch, B. Hermanns, B. Ruck, N. Thyssen, R. Schmitz, Hermann Kohlstedt |
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| Rok vydání: | 1999 |
| Předmět: |
Physics
Digital electronics business.industry Clock rate Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Frequency divider law Tunnel junction Rapid single flux quantum Optoelectronics Electrical and Electronic Engineering Resistor business Flip-flop Electronic circuit |
| Zdroj: | IEEE Transactions on Appiled Superconductivity. 9:3966-3969 |
| ISSN: | 1051-8223 |
| DOI: | 10.1109/77.783896 |
| Popis: | Superconducting circuits based upon Rapid Single Flux Quantum (RSFQ) Logic are an interesting approach for future digital electronics with clock frequencies in the range of 100 GHz. Our intention is to increase the integration density of such circuits. Therefore we have successfully fabricated and tested an RSFQ-circuit based on a new kind of stacked three terminal device, henceforth called a "stacktron". A stacktron consists of two vertically arranged all-niobium tunnel junctions, each separately shunted by a thin film resistor, and an access to the intermediate niobium layer. An RSFQ frequency divider (T-flip-flop) including two stacktrons has been tested up to 20 GHz. As a shunt resistor we used Pd/Au, so that /spl beta//sub c/ |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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