| Numéro |
J. Phys. IV France
Volume 12, Numéro 3, May 2002
|
|
|---|---|---|
| Page(s) | 157 - 160 | |
| DOI | https://doi.org/10.1051/jp420020058 | |
J. Phys. IV France 12 (2002) Pr3-157
DOI: 10.1051/jp420020058
A 20-GHz FLUX-1 superconductor RSFQ microprocessor
M. DorojevetsState University of New York, Department of Electrical and Computer Engineering, Stony Brook, NY 11794-2350, U.S.A.
Abstract
The first single-chip superconductor FLUX-1 microprocessor prototype with a target clock frequency of 17-20 GHz has been designed
in the Rapid Single Flux Quantum (RSFQ) logic and fabricated using lowtemperature 4 kA/cm
2, 1.75-
m Nb/AlOx/Nb Josephson junction technology. A FLUX-1 chip represents an 8-bit deeply pipelined microprocessor with a new parallel
partitioned architecture that has been developed to tolerate interconnect delays and fill long FLUX-1 pipelines with operations.
A FLUX-1 chip contains 65,759 Josephson junctions on a
die with flip-chip packaging. First FLUX-1 chips fabricated in 2001 are currently under testing at TRW.
© EDP Sciences 2002