Design of computationally useful single‐electron digital circuits

1996 ◽  
Vol 79 (1) ◽  
pp. 526-539 ◽  
Author(s):  
M. G. Ancona
Keyword(s):  
Digital Circuits ◽  
Single Electron

scholarly journals Digital Circuits and Systems based on Single-Electron Tunneling Technology

2021 ◽  
Vol 16 (1) ◽  
pp. 1-9
Author(s):  
Janaina Gonçalves Guimarães ◽  
Beatriz De Oliveira Câmara
Keyword(s):  
Design Methodology ◽  
Large Scale ◽  
Digital Circuits ◽  
Electron Tunneling ◽  
Systems Design ◽  
Single Electron ◽  
Ultra Low Power ◽  
High Frequencies ◽  
Single Electron Tunneling ◽  
Temperature Noise

In this work, digital circuits and systems based on single-electron tunneling technology will be presented and analyzed. A simple design methodology will be proposed using a programmable single-electron NAND/NOR gate as a building block. Aspects such as operating temperature, noise, and charge fluctuations will be discussed. SET devices can reach ultra-low power consumption and high frequencies during operation. Although there are already many digital SET circuits and systems previously proposed and studied, there are few works about design methodology for SETs. This study shows a proposal for designing combinational and sequential singleelectron circuits aiming at systems design. In the end, this work reinforces the use of single-electron technology as a possible large scale device in the future.

Single-phase single-electron digital circuits

1997 ◽  
Vol 81 (7) ◽  
pp. 3311-3315 ◽  
Author(s):  
M. G. Ancona
Keyword(s):  
Single Phase ◽  
Digital Circuits ◽  
Single Electron

Possible performance of capacitively coupled single‐electron transistors in digital circuits

1995 ◽  
Vol 78 (4) ◽  
pp. 2520-2530 ◽  
Author(s):  
Alexander N. Korotkov ◽  
Ruby H. Chen ◽  
Konstantin K. Likharev
Keyword(s):  
Digital Circuits ◽  
Single Electron ◽  
Single Electron Transistors ◽  
Capacitively Coupled ◽  
Electron Transistors

Evaluation of single-electron movies of glutamine synthetase molecules

1983 ◽  
Vol 41 ◽  
pp. 280-281
Author(s):  
W. Kunath ◽  
E. Zeitler ◽  
M. Kessel
Keyword(s):  
Electron Microscope ◽  
Glutamine Synthetase ◽  
Electron Irradiation ◽  
Structural Damage ◽  
Structural Changes ◽  
Single Electron ◽  
Continuous Series ◽  
Digital Recording ◽  
Recording Device ◽  
Low Exposure

The features of digital recording of a continuous series (movie) of singleelectron TV frames are reported. The technique is used to investigate structural changes in negatively stained glutamine synthetase molecules (GS) during electron irradiation and, as an ultimate goal, to look for the molecules' “undamaged” structure, say, after a 1 e/Å2 dose.The TV frame of fig. la shows an image of 5 glutamine synthetase molecules exposed to 1/150 e/Å2. Every single electron is recorded as a unit signal in a 256 ×256 field. The extremely low exposure of a single TV frame as dictated by the single-electron recording device including the electron microscope requires accumulation of 150 TV frames into one frame (fig. lb) thus achieving a reasonable compromise between the conflicting aspects of exposure time per frame of 3 sec. vs. object drift of less than 1 Å, and exposure per frame of 1 e/Å2 vs. rate of structural damage.

Single-electron sensitivity with a lens-coupled CCD camera

1993 ◽  
Vol 51 ◽  
pp. 642-643
Author(s):  
G.Y. Fan ◽  
Bruce Mrosko ◽  
Mark H. Ellisman
Keyword(s):  
Focal Length ◽  
Thick Layer ◽  
Ccd Camera ◽  
Single Electron ◽  
Bottom Flange ◽  
X Rays ◽  
Red Phosphor ◽  
Ccd Detector ◽  
Lens Assembly ◽  
Efficient Coupling

A lens coupled CCD camera showing single electron sensitivity has been built for TEM applications. The design is illustrated in Fig. 1. The bottom flange of a JEM-4000EX microscope is replaced by a special flange which carries a large rectangular leaded glass window, 22 mm thick. A 20 μm thick layer of red phosphor is coated on the window, and the entire window is sputter-coated with a thin layer of Au/Pt. A two-lens relay system is used to provide efficient coupling between the image on the phosphor scintillator and the CCD imager. An f1.0 lens (Goerz optical) with front focal length 71.6 mm is used as the collector. A mirror prism, of the Amici type, is used to "bend" the optical path by 90° to prevent X-rays which may penetrate the leaded glass from hitting the CCD detector. Images may be relayed directly to the camera (1:1) or demagnified by a factor of up to 3:1 by moving the lens assembly.

ALL-OPTICAL DIGITAL CIRCUITS

1988 ◽  
Vol 49 (C2) ◽  
pp. C2-459-C2-462 ◽  
Author(s):  
F. A.P. TOOLEY ◽  
B. S. WHERRETT ◽  
N. C. CRAFT ◽  
M. R. TAGHIZADEH ◽  
J. F. SNOWDON ◽  
...  
Keyword(s):  
Digital Circuits ◽  
All Optical
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