Nanostructure array of coupled RTDs as cellular neural networks

Abstract

SUMMARYThe processing capabilities of a proposed nanoelectronic device are investigated. The device is considered as a global dynamical system with local circuit model components. The system equations and the corresponding network model are presented. The characteristics of this network model are compared with the cellular neural networks. Certain characteristics of the network are analysed theoretically and demonstrated with circuit-system level simulations. As a novel property, it is shown that the single layer nanodevice network structure is a basic reaction-di usion system and it is capable of autowave propagation. Furthermore, the same network structure exhibits several image processing capabilities like image smoothing, edge enhancement, and horizontal or vertical line detection using simple arrangements of the device parameters.

Resonant Tunneling Diodes-Based Cellular Nonlinear Networks with Fault Tolerance Analysis

“…Among the different nanometer electronic devices discovered up to now, the resonant tunneling diode stands on the center of the stage. RTDs possess extreme compactness, picoseconds switching speed, nonmonotonic voltage-current characteristics, and possible monolithic and vertical integration with GaAs FETs [5].…”

“…The devices and circuits based on quanta tunneling shows their advantages in nanometer-scale technology. Among several proposed nanometer electronic devices, the resonant tunneling diode possesses a relatively easy fabrication process and folded-back negative differential resistance (NDR) in current-voltage (I-V) characteristics [5,6], thereby exploring several applications in both digital and analog circuits [7]. Some researchers have also stated that RTD have extensive applications in Microwave oscillator circuit for terahertz and can be as the main prospect for the basic element of the new logic cell in high-speed digital integrated circuit.…”

Self‐sustained solitary waves in a tunnel diode oscillator lattice and their applications in frequency division

“…The VCO and subsequent prescaler are required to operate in the highest possible speed. Therefore, it is beneficial to implement these devices using tunnel devices including tunnel diodes (TDs) or resonant tunneling diodes (RTDs), [2][3][4][5] because these types of diodes avoid the use of speed-limiting CMOS circuits. Several schemes have been proposed for frequency division.…”

A study on semiflows generated by cooperative full‐range CNNs

“…The ACE chips are the core of the CNN universal machine , where they are integrated with stored programmable algorithms and software on the system level. More recently, nanoscale electronic technologies have emerged as a powerful mean for implementing massively parallel large‐scale CNN processors . We refer the reader to , for the first successful attempts to bridge the gap between nanoscale devices and CMOS integrated devices in the implementation of CNNs, and to , for a comparison among several topographic and non‐topographic image‐processing architectures recently developed within the CNN community.…”