Novel Memory Structures in QCA Nano Technology

Majeed, Ali H.; Alkaldy, Esam; Zainal, Mohd Shamian; Nor, Danial Md

doi:10.37917/ijeee.sceeer.3rd.17

Cited by 6 publications

(3 citation statements)

References 27 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Show the superiority of the suggested Flip-Flop in comparison to other designs. Although the cell number and area in the suggested design are the same as the corresponding parameters of the circuit in reference [31], the delay and cost of the proposed circuit have a 67% improvement compared to the circuit in reference [29]. Several memory designs are compared in Error!…”

Section: Avg_ebathmentioning

confidence: 99%

Innovation of a Novel Low-Power Modified-GDI QCA-Based Logic Circuit

Sadrarhami,

Zanjani,

Dolatshahi

et al. 2023

Preprint

View full text Add to dashboard Cite

This paper presents a Modified Gate Diffusion Input (MGDI) design with four inputs for Quantum-dot Cellular Automata (QCA) technology. QCA is a promising nanotechnology that offers benefits such as low power consumption, and high density, making it a potential alternative to CMOS technology. The proposed planar cell design has advantages over previous designs, including a 19% reduction in the number of cells, a 29% reduction in total energy consumption, and a 44% reduction in average energy loss at the same occupancy level. The proposed block is capable of implementing 21 basic combinational functions and various sequential functions. The simulation of functions in 18nm technology and energy consumption calculation indicates that the resulting circuits have improvements of 41%, 27%, 27%, and 20% compared to multiplexers, comparators, four-bit parity circuits, and single-bit memory, respectively. Additionally, the number of cells in the proposed circuits has improved by 10%, 7%, 22%, and 19%, respectively.

show abstract

Section: Avg_ebathmentioning

confidence: 99%

Innovation of a Novel Low-Power Modified-GDI QCA-Based Logic Circuit

Sadrarhami,

Zanjani,

Dolatshahi

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The Authors in [14] have presented D latch and D FF with positive and negative edge triggers using a multiplexer and with the addition of a level-to-edge converter circuit. The Majority gate is added at the output to add a set and reset feature to it.…”

Section: Related Workmentioning

confidence: 99%

Flip Flops Design in Quantum Dot Cellular Automata Technology: Towards Digitization

Repe,

Koli

2023

IJRITCC

View full text Add to dashboard Cite

Quantum-Dot Cellular Automata (QCA) is a transistor-less technology. In QCA, Columbic repulsion between electrons in the quantum dots makes data transfer possible. This paper presents the design of flip flops using a proposed Rotated-Normal Cells with Displacement (RND) inverter and a cell interaction method. The SR latch, SR Flip Flop (FF), D FF, and T FF are developed using QCA. The proposed D FF gives total and average energy dissipation of 1.31e-002eV and 1.19e-003eV respectively. It also gives a delay of 1 clock phase. The Proposed T FF provides total and average energy dissipation of 2.40e-002eV and 2.18e-003eV respectively, depicting efficient D FF and T FF in energy dissipation. The proposed SR Flip flop design gives an efficient area. The FFs with the proposed RND inverter and cell interaction method can be the best choice for future Nano communication to construct Nano circuits with less energy dissipation and high speed.

show abstract

“…The two possible configurations of a cell are illustrated in Figure 1. The cell with polarization –1 represents Logic 0, and the cell with polarization +1 represents Logic 1 (Majeed et al , 2020a).…”

Section: Introductionmentioning

confidence: 99%

A new approach to bypass wire crossing problem in QCA nano technology

Majeed

Alkaldy

2021

Self Cite

View full text Add to dashboard Cite

Purpose This study aims to replace current multi-layer and coplanar wire crossing methods in QCA technology to avoid fabrication difficulties caused by them. Design/methodology/approach Quantum-dot cellular automata (QCA) is one of the newly emerging nanoelectronics technology tools that is proposed as a good replacement for complementary metal oxide semiconductor (CMOS) technology. This technology has many challenges, among them being component interconnection and signal routing. This paper will propose a new wire crossing method to enhance layout use in a single layer. The presented method depends on the central cell clock phase to enable two signals to cross over without interference. QCADesigner software is used to simulate a full adder circuit designed with the proposed wire crossing method to be used as a benchmark for further analysis of the presented wire crossing approach. QCAPro software is used for power dissipation analysis of the proposed adder. Findings A new cost function is presented in this paper to draw attention to the fabrication difficulties of the technology when designing QCA circuits. This function is applied to the selected benchmark circuit, and the results show good performance of the proposed method compared to others. The improvement is around 59, 33 and 75% compared to the best reported multi-layer wire crossing, coplanar wire crossing and logical crossing, respectively. The power dissipation analysis shows that the proposed method does not cause any extra power consumption in the circuit. Originality/value In this paper, a new approach is developed to bypass the wire crossing problem in the QCA technique.

show abstract

Novel Memory Structures in QCA Nano Technology

Cited by 6 publications

References 27 publications

Innovation of a Novel Low-Power Modified-GDI QCA-Based Logic Circuit

Innovation of a Novel Low-Power Modified-GDI QCA-Based Logic Circuit

Flip Flops Design in Quantum Dot Cellular Automata Technology: Towards Digitization

A new approach to bypass wire crossing problem in QCA nano technology

Contact Info

Product

Resources

About