SRAM or Static Random-Access Memory is the most vital memory technology. fast and robust but faces design challenges in nanoscale CMOS such as high leakage, power consumption, reliability. Quantum-dot Cellular Automata (QCA) alternative technology that can be used to address of conventional SRAM. In this paper, a cost-efficient single layer cell has been proposed QCA. The 39 cells with latency ...

Quantum-dot cellular automata (QCA) are nanoscale digital logic constructs that use electrons in arrays of quantum dots to carry out binary operations. In this paper, a basic building block for QCA will be proposed. The proposed basic building block can be customized to implement classical gates, such as XOR and XNOR gates, and reversible gates, such as CNOT and Toffoli gates, with less cell co...

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 design of flip flops using proposed Rotated-Normal Cells with Displacement (RND) inverter and cell interaction method. The SR latch, Flip Flop (FF), D FF, T FF are developed QCA. gives total average energy dissipa...

Quantum dot Cellular Automata (QCA) is a promising technology and can emerge alternative to the existing CMOS based technology. This paper presents a novel reduced design of a full adder both in size and delay. Next a reduced area multilayered Arithmetic Logic Unit (ALU) is presented with significantly less delay. The designs have been verified and simulated using the QCA Designer tool. Keyword...

A novel technology the Quantum dot Cellular Automata (QCA) appears to be an alternate nano scale technology to provide the properties and functionalities of that have made CMOS successful over the past several decades. The experiment is carried out in QCA were demonstrated and realized the fundamental digital blocks. This paper introduce the designing a computationally useful and regular struct...

CMOS technology has achieved the device dimension in the nanometer range. Beyond this CMOS technology is the QCA (Quantum-dot Cellular Automata). Due to nanoscale defects may occur in this technology so in the consequences of it the faults will occur. This paper presents the defect analysis of QCA basic devices like Majority Voter (MV), inverter. The defect analysis and its effects on the outpu...

Quantum-dot cellular automata (QCA) provide a novel electronics paradigm for information processing and communication. A basic quantum-dot cell consists of several quantum dots with two excess electrons. A binary coded decimal (BCD) and a decimal coded binary (DCB) circuit based on QCA logic gates: the and-or-inverter (AOI) gates are proposed in the study. In addition, the circuits designed by ...

Quantum dot Cellular Automata (QCA) is one of the important nano-level technologies for implementation of both combinational and sequential systems. QCA have the potential to achieve low power dissipation and operate high speed at THZ frequencies. However large probability of occurrence fabrication defects in QCA, is a fundamental challenge to use this emerging technology. Because of these vari...

Physical limitations of Complementary Metal-Oxide-Semiconductors (CMOS) technology at nanoscale and high cost of lithography have provided the platform for creating Quantum-dot Cellular Automata (QCA)-based hardware. The QCA is a new technology that promises smaller, cheaper and faster electronic circuits, and has been regarded as an effective solution for scalability problems in CMOS technolog...

Quantum-dot cellular automata (QCA) is a novel, current-free approach to computing at the nanoscale, which, if realized in computing devices, will have broad-reaching effects in the electronics industry. First, the concept of QCA is outlined. Next, personal research topics are proposed, to include the development of theoretical quantum-dynamic models of switching QCA cells; the development of a...