Issues

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2018

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vol. 16 /

Issue 2

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Md. Abdullah-Al-Shafi
«A Study on 2D 2-Dot 1-Electron QCA Based Full Adder and Ripple Carry Adder Design»
289–301 (2018)

PACS numbers: 73.21.Hb, 73.21.La, 73.63.Kv, 73.63.Nm, 85.30.De, 85.35.Be, 85.40.Bh

The restrictions of complementary metal-oxide semiconductor (CMOS) technology proceeded to the breakthroughs of novel technologies. Among the rising technologies in the nanoscale field, quantum-dot cellular automata (QCA) are a significant term. This imminent nanotechnology is composing its aspect due to extreme competence and small area prerequisite and reduces the critical practical boundaries of CMOS. In this study, two-dimensional two-dot one-electron QCA cells, a variation of two-dimensional four-dot two-electron QCA cells, are applied to model a full adder. Later, the proposed adder is utilized to develop a ripple carry adder. Latent energies have been processed to verify and analyze the outlined layout. The concerns associated with power and energy depletion have also been conferred, and it is realized that the volume of power and energy required to drive these designs is incredibly minimal. Lastly, the outlined design has been assessed with the design with four-dot two-electron QCA cells.

Keywords: quantum-dot cellular automata, full adder, ripple carry adder, majority vote, Coulomb’s repulsion

https://doi.org/10.15407/nnn.16.02.289

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