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Nanoelectronic Device Applications Handbook by Krzysztof Iniewski, James E. Morris

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20

Minimal Majority Gate Mapping of Four-Variable Functions for Quantum-Dot Cellular Automata

Peng Wang, Mohammed Niamat,and Srinivasa Vemuru

CONTENTS

20.1 Introduction

20.2 Background Material

20.2.1 QCA Cells

20.2.2 QCA Devices

20.2.3 QCA Clock

20.3 Terminology

20.3.1 Primitives

20.3.2 Majority Expression

20.3.3 Four-Dimensional Cube and Four-Variable K-map

20.3.4 Hamming Distance

20.3.5 A Method to Find Standard Functions

20.4 Logic Synthesis Methodology and Implementation

20.4.1 Simplifying and Decomposing

20.4.2 Conversion to Majority Gates

20.4.3 Remove Repeated Terms

20.5 Results and Comparison

20.6 Conclusions

Acknowledgment

Reference

20.1  INTRODUCTION

Complementary metal–oxide–semiconductor (CMOS) scaling faces many serious difficulties ...

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