Research And Implementation Of The Framework For QCA Circuit Simulation Software

With the persistent improvements in integrated circuits manufacturing technology,the size of CMOS devices becomes smaller and smaller.It induces some inevitable problems,such as large leakage current,high energy consumption density and the parasitic effect of interconnections,which seriously affects the development of integrated circuits,so new technologies are needed to replace CMOS devices.In the 90 s of last century,quantumdot cellular automata(QCA)is proposed,because of its high integration level,ultrahigh processing speed and extremely low power dissipation,it has shown good development prospects and is quickly concerned by scholars.Since the dawn of QCA,it was theoretically investigated and rapidly developed in software.In QCA circuit simulation software,QCADesigner,as the state-of-the-art standard simulation tool,gives the initial implementation for bistable and coherence vector algorithms.Although QCADesigner is widely used,but unfortunately,it doesn't take software framework into consideration,resulting huge difficulties on its extensibility.To overcome this shortcoming,a QCA circuit simulation software with an extensible framework has been implemented.For this work,this dissertation firstly studies the software framework,and proposes an extensible QCA circuit simulation software framework,upon which bistable and coherence vector algorithms are reimplemented.The simulation results are compared with QCADesigner,which fully shows the effectiveness of the proposed framework.Then,a QCA energy analysis algorithm is implemented using this framework,demonstrating the well extensibility of the framework.Finally,for the convenience of users,the GUI of the QCA circuit simulation software is designed and implemented,and achieved good results.