A Physical Based Ferroelectric Capacitor Compact Model for FeRAM Simulation
This paper proposes a ferroelectric capacitor compact model for circuit simulation based on Preisach theory and the one-dimensional distribution approximation of ferroelectric coercive voltage probability density function.The model is implemented in Verilog-A language,which is compatible with SPICE,and accurately describes the unsatu-rated hysteresis characteristics of ferroelectric capacitors,as well as their capacitance variation under arbitrary voltage changes.The modular design of the model ensures good scalability.Simulation results agree well with experimental data,making it a reliable reference for designing ferroelectric memories(FeRAM).
ferroelectric random-access memoryferroelectric capacitorcompact modelthe Preisach theory
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