A ferroelectric capacitor simulation model

The authors have developed a model of the switching mechanism within lead zirconate titanate (PZT) materials that allows accurate reproduction of the change in material polarization with the change in applied field. Changes in the electrical characteristics of the material due to aging, fatigue, and temperature may be reflected by changes in the model parameters. The model may be simulated numerically and inserted into software to simulate the operation of a ferroelectric capacitor in an electronic circuit. The authors describe the theoretical model, develop the numerical algorithm for simulating the operation of a ferroelectric capacitor, and provide examples of waveforms generated by the simulation for standard test and application circuit configurations using a ferroelectric capacitor.<>