Accession Number : ADP006666

Title :   A Generalized Ferroelectric Capacitor Modeling Methodology,

Corporate Author : NORTH DAKOTA STATE UNIV FARGO

Personal Author(s) : Dunn, Douglas E. ; Paz de Araujo, Carlos A.

Report Date : 05 APR 1991

Pagination or Media Count : 10

Abstract : A generalized ferroelectric capacitor modeling methodology is presented from a theoretical basis through implementation in PSPICE. The approach postulates nonspecific sources of mobile charge as the source of nonideal hysteresis characteristics. These charges are modeled as depletion capacitances in an equivalent circuit model of the ferroelectric capacitor, capable of simulating both AC and DC behavior. A parameter extraction software package is presented, the use of which establishes that the model parameters may be fit to measured hysteresis data with a high degree of accuracy. PSPICE simulation results are then produced which demonstrate the ability to simulate hysteresis and switching behavior. These results may be correlated to measured data to identify specific physical phenomenon, and speed process and device design.

Descriptors :   *CAPACITORS, *ELECTRIC SWITCHES, *FERROELECTRIC MATERIALS, ACCURACY, DEPLETION, EQUIVALENT CIRCUITS, EXTRACTION, HYSTERESIS, METHODOLOGY, MOBILE, MODELS, PARAMETERS, SIMULATION, SWITCHING, VELOCITY.

Subject Categories : Electricity and Magnetism
      Electrical and Electronic Equipment
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE