Quasi-Static Terminal-Charge Model for Symmetric Double-Gate Ferroelectric FETs

Autor: Mulaka Haranadha Reddy, Srivatsava Jandhyala
Rok vydání: 2016
Předmět:
Zdroj: IEEE Transactions on Electron Devices. 63:940-945
ISSN: 1557-9646
0018-9383
DOI: 10.1109/ted.2016.2519761
Popis: Symmetric double-gate ferroelectric FETs (SDG-FeFETs) have better short-channel electrical behavior and hold promise in reducing the subthreshold swing below the classical Boltzmann’s limit. Surface potential and drain current models for SDG-FeFETs have already been published in the literature. In this paper, we derive the quasi-static terminal-charge models for these devices, which can be seamlessly integrated into standard circuit simulators using the Verilog-A interface. The terminal-charge models proposed are shown to match very well with exact numerical integration of Ward–Dutton terminal-charge integrals, for all bias conditions. Core compact model for the SDG-FeFET is implemented in a SPICE circuit simulator, and the simulation of different circuits built using SDG-FeFET transistors shows improvement in their switching behavior.
Databáze: OpenAIRE