The impact of the gate induced drain leakage and impact ionization currents on hysteresis of PD FB SOI circuits is examined, and a physical understanding is provided. Measured silicon data from 90nm and 65nm PD SOI technologies indicate that both components dominate in the body currents at zero gate voltage and non-zero drain voltage. Body currents under these particular conditions are critical to pre-first-switch body voltage establishment, which is definitively validated by a compact modeling experiment. As the OFF-state channel leakage current increases in scaled technologies, these body currents need to be closely monitored and well modeled to properly predict and understand evolution of the hysteresis behavior.
Journal: TechConnect Briefs
Volume: 3, Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 3
Published: May 20, 2007
Pages: 570 - 573
Industry sector: Sensors, MEMS, Electronics
Topics: Compact Modeling