A study of floating-body effects on inverter chain delay

Abstract

Sub and Fossum (1994) predicted that floating-body effects in partially depleted (PD) SOI transistors will cause the performance of a PD/SOI circuit to depend on its recent history. The voltage of the floating body affects the threshold voltage V/sub t/ which results in hysteretic dependence of leakage current and gate delay. The interactions are complex, and experimental data are needed to confirm the model and establish the significance of the effects on circuit performance. The purpose of this work is to advance understanding of hysteretic floating-body effects, the interplay of time constants involved in these processes, and their impact on circuit performance.