Steep switching characteristics of single-gated feedback field-effect transistors

Abstract

In this study, we propose newly designed feedback field-effect transistors that utilize the. positive feedback of charge carriers in single-gated silicon channels to achieve steep switching behaviors. The band diagram, I-V characteristics, subthreshold swing, and on/off current ratio are analyzed using a commercial device simulator. Our proposed feedback field-effect transistors exhibit subthreshold swings of less than 0.1 mV dec(-1), an on/off current ratio of approximately 10(11), and an on-current of approximately 10(-4) A at room temperature, demonstrating that the switching characteristics are superior to those. of other silicon-based devices. In addition, the device parameters that affect the device performance, hysteresis characteristics, and temperature-dependent device characteristics are discussed in detail.