DIBL impacts MOSFET performance in several ways. Firstly, it can lead to increased leakage currents, as the lower barrier allows more carriers to flow from the source to the drain even when the transistor is supposed to be off. Secondly, it reduces the threshold voltage, making the device harder to control. This reduction affects the device’s switching characteristics, leading to issues in digital circuits where precise control of the on/off state is crucial.
