Among the factors determining the maximum frequency of MCUs, the selection of the transistor threshold voltage—specifically the use of HVT, SVT, and LVT—is a core trade-off at the chip design level. 1. Basic Concept: What is Threshold Voltage? Threshold voltage is the gate voltage required to switch a transistor (MOSFET) from the “off” state to … Read more
Definition of Threshold Voltage The threshold voltage, also known as the turn-on voltage, is one of the key parameters of MOS devices. It defines the minimum gate bias required to form a conductive channel between the source and drain, even when the substrate surface (the semiconductor surface) is strongly inverted, which requires the gate voltage … Read more
Continuing from the previous article on MOSFETs, this one will still take the enhanced NMOS as an example. We know that NMOS operates in several regions: cutoff region, linear region, saturation region, and breakdown region. The operating current of the MOSFET is related to the threshold voltage Vth. So, what parameters are related to the … Read more