What Does Vertical Metal Oxide Semiconductor (VMOS) Mean?
A vertical metal oxide semiconductor (VMOS) is a type of metal oxide semiconductor (MOS) transistor, so named because of the V-shaped groove which is vertically cut into the substrate to act as the gate of the transistor to allow the delivery of a higher amount of current coming from the source towards the “drain” of the device.
Techopedia Explains Vertical Metal Oxide Semiconductor (VMOS)
A vertical metal oxide semiconductor is constructed by forming four different diffused layers in silicon and then etching a V-shaped groove in the middle vertically at a precisely controlled depth through the layers. The gate electrode is then formed within the V-shaped groove by depositing metal, usually gallium nitride (GaN), over silicon dioxide in the groove.
