It is defined as the voltage at which there is no charge on the capacitor plates and hence there is no static electric field across the oxide. The flat band voltage is an important term related to the MOS capacitor. The value of MOS capacitor depends on the region of operation.A capacitor is formed when two conducting layers are separated by a dielectric layer. An MOS capacitor is made of a semiconductor body or substrate, an insulator film, such as SiO2, and a metal electrode called a gate. Another region inverse active region is of less importance in practice. Common Base (CB) amplifier, Common Emitter (CE) amplifier and Common Emitter (CE) amplifier. There are three types of operating modes of amplifier i.e.
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