E-MOSFET

This figure shows the details construction of N-channel E-MOSFET.Gate formation of N-channel E-MOSFET is similar to the N-channel D-MOSFET.This E-MOSFET can be worked in only enhancement mode operation.So this MOSFET is called enhancement MOSFET or E-MOSFET. In this E-MOSFET has no conducting channel between two terminal ,source terminal and gate terminal.Where as in the D-MOSFET has conducting channel between these two terminal,source and gate.We know that substrate of P-type semiconductor material extends one side to another side of the E-MOSFET.But silicon dioxide layer are deposited left side of the E-MOSFET and gate terminal is taken out from this layer .So there is no conducting channel exists.There is needed to form conducting channel or induced channel.To accomplished this task E-MOSFET requires a proper amounts of gate terminal potential (i.e voltage).E-MOSFET have also three terminal, such as gate terminal,source terminal and drain terminal.We noted that E-MOSFET details construction is quite similar to that of the D-MOSFET.Where as there is absence of conducting channel in E-MOSFET.