N CHANNEL AND P CHANNEL MOSFET

The N-channel MOSFETs are abbreviated as NMOS and are symbolically represented as shown in the figure below:

The N-Channel MOSFET has an N- channel region located in between the source and drain terminals. It is a four-terminal device having the terminals as gate, drain, source, body. In this type of Field Effect Transistor, the drain and source are heavily doped n+ region and the substrate or body are of P-type.

Similarly, the P-channel MOSFETs are abbreviated as PMOS and are symbolically represented as follows:

The P- channel MOSFET has a P- Channel region located in between the source and drain terminals. It is a four-terminal device having the terminals as gate, drain, source, and body. The drain and source are heavily doped p+ region and the body or substrate is of n-type. The flow of current is in the direction of positively charged holes.