What is FinFET?
FINFET stands for Fin Field Effect Transistor it belongs to the FET family and it is a type of Multi gate MOSFET that is used in place of a common MOSFET. Unlike regular FETs which are planar in shape, FINFET is non-planar having a 3D structure. FINFET is built on the silicon substrate and the gate is surrounded by the channel forming drain and source. The name FINFET is derived from the fin of fish as the top view of FINFET drain and source appears like fin. Fin can also be defined as the channel between the drain and the source.
Like MOSFET, FINFET is also built on silicon on an insulator (SOI) It is also a three-terminal device forming gate, drain, and source, and the fabrication of FINFET is similar to MOSFET. FINFET and MOSFET work on the same principle.
FinFET
Semiconductor Industry is a very dynamic industry as it changes from time to time. As per Moore’s Law, the number of transistors present in a chip doubles every 18 months or 2 years. So the size of chips and electronic device get smaller and smaller. The introduction of FinFET technology in the semiconductor industry played a crucial role.
FinFET is a non-planar transistor that has replaced common planar MOSFET. The Introduction of FinFET not only overcame the challenges of common MOSFET but also helped to make the size of the electronic device compact due to its 3D and fin-shaped vertical structure. FinFET has been widely used in mobile, laptops, and IoT devices due to energy efficiency, fast switching speed, and various such advantages.