A Review of CNTFET Technology over CMOS Technology for Low Power Applications

Abstract

In recent years, the scalability of silicon beyond the nano regime is quite difficult so there must be an alternative to replace the silicon in the VLSI industries. CNT may be the most promising material to replace silicon technology. Much potential application of CNTFETs to realize digital logic gates. Many potential applications have been proposed for carbon nanotubes, including conductive and high strength composites, energy storage and energy conversion devices, sensor, field emission display, nanometer-sized semiconductor devices, probes, and interconnects. CNTFETs are sensitive to a wide range of alcoholic vapors so there is the possibility of a chemical sensor based on carbon nanotube and exhibit excellent properties of transducer. CNTFETs conducting channels have been developed and can be used for biosensing and detection. CNTFET has been used in hybrid nanotechnology applications where possibilities to integrate CNT fabrication with standard commercial CMOS very large scale integration on a single substrate suitable for emerging hybrid technology applications. CNT has been used to enhance the performance of the Operational Transconductance Amplifier.