State-of-the-art Analysis of Single Electron Transistor

The fabrication technology has nearly reached its limit for MOS feature size, beyond which additional channel scaling is not possible for practical uses. Therefore, the Single Electron Transistor (SET) might be considered as a possible future of complex IC fabrication, as it replaces MOS technology with a remarkably small quantum dot or island instead of a channel. The Coulomb blockade principle, which is the heart of SET technology, governs its operation. For improved effectiveness at scaled technology nodes, SET could be coupled with the commonly used complementary metal-oxide semiconductor (CMOS) technology. The SET is a unique nanoscale device that manipulates and detects individual electrons by taking advantage of the quantized nature of charge. This study deals with the principles, recent improvements, and various applications of the SET such as quantum computing, low-temperature physics, etc.