Beyond TFET: Alternative mechanisms for CMOS-compatible sharp-switching devices

Tunneling-based transistors (TFETs) have attracted interest due to their (theoretical) capability of switching more sharply than MOSFETs. However, other mechanisms that take place in SOI devices can provide even more abrupt switching and higher current. We examine the family of emerging TFET-competing devices based on barrier modulation, bipolar amplification and impact ionization. Practical results for devices fabricated in 14–28 nm FDSOI technology will be discussed.