Abstract
This work realises a hetero-dielectric buried oxide vertical tunnel held effect transistor (HDB VTFET) and investigates its radio frequency (RF) and linearity characteristics. First time, the concept of hetero-dielectric buried oxide (BOX) in VTFET is used to obtain the superior improvement in terms of different RF and linearity hgure of merits such as C gs , C gd , C gg , f T , Gain Bandwidth Product (GBP), t, Transconductance Frequency Product (TFP), Transconductance Generation Factor (TGF), g m2 , g m3 , VIP 2 , VIP 3 , IIP 3 , IMD 3 and 1-dB compression point. Also, the influence of HfO2 BOX length scaling on these FOMs is analysed. The results reveal that the HDB VTFET can be a promising contender to replace bulk metal-oxide semiconductor held-effect transistors in analogue/mixed signal system-on-chip and high-frequency microwave applications and the accuracy of this device is validated by TCAD Sentaurus simulator.
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