Investigation of Scaling on the Sensitivity and Performance of Tunnel FET Biosensor

This research investigates the scaling capability of the dopingless Tunnel FET (TFET) biosensor. A counter-doped Si 0.65 Ge 0.35 pocket and a tunnel gate-engineered structure are incorporated to improve the performance of the proposed biosensor in the presence of Trap-Assisted-Tunneling (TAT). The e...

Full description

Saved in:
Bibliographic Details
Published in:IEEE sensors letters 2023-08, Vol.7 (8), p.1-4
Main Authors: Priyanka, Rana, Ashwani K.
Format: Article
Language:English
Subjects:
Biosensors
Counter-doped Si<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">0.65 Ge<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">0.35 pocket
dopingless Tunnel FET biosensor
Logic gates
Molecular biophysics
Performance enhancement
Scaling
scaling capability
Sensitivity
Sensors
TFETs
Threshold voltage
Tunneling
Tunnels
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This research investigates the scaling capability of the dopingless Tunnel FET (TFET) biosensor. A counter-doped Si 0.65 Ge 0.35 pocket and a tunnel gate-engineered structure are incorporated to improve the performance of the proposed biosensor in the presence of Trap-Assisted-Tunneling (TAT). The effect of the scaling is examined in respect of the gate length, body thickness, and the underlap length between the gate and the drain to note the performance of the biosensor. The study shows that scaling the gate length improves the sensitivity metrics such as threshold voltage sensitivity and on-current sensitivity of the biosensor while sacrificing I on /I off within acceptable limits according to ITRS guidelines. In addition to this, other important metrics such as I on /I off ratio, drain-induced barrier thinning, and on-current are also considered to analyze the scaling capability of the proposed biosensor.
ISSN:2475-1472
2475-1472
DOI:10.1109/LSENS.2023.3296346