Field-effect sensors–from pH sensing to biosensing: sensitivity enhancement using streptavidin–biotin as a model system

BM Lowe, K Sun, I Zeimpekis, CK Skylaris, NG Green - Analyst, 2017 - pubs.rsc.org
Field-Effect Transistor sensors (FET-sensors) have been receiving increasing attention for
biomolecular sensing over the last two decades due to their potential for ultra-high sensitivity …

A physical model for drift in pH ISFETs

S Jamasb, S Collins, RL Smith - Sensors and Actuators B: Chemical, 1998 - Elsevier
A physical model is presented which quantitatively describes the threshold voltage
instability, commonly known as drift, in n-channel Si3N4-gate and as well as Al2O3-gate pH …

Temperature and temporal drift compensation for Al2O3-gate ISFET-based pH sensor using machine learning techniques

S Sinha, R Bhardwaj, N Sahu, H Ahuja, R Sharma… - Microelectronics …, 2020 - Elsevier
This work presents modeling of temperature and temporal drift characteristics of Al 2 O 3-
gate Ion-Sensitive Field-Effect Transistor (ISFET) and performance enhancement of ISFET …

Counteracting threshold-voltage drift in ion-selective field effect transistors (ISFETs) using threshold-setting ion implantation

A Elyasi, M Fouladian, S Jamasb - IEEE Journal of the Electron …, 2018 - ieeexplore.ieee.org
Ion-selective field effect transistors (ISFETs) exhibit instability, commonly known as drift, in
the form of a slow, monotonic, temporal increase in the threshold voltage of the device. A …

Extended Gate Ion-Sensitive Field-Effect Transistors Using Al2O3/Hexagonal Boron Nitride Nanolayers for pH Sensing

W Wei, Z Zeng, W Liao, WK Chim… - ACS Applied Nano …, 2019 - ACS Publications
A stack consisting of atomic layer deposited (ALD) aluminum oxide (Al2O3) and hexagonal
boron nitride (h-BN) is proposed and demonstrated as the sensing layer of extended gate …

A novel pH-dependent drift improvement method for zirconium dioxide gated pH-ion sensitive field effect transistors

KM Chang, CT Chang, KY Chao, CH Lin - Sensors, 2010 - mdpi.com
A novel compensation method for Zirconium dioxide gated Ion Sensitive Field Effect
Transistors (ISFETs) to improve pH-dependent drift was demonstrated. Through the …

[PDF][PDF] CMOS ISFET device for DNA sequencing: device compensation, application requirements and recommendations

AM Dinar, ASM Zain, F Salehuddin - Int. J. Appl. Eng. Res, 2017 - academia.edu
Ion sensitive field-effect transistor in DNA sequencing application is gaining popularity
because of its capability to work massive parallel sensor arrays, especially when integrated …

Chemical and morphological characteristics of ALD Al2O3 thin-film surfaces after immersion in pH buffer solutions

JM Reyes, BMP Ramos, CZ Islas… - Journal of The …, 2013 - iopscience.iop.org
The chemical and morphological properties of thin aluminum oxide film surfaces (Al 2 O 3
having 10 nm in thickness) in the as-deposited (dry) and after immersion (in pH buffer …

Modeling and simulation of temporal and temperature drift for the development of an accurate ISFET SPICE macromodel

S Sinha, N Sahu, R Bhardwaj, H Ahuja… - Journal of …, 2020 - Springer
Modeling of non-idealities in ion-sensitive field-effect transistors (ISFET) is crucial for
obtaining precise pH-sensing characteristics. This paper presents an accurate Simulation …

Current-mode signal enhancement in the ion-selective field effect transistor (ISFET) in the presence of drift and hysteresis

S Jamasb - IEEE Sensors Journal, 2020 - ieeexplore.ieee.org
The accuracy of the ion-selctive field effect transistor (ISFET) is limited by errors ascribed to
drift and hysteresis. In this work operation of the ISFET as a stand-alone pH sensor …