Impact of buried oxide thickness in substrate-gate integrated silicon nanowire field-effect transistor biosensor performance for charge sensing

2021 ◽  
Author(s):  
Y. M. Tan ◽  
M. F. M. Fathil ◽  
M. N. M. Nuzaihan ◽  
N. Sabani ◽  
X. Y. Teoh ◽  
...  
2021 ◽  
Author(s):  
Parveen Kumar ◽  
Balwinder Raj

This paper analyses the different parameters of tunnel field-effect transistor (TFET) based on silicon Nanowire in vertical nature by using a Gaussian doping profile. The device has been designed using an n-channel P+-I-N+ structure for tunneling junction of TFET with gate-all-around (GAA) Nanowire structure. The gate length has been taken as 100 nm using silicon Nanowire to obtain the various parameters such as ON-current (ION), OFF-current (IOFF), current ratio, and Subthreshold slope (SS) by applying different values of work function at the gate, the radius of Nanowire and oxide thickness of the device. The simulations are performed on Silvaco TCAD which gives a better parametric analysis over conventional tunnel field-effect transistor.


2019 ◽  
Vol 66 (9) ◽  
pp. 3994-4000 ◽  
Author(s):  
Xi Chen ◽  
Si Chen ◽  
Shi-Li Zhang ◽  
Paul Solomon ◽  
Zhen Zhang

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4213
Author(s):  
Seong-Kun Cho ◽  
Won-Ju Cho

In this study, a highly sensitive and selective sodium ion sensor consisting of a dual-gate (DG) structured silicon nanowire (SiNW) field-effect transistor (FET) as the transducer and a sodium-selective membrane extended gate (EG) as the sensing unit was developed. The SiNW channel DG FET was fabricated through the dry etching of the silicon-on-insulator substrate by using electrospun polyvinylpyrrolidone nanofibers as a template for the SiNW pattern transfer. The selectivity and sensitivity of sodium to other ions were verified by constructing a sodium ion sensor, wherein the EG was electrically connected to the SiNW channel DG FET with a sodium-selective membrane. An extremely high sensitivity of 1464.66 mV/dec was obtained for a NaCl solution. The low sensitivities of the SiNW channel FET-based sodium ion sensor to CaCl2, KCl, and pH buffer solutions demonstrated its excellent selectivity. The reliability and stability of the sodium ion sensor were verified under non-ideal behaviors by analyzing the hysteresis and drift. Therefore, the SiNW channel DG FET-based sodium ion sensor, which comprises a sodium-selective membrane EG, can be applied to accurately detect sodium ions in the analyses of sweat or blood.


ACS Sensors ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 427-433 ◽  
Author(s):  
Xi Chen ◽  
Si Chen ◽  
Qitao Hu ◽  
Shi-Li Zhang ◽  
Paul Solomon ◽  
...  

2008 ◽  
Vol 1144 ◽  
Author(s):  
Pranav Garg ◽  
Yi Hong ◽  
Md. Mash-Hud Iqbal ◽  
Stephen J. Fonash

ABSTRACTRecently, we have experimentally demonstrated a very simply structured unipolar accumulation-type metal oxide semiconductor field effect transistor (AMOSFET) using grow-in-place silicon nanowires. The AMOSFET consists of a single doping type nanowire, metal source and drain contacts which are separated by a partially gated region. Despite its simple configuration, it is capable of high performance thereby offering the potential of a low manufacturing-cost transistor. Since the quality of the metal/semiconductor ohmic source and drain contacts impacts AMOSFET performance, we repot here on initial exploration of contact variations and of the impact of thermal process history. With process optimization, current on/off ratios of 106 and subthreshold swings of 70 mV/dec have been achieved with these simple devices


Materials ◽  
2018 ◽  
Vol 11 (5) ◽  
pp. 785 ◽  
Author(s):  
Duy Tran ◽  
Thuy Pham ◽  
Bernhard Wolfrum ◽  
Andreas Offenhäusser ◽  
Benjamin Thierry

2018 ◽  
Author(s):  
M. F. M. Fathil ◽  
M. H. M. Ghazali ◽  
M. K. Md Arshad ◽  
M. Nuzaihan M. N. ◽  
Sh. Nadzirah ◽  
...  

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