FIELD EFFECT NANOTRANSISTOR ON ULTRATHIN SILICON-ON-INSULATOR

2004 ◽  
Vol 03 (01n02) ◽  
pp. 155-160
Author(s):  
Yu. V. NASTAUSHEV ◽  
T. A. GAVRILOVA ◽  
M. M. KACHANOVA ◽  
O. V. NAUMOVA ◽  
I. V. ANTONOVA ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Deep Submicron ◽  
Silicon On Insulator ◽  
Conductive Channel ◽  
Low Threshold ◽  
Effect Transistor ◽  
Ultrathin Soi ◽  
High Transconductance ◽  
Bottom Gate

Peculiarities of the fabrication of field effect transistor (FET) at nanoscaled size on ultrathin silicon-on-insulator (SOI) was studied in details. Two types of FET transistor were successfully realized: in-plane-gate FET (IPGFET) with 40 nm minimum channel size and multichannel top-gate MOSFET on silicon-on-insulator. The deep submicron top-gate of Ti/Au embraces each of the conductive oxidized silicon wires placed with 400 nm pitch. The type and concentration of carries in a conductive channel of the ultrathin SOI was controlled by a bottom gate. The fabricated transistors demonstrated high transconductance and low threshold voltage. Some results of electron properties of the nano-FET transistors are presented.

scholarly journals Highly Sensitive and Selective Sodium Ion Sensor Based on Silicon Nanowire Dual Gate Field-Effect Transistor

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4213
Author(s):  
Seong-Kun Cho ◽  
Won-Ju Cho
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Silicon Nanowire ◽  
Silicon On Insulator ◽  
Sodium Ion ◽  
Ion Sensor ◽  
Highly Sensitive ◽  
Selective Membrane ◽  
Dual Gate ◽  
Effect Transistor

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.

High-transconductance p-type SiGe modulation-doped field-effect transistor

1995 ◽  
Vol 31 (8) ◽  
pp. 680 ◽  
Author(s):  
M. Arafa ◽  
K. Ismail ◽  
P. Fay ◽  
J.O. Chu ◽  
B.S. Meyerson ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Effect Transistor ◽  
High Transconductance ◽  
P Type

scholarly journals Quantum transport in a nanosize silicon-on-insulator metal-oxide-semiconductor field-effect transistor

2003 ◽  
Vol 93 (2) ◽  
pp. 1230-1240 ◽  
Author(s):  
M. D. Croitoru ◽  
V. N. Gladilin ◽  
V. M. Fomin ◽  
J. T. Devreese ◽  
W. Magnus ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Quantum Transport ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Metal Oxide Semiconductor ◽  
Silicon On Insulator ◽  
Oxide Semiconductor ◽  
Effect Transistor

scholarly journals Indication of the Coronavirus Model Using a Nanowire Biosensor

Proceedings ◽  
2020 ◽  
Vol 60 (1) ◽  
pp. 50
Author(s):  
Vladimir Generalov ◽  
Olga Naumova ◽  
Dmitry Shcherbakov ◽  
Alexander Safatov ◽  
Boris Zaitsev ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Negative Charge ◽  
Positive Charge ◽  
Silicon On Insulator ◽  
Nanowire Surface ◽  
Before And After ◽  
Effect Transistor ◽  
Current Value ◽  
Silicon On Insulator Technology

The presented results indicate virus-like particles of the coronavirus (CVP) using a nanowire (NW) biosensor based on silicon-on-insulator technology. In the experiment, we used suspensions of CVP and of specific antibodies to the virus. Measurements of the current value of the field-effect transistor before and after the introduction of the CVP on the surface of the nanowire were performed. Results showed antibody + CVP complexes on the phase section with the surface of the nanowire modulate the current of the field-effect transistor; CVP has an electrically positive charge on the phase section “nanowire surface-viral suspension»; antibody + CVP complexes have an electrically negative charge on the phase section “nanowire surface-viral suspension”; the sensitivity of the biosensor is made up of 10−18 M; the time display was 200–300 s.

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