Analog performance of self-cascode SOI nanowires nMOSFETs aiming at low-power applications

Author(s):  
R. Assalti ◽  
M. de Souza ◽  
M. Casse ◽  
S. Barraud ◽  
G. Reimbold ◽  
...  
2014 ◽  
Vol 23 (08) ◽  
pp. 1450108 ◽  
Author(s):  
VANDANA NIRANJAN ◽  
ASHWANI KUMAR ◽  
SHAIL BALA JAIN

In this work, a new composite transistor cell using dynamic body bias technique is proposed. This cell is based on self cascode topology. The key attractive feature of the proposed cell is that body effect is utilized to realize asymmetric threshold voltage self cascode structure. The proposed cell has nearly four times higher output impedance than its conventional version. Dynamic body bias technique increases the intrinsic gain of the proposed cell by 11.17 dB. Analytical formulation for output impedance and intrinsic gain parameters of the proposed cell has been derived using small signal analysis. The proposed cell can operate at low power supply voltage of 1 V and consumes merely 43.1 nW. PSpice simulation results using 180 nm CMOS technology from Taiwan Semiconductor Manufacturing Company (TSMC) are included to prove the unique results. The proposed cell could constitute an efficient analog Very Large Scale Integration (VLSI) cell library in the design of high gain analog integrated circuits and is particularly interesting for biomedical and instrumentation applications requiring low-voltage low-power operation capability where the processing signal frequency is very low.


2019 ◽  
Vol 92 ◽  
pp. 104602 ◽  
Author(s):  
K. Hari Kishore ◽  
V. Senthil Rajan ◽  
R. Sanjay ◽  
B. Venkataramani

2013 ◽  
Vol E96.C (6) ◽  
pp. 859-866
Author(s):  
Hao ZHANG ◽  
Mengshu HUANG ◽  
Yimeng ZHANG ◽  
Tsutomu YOSHIHARA

2018 ◽  
Vol 13 (2) ◽  
pp. 1-7
Author(s):  
Rafael Assalti ◽  
Denis Flandre ◽  
Michelly De Souza

This paper assesses the DC analog performance of a composite transistor named Asymmetric Self-Cascode structure, which is formed by two Fully Depleted SOI nMOSFETs connected in series with shortened gates. The influence of geometrical parameters, such as different channel widths and lengths on the transistors at source and drain sides is evaluated through three-dimensional numerical simulations, which have been firstly adjusted to the experimental measurements. The transconductance, output conductance, Early voltage and intrinsic voltage gain have been used as figure of merit to explore the advantages of the composite transistor. From the obtained results, the largest intrinsic voltage gain has been obtained by using longer channel lengths for both transistors, with narrower device close to the source and wider transistor near to the drain.


2022 ◽  
Author(s):  
Harshit Kansal ◽  
Aditya S Medury

<div>In this letter, through TCAD simulations, we show that the introduction of a thin paraelectric (PE) layer between the ferroelectric (FE) and dielectric (DE) layers in an MFIS structure, expands the design space for the FE layer enabling hysteresis-free and steep subthreshold behavior, even with a thicker FE layer. This can be explained by analyzing the FE-PE stack from a capacitance perspective where the thickness of the PE layer in the FE-PE stack has the effect of reducing the FE layer thickness, while also reducing the remnant polarization. Finally, for the same FE-PE-DE stack, analog performance parameters such as $\frac{g_{m}} g_{ds}}$ and $\frac{g_{m}}{I_{d}}$ are analyzed, showing good characteristics over a wide range of gate lengths, at low drain voltages, thus demonstrating applicability for low power applications.</div>


2017 ◽  
Vol 32 (9) ◽  
pp. 095005
Author(s):  
Rodrigo T Doria ◽  
Denis Flandre ◽  
Renan Trevisoli ◽  
Michelly de Souza ◽  
Marcelo A Pavanello

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