Performance Comparison of 2.5-GHz LC Voltage-Controlled Oscillator for Three Different Technology Nodes

2019 ◽  
Author(s):  
Shrabanti Das ◽  
Sayan Chatterjee
Keyword(s):  
Performance Comparison ◽  
Voltage Controlled Oscillator ◽  
Technology Nodes

Power Efficient Implementation of Low Noise CMOS LC VCO using 32nm Technology for RF Applications

2018 ◽  
Vol 6 (8) ◽  
pp. 53
Author(s):  
Shitesh Tiwari ◽  
Sumant Katiyal ◽  
Parag Parandkar
Keyword(s):  
Power Consumption ◽  
Phase Noise ◽  
Tuning Range ◽  
Low Voltage ◽  
Performance Comparison ◽  
Low Noise ◽  
Center Frequency ◽  
Voltage Controlled Oscillator ◽  
Low Phase Noise ◽  
Lc Vco

Voltage Controlled Oscillator (VCO) is an integral component of most of the receivers such as GSM, GPS etc. As name indicates, oscillation is controlled by varying the voltage at the capacitor of LC tank. By varying the voltage, VCO can generate variable frequency of oscillation. Different VCO Parameters are contrasted on the basis of phase noise, tuning range, power consumption and FOM. Out of these phase noise is dependent on quality factor, power consumption, oscillation frequency and current. So, design of LC VCO at low power, low phase noise can be obtained with low bias current at low voltage.  Nanosize transistors are also contributes towards low phase noise. This paper demonstrates the design of low phase noise LC VCO with 4.89 GHz tuning range from 7.33-11.22 GHz with center frequency at 7 GHz. The design uses 32nm technology with tuning voltage of 0-1.2 V. A very effective Phase noise of -114 dBc / Hz is obtained with FOM of -181 dBc/Hz. The proposed work has been compared with five peer LC VCO designs working at higher feature sizes and outcome of this performance comparison dictates that the proposed work working at better 32 nm technology outperformed amongst others in terms of achieving low Tuning voltage and moderate FoM, overshadowed by a little expense of power dissipation. 

Post Extension Ion Implant Photo Resist Strip for 32 nm Technology and beyond

2009 ◽  
Vol 145-146 ◽  
pp. 253-256 ◽  
Author(s):  
G. Mannaert ◽  
L. Witters ◽  
Denis Shamiryan ◽  
Werner Boullart ◽  
K. Han ◽  
...  
Keyword(s):  
Sheet Resistance ◽  
State Of The Art ◽  
Substrate Oxidation ◽  
Performance Comparison ◽  
Low Energy ◽  
Advanced Technology ◽  
Process Conditions ◽  
Threshold Voltages ◽  
Dopant Loss ◽  
Technology Nodes

The most advanced technology nodes require ultra shallow extension implants (low energy) which are very vulnerable to ash related substrate oxidation, silicon and dopant loss, which can result in a dramatic increase of the source/drain resistance and shifted transistor threshold voltages. A robust post extension ion implant ash process is required in order to meet cleanliness, near zero Si loss and dopant loss specifications. This paper discusses a performance comparison between fluorine-free, reducing and oxidizing, ash chemistries and “as implanted – no strip” process conditions, for both state-of-the-art nMOS and pMOS implanted fin resistors. Fluorine-free processes were chosen since earlier experiments with fluorine containing plasma strips exhibited almost a 10x increase in sheet resistance in the worse case.

Performance Comparison of s-Si, In0.53Ga0.47As, Monolayer BP, and WS2-Based n-MOSFETs for Future Technology Nodes—Part I: Device-Level Comparison

2019 ◽  
Vol 66 (8) ◽  
pp. 3608-3613
Author(s):  
Tarun Kumar Agarwal ◽  
Martin Rau ◽  
Iuliana Radu ◽  
Mathieu Luisier ◽  
Wim Dehaene ◽  
...  
Keyword(s):  
Performance Comparison ◽  
Future Technology ◽  
Technology Nodes

scholarly journals Performance Comparison of s-Si, In0.53Ga0.47As, Monolayer BP- and WS2-Based n-MOSFETs for Future Technology Nodes—Part II: Circuit-Level Comparison

2019 ◽  
Vol 66 (8) ◽  
pp. 3614-3619
Author(s):  
Tarun Kumar Agarwal ◽  
Martin Rau ◽  
Iuliana Radu ◽  
Mathieu Luisier ◽  
Wim Dehaene ◽  
...  
Keyword(s):  
Performance Comparison ◽  
Future Technology ◽  
Technology Nodes

Direct ammonia fueled solid oxide fuel cells: A comprehensive review on challenges, opportunities and future outlooks

2020 ◽  
pp. 70-91 ◽  
Author(s):  
Molla Asmare ◽  
Mustafa Ilbas
Keyword(s):  
Electric Power ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Performance Comparison ◽  
Optimum Operating ◽  
Practical Implementation ◽  
Human Society ◽  
Energy Access ◽  
Green Fuel

Nowadays, the most decisive challenges we are fronting are perfectly clean energy making for equitable and sustainable modern energy access, and battling the emerging alteration of the climate. This is because, carbon-rich fuels are the fundamental supply of utilized energy for strengthening human society, and it will be sustained in the near future. In connection with this, electrochemical technologies are an emerging and domineering tool for efficiently transforming the existing scarce fossil fuels and renewable energy sources into electric power with a trivial environmental impact. Compared with conventional power generation technologies, SOFC that operate at high temperature is emerging as a frontrunner to convert the fuels chemical energy into electric power and permits the deployment of varieties of fuels with negligible ecological destructions. According to this critical review, direct ammonia is obtained as a primary possible choice and price-effective green fuel for T-SOFCs. This is because T-SOFCs have higher volumetric power density, mechanically stable, and high thermal shocking resistance. Also, there is no sealing issue problem which is the chronic issues of the planar one. As a result, the toxicity of ammonia to use as a fuel is minimized if there may be a leakage during operation. It is portable and manageable that can be work everywhere when there is energy demand. Besides, manufacturing, onboard hydrogen deposition, and transportation infrastructure connected snags of hydrogen will be solved using ammonia. Ammonia is a low-priced carbon-neutral source of energy and has more stored volumetric energy compared with hydrogen. Yet, to utilize direct NH3 as a means of hydrogen carrier and an alternative green fuel in T-SOFCs practically determining the optimum operating temperatures, reactant flow rates, electrode porosities, pressure, the position of the anode, thickness and diameters of the tube are still requiring further improvement. Therefore, mathematical modeling ought to be developed to determine these parameters before planning for experimental work. Also, a performance comparison of AS, ES, and CS- T-SOFC powered with direct NH3 will be investigated and best-performed support will be carefully chosen for practical implementation and an experimental study will be conducted for verification based on optimum parameter values obtained from numerical modeling.

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