scispace - formally typeset
Search or ask a question

Answers from top 10 papers

More filters
Papers (10)Insight
insulated gate bipolar transistors and diodes when compared with the existing MLI topologies, which significantly reduces the size and cost of the inverter.
The proposed structures reduce the number of the transistors considerably and have very high driving capability.
If the switching devices of the inverter are insulated-gate bipolar transistors or bipolar junction transistors, this modulation strategy turns out to be the one with the minimum total power losses.
A split-gate device structure enables ambipolar transistors operating in a controlled unipolar mode (both p-type and n-type), resulting in superior inverter characteristics.
Proceedings ArticleDOI
12 Nov 2015
25 Citations
Simulations and experimental results have proved the validity of the proposed inverter.
Utilization of two different dielectrics enables each of the two transistors to behave as a drive and load transistor for the inverter.
And the calculated results demonstrate LTFET is more optimization for inverter circuit design in the novel generation transistors.
The principle described in the paper can be easily extended to an inverter with higher number of levels.
We have also demonstrated a light-emitting inverter by combining two LEFETs into the inverter architecture.
By implementing n-type and p-type transistors in one device, a complimentary inverter based solely on SAMFETs is demonstrated for the first time.

See what other people are reading

What is advantage of immunosensor?
5 answers
Immunosensors offer several advantages over conventional methods for pathogen and toxin detection. They do not require highly trained personnel for operation, are quick, highly selective, and sensitive, and have the potential to significantly enhance diagnostic processes. In the case of Rituximab (RTX) monitoring, immunosensors provide a feasible alternative to chromatographic methods and immunoassays, offering affordability, label-free detection, and high sensitivity for on-site monitoring. Moreover, in the context of SARS-CoV-2 detection, immunosensors demonstrate high performance in terms of rapid and precise virus detection, without the need for polymerase chain reaction tests or labeling, showcasing their potential for efficient and accurate diagnostics. Overall, immunosensors present a promising solution for various detection applications due to their speed, sensitivity, selectivity, and ease of use.
What are the minimum mask steps required to make a functional pMOS?
5 answers
To create a functional pMOS transistor with reduced masking steps, the process involves utilizing a minimum number of critical masks. By forming conductive gate/insulator layer stacks on different conductivity portions of a semiconductor substrate and implementing disposable outer sidewall spacers, heavy and light source/drain implantations of opposite conductivity types can be performed with only two critical masks, reducing production costs and duration while increasing manufacturing throughput. Additionally, a method involves forming Sigma-shaped grooves in sidewalls and filling them with crushing stress materials to enhance the transistor's channel region. This streamlined approach allows for the efficient formation of pMOS transistors with improved performance.
Why does the resonant frequency change in an inverter with an LCL filter installed?
5 answers
The resonant frequency in an inverter with an LCL filter can change due to various factors. The LCL filter, although advantageous for better attenuation of inverter switching harmonics, is susceptible to resonance with the grid, potentially causing stability issues in the power system. Grid impedance variations can lead to the drift of the resonant frequency, further impacting system robustness and control performance. To address this, adaptive extremum seeking control (AESC) and extremum seeking control-based resonant frequency estimation schemes have been proposed to estimate and track the resonant frequency online, ensuring system stability and performance. These methods offer low computational complexity, enabling effective resonant frequency estimation without burdening the normal inverter controller operation.
What is the quantum confinement effect?
10 answers
The quantum confinement effect is a phenomenon observed in semiconductor materials, where the electronic and optical properties of the material are significantly altered due to the spatial confinement of charge carriers (electrons and holes) within dimensions that are comparable to the de Broglie wavelength of the carriers. This confinement leads to the discretization of energy levels, a departure from the continuous energy bands found in bulk materials. In practical terms, quantum confinement can manifest in various forms depending on the dimensionality of the confinement: in one dimension as quantum wells, in two dimensions as quantum wires, and in three dimensions as quantum dots (QDs). Each form of confinement restricts the motion of charge carriers in one or more dimensions, leading to distinct changes in the material's physical properties. For instance, quantum dots, which exhibit three-dimensional confinement, show size-dependent optical and electronic properties because the energy levels of the dots can be tuned by changing their size. This tunability is crucial for applications in near-field thermal radiation, light-emitting diodes (LEDs), and thin-film transistors. Quantum confinement effects are not only limited to altering electronic and optical properties but also influence the thermodynamic behavior of materials. For example, specific heat can exhibit unique features under spatial confinement, indicating phase transitions at certain temperatures. Moreover, the effect plays a significant role in enhancing the performance of semiconductors by tuning defect levels through strategies like hydrogen doping in nanostructures, thereby optimizing their electronic applications. Furthermore, quantum confinement can lead to the observation of quantum confinement effects in disordered materials, such as amorphous thin-film transistors, where it affects the field-effect mobility and device characteristics. It also impacts the linewidth broadening in metal halide perovskites, suggesting that quantum confinement is not a limiting factor in achieving ultrahigh color purity in next-generation LEDs. Additionally, the effect is evident in the blue shift of energy gaps in thin films, confirming its presence through spectroscopy experiments. In summary, the quantum confinement effect is a fundamental phenomenon that significantly influences the physical properties of nanostructured materials, with wide-ranging implications for electronic, optical, and thermodynamic applications.
What is the number of studies on memcapacitor emulator in the literature?
5 answers
There are five studies on memcapacitor emulators in the literature. These studies propose innovative designs for memcapacitor emulators using various components such as current feedback amplifiers, analog multipliers, resistors, and capacitors. The emulators are designed to operate at high frequencies, exhibit non-volatility behavior, and are robust against mismatch and process variations. Additionally, the studies demonstrate the expandability of memcapacitor circuits using memristors and mutators, enabling the construction of complex circuit configurations. The proposed emulators have been validated through simulations, experimental verifications, and post-layout analyses, showcasing their efficiency, low power consumption, and applicability in practical applications like neuromorphic computing.
What happened to the portions of the volcano that were removed?
5 answers
Portions of the volcano that were removed during clean-up efforts after eruptions or due to debris avalanches underwent various transformations. In the case of volcanic clean-up efforts, tephra deposits were removed from affected areas, with uncertainties in estimating the volume and duration of clean-up operations due to observational errors and natural variance in deposit thickness. On the other hand, debris avalanches led to the permanent alteration of the landscape, with the debris avalanche from Mount Ruapehu in New Zealand resulting in the isolation of the river catchment from the volcano due to incision by the Whangaehu River and regional faulting, forming a distinctive plateau in the valley. These removal processes and subsequent landscape changes highlight the dynamic interactions between volcanic events and the surrounding environment.
What are good papers that explain the delta method of minimizing offset thermal EMFs?
5 answers
The delta method for minimizing offset thermal EMFs is well explained in the paper by Rodenbeck et al., where they introduce a technique called "delta modulation" (DM) to improve the sensitivity of RF subsamplers in radar and coherent receiver applications. This method involves feeding the time-average output of a monobit analog-to-digital converter (ADC) back to the ADC input with opposite polarity to correct for aggregate DC offsets, enhancing ADC sensitivity. The paper demonstrates the effectiveness of analog and digital DM circuits in correcting output quantization imbalance, even under varying temperature conditions, and improving baseband spectrum quality for realistic radar applications. The DM technique does not impact ADC linearity, as confirmed through two-tone testing.
Why there was a need of deep ultra violet transparent conducting oxides?
4 answers
The need for deep ultraviolet (DUV) transparent conducting oxides (TCOs) arises from the demand for highly efficient optoelectronic devices operating in the DUV spectrum. Various materials have been explored to meet this need. Rutile Sn1–xGexO2 (SGO) thin films, La-doped SrSnO3 (SLSO) films, and Si-doped Ga2O3 (SGO) thin filmshave been developed as promising candidates for DUV-TCOs due to their high conductivity, transparency, and wide band gaps. These materials exhibit excellent electrical, structural, and optical properties, making them suitable for applications in DUV-LEDs, photovoltaic cells, and other optoelectronic devices requiring transparency in the DUV region. The advancements in DUV-TCOs pave the way for enhanced performance and efficiency in next-generation optoelectronics and semiconductor devices.
How transparent oxides can be used as gate dielectric?
5 answers
Transparent oxides can be utilized as gate dielectrics in various applications. For instance, in the study by Alshammari et al., a novel process was developed to fabricate thin film transistors (TFTs) using a binary oxide, Hf x Zn1- x O2- δ (HZO), for all transistor layers, including the gate and dielectric layers. This approach allowed for tuning the electronic properties of the oxide from conducting to insulating by adjusting the chemical precursors' flow ratio. Additionally, the work by ViolBarbosa et al. demonstrated that ionic liquid gating can induce a metallic phase in insulating films of WO3, altering the material's conductivity while maintaining transparency in the visible range. These studies highlight the versatility of transparent oxides in serving as gate dielectrics with tunable electronic properties for various electronic devices.
How has HELICS been used for co-simulation?
5 answers
HELICS has been utilized for co-simulation in the context of integrating various power system components for accurate analysis. The framework combines commercial transmission system solvers like PSS/E with distribution system solvers such as GridLAB-D using Python interfaces, enabling multi-timescale Transmission and Distribution (T&D) co-simulation. Additionally, HELICS has been integrated with Network Simulator 3 (NS3) to create a cyber-physical-energy co-simulation platform for monitoring and controlling Distributed Energy Resources (DERs) through smart grid communications. This integration allows for the development of a high-performance distribution-communication co-simulation framework, facilitating DER coordination and enhancing the understanding of the interdependency between power system components in modern smart grids.
What are the technical specifications that distinguish grid-forming inverters from grid-following inverters?
5 answers
Grid-forming inverters (GFMIs) differ from grid-following inverters (GFLIs) in their control mechanisms. GFMIs operate as voltage sources, controlling the magnitude and angle of the point of common coupling (PCC) voltage to manage active and reactive power transfer across a line. In contrast, GFLIs function as current sources. GFMIs face challenges in independently controlling active and reactive power due to the coupling between these parameters, especially with increasing grid impedance and power angle differences. To address this, a novel multivariable controller has been proposed to completely decouple active and reactive power loops in GFMIs, enhancing their performance. Additionally, GFMIs can regulate both frequency and voltage at the PCC, mimicking synchronous generators, while GFLIs may experience fluctuations as inverter penetration rises.