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We have investigated the spectrum of discrete electronic states in single, nm-scale Al particles incorporated into new tunneling transistors, complete with a gate electrode. The addition of the gate has allowed (a) measurements of the…

介观与纳米尺度物理 · 物理学 2009-10-30 D. C. Ralph , C. T. Black , M. Tinkham

We have used a simple, analytically solvable model to analyze the characteristic s of dual-gate metal-oxide-semiconductor field-effect transistors (MOSFETs) with 10-nm-scale channel length L. The model assumes ballistic dynamics of 2D…

凝聚态物理 · 物理学 2009-10-30 F. G. Pikus , K. K. Likharev

Recent measurements on ultra-thin body Negative Capacitance Field Effect Transistors have shown subthreshold behaviors that are not expected in a classical MOSFET. Specifically, subthreshold swing was found to decrease with increased gate…

The discovery that a gate electrode suppresses the supercurrent in purely metallic systems is missing a complete physical understanding of the mechanisms at play. We here study the origin of this reduction in a Superconductor-Normal…

As metal-oxide-semiconductor field-effect transistors (MOSFET) channel lengths (Lg) are scaled to lengths shorter than Lg<8 nm source-drain tunneling starts to become a major performance limiting factor. In this scenario a heavier transport…

介观与纳米尺度物理 · 物理学 2015-06-15 Saumitra Mehrotra , SungGeun Kim , Tillmann Kubis , Michael Povolotskyi , Mark Lundstrom , Gerhard Klimeck

High performance InGaAs gate-all-around (GAA) nanowire MOSFETs with channel length (Lch) down to 20nm have been fabricated by integrating a higher-k LaAlO3-based gate stack with an equivalent oxide thickness of 1.2nm. It is found that…

介观与纳米尺度物理 · 物理学 2015-06-15 Jiangjiang J. Gu , Xinwei Wang , Heng Wu , Roy G. Gordon , Peide D. Ye

Fully depleted (FD) Silicon on Insulator (SOI) metal oxide Field Effect Transistor (MOSFET) Is the Leading Contender for Sun 65nm Regime. This paper presents a study of effects of work functions of metal gate on the performance of FD-SOI…

其他计算机科学 · 计算机科学 2011-04-06 Deepesh Ranka , Ashwani K. Rana , Rakesh Kumar Yadav , Kamalesh Yadav , Devendra Giri

We develop a robust and versatile platform to define nanostructures at oxide interfaces via patterned top gates. Using LaAlO$_3$/SrTiO$_3$ as a model system, we demonstrate controllable electrostatic confinement of electrons to nanoscale…

介观与纳米尺度物理 · 物理学 2015-04-10 Srijit Goswami , Emre Mulazimoglu , Lieven M. K. Vandersypen , Andrea D. Caviglia

We report on the dielectric degradation of Rare-Earth Oxides (REOs), when used as interfacial buffer layers together with HfO2 high-k films (REOs/HfO2) on high mobility Ge substrates. Metal-Oxide-Semiconductor (MOS) devices with these…

材料科学 · 物理学 2012-11-26 Md. Shahinur Rahman , Evangelos K. Evangelou , Nikos Konofaos , A. Dimoulas

We demonstrate controllable shift of the threshold voltage and the turn-on voltage in pentacene thin film transistors and rubrene single crystal field effect transistors (FET) by the use of nine organosilanes with different functional…

A method for assessing the quality of electronic material properties of thin-film metal oxide semiconductor field-effect transistors (MOSFETs) is presented. By investigating samples with MOCVD-grown MoS${_2}$ channels exposed to atmospheric…

We study field-effect transistors realized from VO2 nanobeams with HfO2 as the gate dielectric. When heated up from low to high temperatures, VO2 undergoes an insulator-to-metal transition. We observe a change in conductance (~ 6 percent)…

强关联电子 · 物理学 2011-09-30 Shamashis Sengupta , Kevin Wang , Kai Liu , Ajay K. Bhat , Sajal Dhara , Junqiao Wu , Mandar M. Deshmukh

We report the fabrication and study of Hall bar MOSFET devices in which an overlapping-gate architecture allows four-terminal measurements of low-density 2D electron systems, while maintaining a high density at the ohmic contacts.…

介观与纳米尺度物理 · 物理学 2010-10-13 Laurens H. Willems van Beveren , Kuan Y. Tan , Nai-Shyan Lai , Andrew S. Dzurak , Alex R. Hamilton

Recently, short channel effects (SCE) and power consumption dissipation problems pose big challenges which need imperative actions to be taken to deal with for field effect transistor to further scale down as semiconductor technology enters…

应用物理 · 物理学 2023-04-18 Laixiang Qin , Chunlai Li , Ziang Xie , Yiqun Wei , Jin He

This paper investigates the effect of process variations on unity gain frequency (ft) in 30 nm gate length FinFET by performing extensive TCAD simulations. Six different geometrical parameters, channel doping, source/drain doping and gate…

其他计算机科学 · 计算机科学 2010-10-05 B. Lakshmi , R. Srinivasan

Semiconductor supply chain is increasingly getting exposed to variety of security attacks such as Trojan insertion, cloning, counterfeiting, reverse engineering (RE), piracy of Intellectual Property (IP) or Integrated Circuit (IC) and…

密码学与安全 · 计算机科学 2015-12-08 Anirudh Iyengar , Swaroop Ghosh

In this paper, we study the behaviour of a microcantilever beam under electrostatic actuation using finite difference method. This problem has a lot of applications in MEMS based devices like accelerometers, switches and others. In this…

其他计算机科学 · 计算机科学 2007-11-29 W. Faris , H. Mohammed , M. M. Abdalla , C. -H. Ling

We report Beta-AlGaO/Ga2O3 tri-gate heterostructure MOSHEMTs incorporating a thin 5 nm Al2O3 gate oxide layer for improved gate control and reduced leakage. The devices were fabricated on AlGaO/GaO heterostructures grown by ozone MBE on…

材料科学 · 物理学 2026-01-21 Noor Jahan Nipu , Chinmoy Nath Saha , Uttam Singisetti

Gate oxide degradation is more critical in Silicon-Carbide (SiC) MOSFETs than in Silicon (Si) MOSFETs. This is because of the smaller gate oxide thickness and the higher electric field that develops across the gate oxide in SiC MOSFETs.…

综合物理 · 物理学 2018-02-23 Ujjwal Karki , Fang Zheng Peng

Spin-based metal-oxide-semiconductor field-effect transistors (MOSFET) with a high-mobility III-V channel are studied using self-consistent quantum corrected ensemble Monte Carlo device simulations of charge and spin transport. The…

介观与纳米尺度物理 · 物理学 2022-06-15 B Thorpe , K Kalna , S Schirmer