Metal–oxide–semiconductor field-effect transistors ~MOSFETs! with a wire-channel and wrap-around-gate ~WW! structure were fabricated using electron beam lithography and reactive ion etching. The smallest devices have a 35 nm channel width, a 50 nm channel thickness, and a 70 nm channel length. Measurements showed that as the channel width of WW MOSFETs decreased from 75 to 35 nm short channel e...

A comprehensive study of velocity overshoot in double gate silicon on insulator (DGSOI) transistors has been undertaken. Monte Carlo simulations were performed to clarify the dependence of velocity overshoot effects on the low field mobility, channel inversion charge and silicon layer thickness. The relationships and dependences between the energyand momentum-relaxation times were also investig...

We, using LSMO:ZnO nanocomposite films as a model system, have studied the effect of film thickness on the physical properties of nanocomposites. It shows that strain, microstructure, as well as magnetoresistance strongly rely on film thickness. The magnetotransport properties have been fitted by a modified parallel connection channel model, which is in agreement with the microstructure evoluti...

High-performance PMOSFETs with sub-50–nm gate-length are reported. A self-aligned double-gate MOSFET structure (FinFET) is used to suppress the short-channel effects. This vertical double-gate SOI MOSFET features: 1) a transistor channel which is formed on the vertical surfaces of an ultrathin Si fin and controlled by gate electrodes formed on both sides of the fin; 2) two gates which are self-...

Lipid metabolites, free fatty acids and lysophospholipids, modify the function of membrane proteins including ion channels. Such alterations can occur through signal transduction pathways, but may also result from "direct" effects of the metabolite on the protein. To investigate possible mechanisms for such direct effects, we examined the alterations of gramicidin channel function by lysophosph...

A steady-state model of oxygen distribution in a cardiac tissue construct with a parallel channel array was developed and solved for a set of parameters using the finite element method and commercial software (FEMLAB). The effects of an oxygen carrier [Oxygent; 32% volume perfluorocarbon (PFC) emulsion] were evaluated. The parallel channel array mimics the in vivo capillary tissue bed, and the ...

The burner-type regeneration diesel particulate filter is one of the most widely used filters. Using AVL FIRE, a 3D model (DPF) was established, and simulation analyses were carried out. effects exhaust parameters (temperature, mass flow rate, soot load) structural (channel density, inlet/outlet channel ratio, length–diameter ratio) on distribution (soot concentration thickness) analyzed. resul...

In this paper, electrical characteristics of nanoscale single-, double-, and all-around-gate silicon-0n-insulator (SOI) devices are computational investigated by using a quantum mechanical simulation. Considering several important properties, such as on/off current ratio, drain induced channel barrier height lowering, threshold voltage roll off, and subthreshold swing, geometry aspect ratio is ...

Analytic estimates for the forces and free energy generated by bilayer deformation reveal a compelling and intuitive model for MscL channel gating analogous to the nucleation of a second phase. We argue that the competition between hydrophobic mismatch and tension results in a surprisingly rich story that can provide both a quantitative comparison with measurements of opening tension for MscL w...

in this paper, we propose and evaluate a novel design of a lightly doped drain and source carbon nanotube field effect transistor (ldds-cntfet) with a negative differential resistance (ndr) characteristic, called negative differential resistance ldds-cntfet (ndr-ldds-cntfet). the device was simulated by using a non equilibrium green’s function method. to achieve this phenomenon, we have created...