We present an online software tool that enables both novices and experts to quickly and fairly accurately model and simulate an electro-thermo-mechanical microdevice. We model and simulate a MEMS thermal actuator by coupling finite element [...]
Conventional designs for MEMS parallel-plate tunable capacitor suggest rectangular electrodes and linear structural stiffness which offer high Q-factor and quick responses; however, they have low tunability of 50% and nonlinear capacitance-voltage responses. This paper presents [...]
To create advanced Microsystems by 3D integration, die-to-wafer assembly is required to obtain fast and reliable packaging. In order to overcome the main difficulties of current techniques, self-assembly methods are promising due to their serial [...]
In this paper, a design technique is presented that can linearize the response of MEMS capacitive elements such as tunable capacitors, capacitive sensors and out-of-plane electrostatic actuators. The method combinations the electrode flexibility and nonlinear [...]
The quantum confinement effect on the adsorption and reaction mechanism of aliphatic and aromatic hydrocarbons on H-ZSM-5 zeolite was studied for the first time with a newly developed functional, M06L. With this well calibrated method, [...]
We investigated the deformation of the viscoelastic polymethyl methacrylene (PMMA) resist wherein a rigid SiO2 stamp with a rectangular line pattern is imprinted for thermal nano-imprint lithography (NIL). We calculated the stress distribution in the [...]
2,6-Dimethylnaphthalene (DMN) is the key intermediate in the synthesis of poly (ethylene naphthalate) (PEN), a high-performance polymeric material. The processes to produce 2,6-DMN have been the focus of numerous experimental investigations, yet there is no [...]
Evaluation of the spatial distribution of Ni metal atoms inside CAN was done at two Si/ Al ratios and four Ni loadings. Using Sorption from Material Studio 4.0 (Accelrys, Inc.), Metropolis Monte Carlo simulations under [...]
We present single-layer, silicon-based resonant leaky-mode elements implemented with periodic waveguide layers. This new device class has wide applicability in photonic devices and systems. Leaky waveguide modes can be exited when an incident light beam [...]
The conversion of ethanol to ethylene, which is one of the most important feed stocks for the petrochemical industry, is of particular commercial interest. Two mechanisms, stepwise and concerted, of the ethanol dehydration to ethylene [...]
The complete detailed reaction mechanism for the oxidative dehydrogenation of ethane over Fe-ZSM-5 zeolite has been systematically investigated by means of the ONIOM(MP2/6-31G(d,p):UFF)//ONIOM(B3LYP/6-31G(d,p):UFF) scheme. Two types of reaction mechanisms for the oxidative dehydrogenation of ethane [...]
We perform a molecular dynamics simulation to emulate the retraction followed by re-approach of an AFM with respect to a surface. We found a hysteresis in the snap-off distance and energy during such a tapping [...]
Alanine and valine are the most important primary amino acids and take important roles in the protein, DNA, RNA and other biological molecular synthesis. Computational approaches to solve the complex problem in material science and [...]
The stability of (MX)12 cage clusters and cluster-based polymorphs of a large range of alkali halides and the first row element compounds (LiF, BeO, BN and C) were investigated using state-of-the-art plane wave density functional [...]
The reaction mechanism of Metal organic framework (MOF-505) and Cu-exchange ZSM-5 zeolite promoted Mukaiyama Aldol reaction is studied theoretically. Density-functional theory (B3LYP/6-31G(d,p)) and ONIOM (B3LYP/6-31G(d,p):UFF) have been employed to investigate the reaction of Mukaiyama aldol [...]
While the empty C74 fullerene has still not been available, various related C74-based metallofullerenes have been known and studied vigorously like Ca@C74, Sm@C74, Sr@C74, Ba@C74, La@C74, Eu@C74, Yb@C74, Sc2@C74 or Er3@C74. This contributions will deal [...]
Recently, the supercapacitors utilizing Carbon Nanotubes (CNTs) were reported. Currently, the fabrication of CNT-based supercapacitors involves manipulation of CNTs that is difficult and expensive owing to tiny size of CNTs. The direct deposition of well [...]
Abstract:The presentation is a contribution in the area of MEMS Array modelling. In some cases, Arrayed Microsystems present coupling between their components, and their global simulation cannot be performed taking into account individual sub-systems separately. [...]
The characterization and prediction of the structures of metal silicon clusters is important for nanotechnology research because these clusters can be used as building blocks for nano devices. Several authors have postulated that there is [...]
Abstract— In this paper a novel approach for simulating electronic transport in nanoscale structures is introduced. We consider an open quantum system (the electrons of structure) accelerated by an external electromotive force and dissipating energy [...]
Recently, devices have been developed which use Carbon Nanotubes (CNTs) as torsional spring elements. In order to define the range of applicability of CNTs in such devices, it is important to fully understand their torsional [...]
This paper presents an analysis of the finite element method (FEM) and genetic algorithms for the analysis of MEMS and BIOMEMS design. The finite element method is the method used for the computational analysis of [...]
We report our kinetic Monte Carlo (kMC) study of the effect of carbon co-implant on the pre-amorphization implant (PAI) process. We employed BCA (Binary Collision Approximation) approach for the acquisition of the initial as-implant dopant [...]
Valving is essential to microflow circuits in microsystem technology. Many different types of valves have already been designed. Membranes of sacrificial materials have been studied for one shot valving; however, the new design proposed here, [...]
Surface Acoustic Wave (SAW) technology is low cost, rugged, lightweight, extremely low power and can be used to develop passive wireless sensors. For these reasons, NASA is investigating the use of SAW technology for Integrated [...]
A two-dimensional model for fluid flow in a digital microfluidic system is introduced, and the results are compared to experimental data. Resistive flow effects based upon contact line forces, filler effects and shear forces are [...]
Two-dimensional transient analysis of field-plate GaAs MESFETs is performed in which a deep donor “EL2” and a shallow acceptor are considered in a semi-insulating substrate, and the results are compared between the two cases with [...]
The impact of ballistic/quasi-ballistic carrier transport on the switch of a CMOS inverter and on the noise margin of a 6T SRAM cell, both based on Double-Gate MOSFETs (DGMOS), is analysed using mixed-mode simulation. To [...]
In this paper, an analytical terahertz (THz) signal detection model of Silicon-based nanowire MOSFET (NWFET) is proposed. Beginning from the fundamental hydrodynamic transport equations, the expressions of the velocity spatial distribution and inversion charge transport [...]
In this paper, the Double-Gate MOSFET’s operation modes such as symmetric, asymmetric and independent-gate-operation are discussed and an idea for the generic compact model development is proposed. It is shown that the presented generic model [...]
In this paper, an analytic model of the Silicon-based Nanowire Schottky-Barrier MOSFETs is developed based on the 2D solution of body potential together with the WKB tunneling theory. The proposed model predicts the electrical characteristics [...]
, Li B.
, Lin X.
, Zhang L.
, Zhang X.
, He J.
, Zhang L.
, Zhang X.
, Lin X.
, Peking University, CN
A detail analysis for nanoscale FinFET performance degradation induced by the Hot Carrier Injection (HCI) is given in this paper, and a physical based HCI compact model adapted to all the operation modes is presented. [...]
Thin film transistors (TFTS) find wide usage in active matrix liquid crystal displays. The basic principle of operation of the LCD panel is to control the transparency of each pixel portion by bus lines to [...]
Micromixing is particularly interesting for many microfluidic applications. In micrometric size devices, reaching an efficient mixing is often difficult, due to laminarization of the flow. As an example, efficient mixing may be obtained using a [...]
In Biotechnology, it is generally the use to calculate and design prototypes of microsystems by considering aqueous or organic liquids that have a spatially uniform viscosity. However, many liquids used in biological applications are at [...]
1) The paper is on interfacing nanotechnology with bio technology to result a nano bio computer. 2) This technology will be capable of replacing the present generation laptops. 3) DNA is used as a memory [...]
This paper demonstrates that CFD simulations can be used to study important physical phenomena in Droplet based Microfluidics Devices. The Volume of Fluid (TruVOFTM) method in FLOW-3D® (a general purpose CFD software) has been used [...]
Journal: TechConnect Briefs
Volume: 3, Nanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling
Published: May 3, 2009
Industry sector: Advanced Materials & Manufacturing
Topic: Informatics, Modeling & Simulation