Georgia Institute of Technology – Page 3

Compact, Physics-Based Modeling of Nanoscale Limits of Double-Gate MOSFETs

Chen Q., Wang L., Murali R., Meindl J.D., Georgia Institute of Technology, US

Compact, physics-based models of subthreshold swing and threshold voltage are presented for double-gate (DG) MOSFETs in symmetric, asymmetric, and ground-plane modes. Applying these device models, threshold voltage variations in DG MOSFETs are comprehensively and exhaustively [...]

A Compact Physical Model for Critical Quantum Mechanical Effects On MOSFET

Wang L., Meindl J.D., Georgia Institute of Technology, US

As the MOSFET is scaled down to sub-100nm range, two quantum mechanical effects (QME) of the energy quantization and the electron tunneling though the gate oxide become critical. A new compact physical model for QME [...]

Boundary Integral Solution of Quasi-Linear Laplace Equation

Ding J., Ye W., Georgia Institute of Technology, US

An Integral approach based on the p-FTT acclerated BEM, which requires only surface discretization, has been developed for solving nonlinear equations. Examples of a Helmholtz and a quasi-linear Laplace problems in both a spherical domain [...]

Design Optimization of a Surface Micromachined Electro-Thermal Beam Flexure Polysilicon Actuator

Atre A., Georgia Institute of Technology, US

Electro-thermal polysilicon actuators are widely employed in optical MEMS applications. These actuators are typically designed for maximum deflection (unloaded) or force (loaded) output characteristics. The optimal design methodology of the actuator has been investigated previously [...]

Nanoparticle Separations Using Miniaturized Field-Flow Fractionation Systems

Graff M., Edwards T.L., Gale B.K., Frazier A.B., Georgia Institute of Technology, US

Paper describes the fabrication and testing of a micromachined electrical field-flow fractionation system, performing separations of various types of nanoparticles.

Investigation of Patterned Media Concept for Very High Magnetic Storage Density

Horton B., Streator J.L., Georgia Institute of Technology, US

One potential architecture for very high magnetic storage density, called perpendicular recording, orients the magnetic domains normal to the media surface to achieve a higher domain volume and therefore increase the thermal stability. Additionally patterned [...]

Nano-Cantilevers for an Ultra-Sensitive Bio-Assay

Zheng J., Klein K., Pucha R., Sitaraman S.K., Sitaraman S.V., Merlin D., Rajalakshmi S., Sarma D.S.R., Gerwirtz A., Sitaraman S.K., Sitaraman S.V., Georgia Institute of Technology, US

Micro and Nano-scale cantilever arrays are being developed for an ultra sensitive bio-assay (Figure 1). The advantage of these cantilevers is that they eliminate the use of laser for deflection detection, which is impractical for [...]

A Microfluidic System for Continuous Magnetophoretic Separation of Suspended Cells Using Their Native Magnetic Properties

Han K-H, Bruno Frazier A., Georgia Institute of Technology, US

This paper presents the characterization of a continuous magnetophoretic microseparator for separating white and red blood cells from whole blood by using a high gradient magnetic separation method and microfabrication technology. The magnetophoretic microseparator directly [...]

A Novel Approach for Volume-Integral Evaluation in the BEM

Ding J., Ye W., Georgia Institute of Technology, US

The need for efficient solutions to problems with complex 3-D geometries, such as those encountered in micro-electro-mechanical systems (MEMS), has led to the development of fast algorithms. Based on the accelerated Boundary Element Method (BEM), [...]

Fast BEM Solution for Coupled 3D Electrostatic and Linear Elastic Problems

Masters N.D., Ye W., Georgia Institute of Technology, US

This paper presents the development of a precorrected-FFT 3D BEM solver for linear elastic problems. This can be used with existing fast BEM solvers for electrostatics and Stokes flow to efficiently solve coupled problems, as [...]