Georgia Institute of Technology – Page 4

An Integrated Transport Model for Tracking of Individual Exocytotic Events Using a Microelectrode

Fan T.H., Fedorov A.G., Georgia Institute of Technology, US

A complex biophysical process underlying the release of neurotransmitters and hormones from the secretion cells, known as a vesicular exocytosis, is an important mechanism that defines cell signaling and intercellular communication. This phenomenon has been [...]

On the Air Damping of Micro-Resonators in the Free-Molecular Region

Hutcherson S., Ye W., Georgia Institute of Technology, US

Predicting air damping on micromachined mechanical resonators is crucial in the design of high-performance filters used in wireless communication systems. In the past, most of the work focused on devices with minimum feature size on [...]

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 [...]

Spectral Analysis of Channel Noise in Nanoscale MOSFETS

Casinovi G., Georgia Institute of Technology, US

This paper describes an algorithm for numerical computation of the power spectral density (PSD) of channel noise in nanoscale MOSFETs. Noise generation phenomena inside the channel are modeled as random processes, represented by distributed sources [...]

Design and Development of an Integrated MEMS Sensor for Real Time Control of Plasma Etching

Morris B.G., May G.S, Georgia Institute of Technology, US

This paper explores a novel technique for monitoring film thickness in reactive ion etching that incorporates a micromachined sensor. The prototype sensor correlates film thickness with the change in resonant frequency that occurs in the [...]

Electrohydrodynamic Interactions of an AFM Tip and a Biological Membrane

Fan T.H., Fedorov A.G., Georgia Institute of Technology, US

In biological applications, AFM imaging needs to be performed in the natural (aqueous) living environment of the cell in order to observe molecular level interactions and biochemical processes in-situ in the electrolyte solution and to [...]

Size and Strain Rate Effects in Tensil Deformation of Cu Nanowires

Liang W., Zhou M., Georgia Institute of Technology, US

Nanoscale plasticity has drawn significant attention in recent years. Extensive Experimental and numerical studies have been conducted in this field. In previous molecular dynamics (MD) simulations, the Nose-Hoover isothermal procedure was often used to maintain [...]

Air Damping in an Ultra-High-Frequency Disk Resonator

Yap L.K., Yap L.Y., Yap L.K., Yap L.Y., Ye W., Georgia Institute of Technology, US

In this paper we investigate the air damping in a circular disk radially oscillating at 1GHz. First the compressibility effects of air between the disk and the substrate are studied. The pressure perturbation along the [...]

A Novel Method of Stereolithographic Alignment for MEMS Structures

Choudhury A., Hesketh P.J., Georgia Institute of Technology, US

In recent years there has been a fair amount of interest in integration of stereolithography with MEMS devices for purposes of packaging of microfluidic devices or to build new MEMS devices that are able to [...]

Size and Strain Rate Effects in Tensil Deformation of Cu Nanowires

Liang W., Zhou M., Georgia Institute of Technology, US

Nanoscale plasticity has drawn significant attention in recent years. Extensive Experimental and numerical studies have been conducted in this field. In previous molecular dynamics (MD) simulations, the Nose-Hoover isothermal procedure was often used to maintain [...]