Papers – Page 26 – TechConnect Briefs

Implementation of a Nonlinear Control Law for the Magnetostrictive Beam Vibrations by an Amplifier of Current to Current

Bereksi G.S., Center of Advanced European Studies and Research, DE

In this work, we start by giving a weak formulation of an ampli er of current to current network model and some estimations for the electrical current using graph theory. These estimations are interpreted in [...]

Simulation and Validation of Bulk Micromachined 6H-SiC High-g Piezoresistive Accelerometer

Atwell A.R., Okojie R.S., Kornegay K.T., Roberson S., Beliveau A., Cornell University, US

Quantum effects have been reported to play an important role in the operation of narrow width SOI devices, in which the carriers experience a two dimensional confinement in a square quantum well at the semiconductor-oxide [...]

Polysilicon Prototypes for Flip-bonded Hybrid MEM-tunable Filters and VCSELs

Ochoa E.M., Starman_Jr. L.A., Cowan W.D., Nelson_Jr. T.R., Blum Spahn O., Lott J.A., Air Force Institute of Technology, US

We characterize our novel mechanical structures for flip-bonded hybrid micro-electro-mechanically (MEM) tunable filters (MEM-TF) and MEM-tunable vertical cavity surface emitting lasers (MEM-TVCSELs) by comparing simulations with foundry fabricated actuators. Two of our prototypes, each with [...]

Modeling and Simulation of Silicon Microsystem of Chemical Signals

Daniel M., Szermer M., Slusarczyk K., Napieralski A., Technical University of Lodz, PL

The purpose of this paper is to introduce the new approach to the integrated microsystem oriented for water monitoring. Nowadays it becomes extremely important to analyze and estimate the chemical composition of water. Presented microsystem [...]

Simulation of Electrical Field Induced Particle Transfer

Hoffmann R., Wachutka G., Océ Printing Systems, DE

The controlled transfer of charged, densely distributed polymer particles across narrow air gaps is one of the basic mechanisms in modern printing technology. To understand the detachment and transport of charged particles by an electric [...]

Prediction Model of Microlens Fabricated by Modified LIGA Process

Kim D.S., Lee S-K, Lee S.S., Yang S.S., Kwon T.H., Lee S-K, Lee S.S., Pohang University of Science and Technology, KR

In this paper, we present a prediction model for microlens formation by means of a deep X-ray lithography followed by a thermal treatment of a PMMA (Polymethyl-methacrylate) sheet. According to this modeling, X-ray irradiation causes [...]

Simulation and Measurement of Dielectric Charging in Electrostatically Actuated Capacitive Microwave Switches

Reid J.R., US Air Force Research Laboratory, AFRL/SNHA, US

Simulations of the effects of dielectric charging on the operation of electrostatically actuated capacitive microwave switches have been performed. The simulations are unique in that they incorporate fixed charges into the calculation of the beam [...]

Design of the Two-Movable Plates Type MEMS Voltage Tunable Capacitor

Kim Y., Lee S-G, Park S., Kyungpook National University, KR

In this paper, we have proposed and designed the new structure of a RF-MEMS voltage tunable capacitor, which have two-movable parallel plates using electrostatic method and can be fabricated by the MEMS technology. Capacitance of [...]

Flow Cell Detection with an Optical Fiber

Kim E., Kim W., Kim E., Kim W., Lee S-G, Park S., Kyungpook National University, KR

In this experiment, we tested various optical fibers to select a suitable fiber for a effective flow cell detection. In order to align between micronozzle and optical fibers, a guide channel was fabricated by Si [...]

Comparative Studies of Novel Capacitive Transducers with Non-Planar Diaphragms

Chen J., Liu L., Li Z., Liu L., Tsinghua University, CN

Novel single-chip fabricated condenser structures with corrugated diaphragms for residual stress releasing have been proposed and simulated. An electrostatic-structural coupling FEM analysis has been performed to fully reveal the nonlinear relationship of output electrical signal [...]