Papers – Page 31 – TechConnect Briefs

Design and Manufacturing of a Miniaturized 2.45GHz Bulk Acoustic Filter by High Aspect Ratio Etching Process

Lin C.H., Chen H-R, Du C-H, Fang W., National TsingHua University, TW

A 2.45GHz filter is fabricated by thin film bulk acoustic wave resonator (FBAR) technology. Especially, it is designed to minimize die size and to simplify fabrication process simultaneously by using inductive coupling plasma etching. The [...]

Geometrical Effects in Mechanical Characterizing of Microneedle for Biomedical Applications

Aggarwal P., Johnston C., University of Calgary, CA

This paper discusses the design and implementation of MEMS microneedle with emphasis on integrated functionality for sensing the forces. The idea is based on the requirements of strength, robustness, and minimal insertion pain and tissue [...]

Lattice Boltzmann Simulations Comparing Conventional and a Heat Conduction Based Flow-Through PCR Micro-Devices

Mautner T., SPAWAR Systems Center San Diego, US

This paper describes the lattice Boltzmann, numerical simu-lations used to evaluate a conduction-based, polymerase chain reaction (PCR) device for uniformity of the micro channel temperature profile and its velocity field distribu-tion. For comparison purposes, numerical [...]

A New Method to Design Pressure Sensor Diaphragm

Wang X., Li B., Lee S., Sun Y., Roman H.T., Chin K., Farmer K.R., New Jersey Institute of Technology, US

Over the last decade, silicon pressure sensors have undergone a significant growth. In most cases, these MEMS (Microelectromechanical System) devices are manufactured from rectangular or circular diaphragms whose thickness is constant and in the order [...]

DEP Particle Dynamics and the Steady Drag Assumption

Wereley S.T., Whitacre I., Bashir R., Li H.B., Purdue University, US

The interaction of fluid drag, dielectrophoretic forces, and Brownian motion on a nanoparticle's motion is studied using a microfluidic chip with interdigitated electrodes. The flow domain is a 12 micron deep by 150 micron wide [...]

Novel 2D Interfaces for Nanoelectrospray-Mass Spectrometry

Arscott S., Le Gac S., Druon C., Tabourier P., Rolando C., USTL, FR

This work concerns the development, fabrication and testing of novel 2D nanoESI emitter tips. The design of the emitter tips follows a fountain pen model; fabrication relies on the use of the negative photoresist SU-8. [...]

An Effective Passive Micromixer Employing Herringbone Structure

Kung C-F, Chen C-F, Chu C-C, Tseng F-G, IAM, National Taiwan University, TW

This paper proposes a high efficient micro mixer, passively employing surface tension force as driving power and Herringbone structures as vortex generator for fluid mixing. The fluidic channel was designed without sidewall and confined with [...]

Analysis of AC-Driven Electroosmotic Flow in a Microchannel Packed with Microspheres

Kang Y.J., Yang C., Huang X.Y., Nanyang Technological University, SG

This paper presents a theoretical study on the AC-driven electroosmotic flow in both open and closed cylindrical microchannels packed with uniform microspheres. The time-periodic oscillating electroosmotic flow in an open microchannel in response to the [...]

Droplet Movement Induced by Nano Assembled Molecules And Micro Textures

Tseng F-G, Chien S.C., National Tsing Hua University, ESS Dept., TW

This paper introduces a droplet movement method on top of a surface prepared by gradient nano-scale self-assembled molecules on micro sized textures. Experimental results demonstrate the contact angles on hydrophobic surfaces without/with micro posts increase [...]

Optimization of Mixing in an Active Micromixing Device

Mathew G., Mezic I., Serban R., Petzold L., university of california, santa barbara, US

Microscale mixers can be divided into two broad classifications - passive and active. Passive mixers rely on geometric properties of the channel shape whereas active mixers rely on time-dependent perturbation of the fluid flow to [...]