KR – Page 41 – TechConnect Briefs

Pattern Characteristic by Electrostatic Drop-On-Demand Ink-jet Printing Using Capillary Inkjet Head System

Choi J., Son S.U., Kim Y., Lee S., Kim Y., Ko H.S., Byun D., Sungkyunkwan University, KR

Ink-jet printing technology is very attractive for forming micro-size patterns for flat panel displays (FPDS), semiconductor, biological and optical devices. Further the necessity of the industrial inkjet system has grown in the past years due [...]

200um-class Polymeric Microneedle Fabricated by a Micro Injection Molding Technique

Kang J-J, Lee S-H., Jung T-S, Heo Y-M, Korea Institute of Industrial Technology, KR

Extensive microneedle research has been conducted to enhance the efficiency of transdermal drug delivery. It has been expected and shown through experiments in vivo that microneedles can increase the skin permeability to deliver drugs by [...]

Multifunctional Microvalves Control by Optical Illumination on Nanoheaters and its Application in Centrifugal Microfluidic Devices

Park J.M., Cho Y-K, Lee B-S, Lee J-G, Lee B-S, Lee J-G, Ko C., Samsung Advanced Institute of Technology, KR

We report ultrafast control of phase-change based microvalves utilizing nanoheaters; ferronanoparticles dispersed in paraffin wax, and heating by optical illumination using a 808 nm laser diode. High speed camera images showed that the actual response [...]

A study on the novel micromixer with chaotic flow

Lee S-H., Kang H.J., Choi B.K., Sogang University, KR

We design that a fluid was rotated by a coupling between Lorentz force and a moving force of a electric charge in an electric field. And it generate barrier embedded chaotic flow to use mass [...]

Compact Electromagnetic XY Stage with Nano Scale Resolution and Vibration Resistance

Lee K-I., Kim S-H, Cho J-W, Choi Y.J., Shin J-K, Yoo J.C., Choi Y.J., Korea Electronics Technology Institute, KR

The design, fabrication, and the measurement results of an electromagnetic XY stage are presented. The device has an anti vibration structure and shows a high fill factor of 45% due to its unique structure. Furthermore, [...]

Modeling hysteresis and creep characteristics of a carbon-nanotube-reinforced electroactive actuator

Sohn K., Shin S.R., Yi B-J, Kim S.I., Kim S.J., Kim S.I., Kim S.J., Hanyang University, KR

For smart materials that are useful in wide variety of applications such as microelectromechanical systems (MEMS), machine components, and artificial muscle, the nonlinear phenomena of hysteresis and creep are essential consideration. We investigated movement of [...]

Carbonate ion sensing electrode membrane based on poly(vinyl chloride) and its property characteristics

Kim D., Kim H-C, Kim D., Kim H-C, Byun G., Park S-D., Ree M., POETECH, KR

A series of poly(vinyl chloride) (PVC) membranes containing a carbonate ion sensible ionophore, a lipophilic additive, and a plasticizer in various compositions was prepared and then investigated in detail in the aspects of properties and [...]

Au Nanoparticle Coupled- Surface Plasmon Resonance Chemical Sensor for Sensitivity Enhancement

Kim H-S, Kim J.H., Choi S-W, Kim H-S, Kim J.H., Cho Y-J, Choi S-W, Ajou University, KR

In order to overcome the sensitivity limitation of SPR, nanoparticle-coupled SPR biosensors have explored with tremendous interests since nanoparticles may significantly enhance the sensitivity by 1-2 orders of magnitude. M. J. Natan et al. reported [...]

Genetic Algorithm for the Design of Microchip Flow Cytometers

Bang H., Lee W.G., Yun H., Min J.K., Chung C., Chang J.K., Han D-C, Seoul National University, KR

Robot designers and artificial-intelligence researchers have long been inspired by living things. Now, we are trying to mimic some of the most fundamental features of life while designing micro devices. In this paper we proved [...]

A Study on the Electrical Properties of Plasma Nitrided Oxide Gate Dielectric in Flash Memory

Park M., Suh K., Lee S., Kang H., Kim K., Kim K., Samsung Electronics, KR

In this paper, we address the effect of Plasma Nitridation on the gate dielectric by a combined experimental and simulation study of gate oxidation. Firstly, Boron segregation at the Si/SiO2 interface is experimentally characterized by [...]