KR – Page 27 – TechConnect Briefs

Study of the phenomenon of meniscus deformation and ejection by pulse voltage and frequency in drop-on-demand EHD printing

Son S., An K., Kim Y.J., Choi J., Lee S., Sungkyunkwan University, KR

EHD (electrohydrodynamics) printing has recently attracted attention for micro/nano size pattern devices due to it can make very small droplet than nozzle diameter and possibility of the use of various ink such as including metal, [...]

The Investigation of Electrostatic Induced Inkjet Printing System for the Ejection of a Stable Micro/Nano Droplet

Choi J., Kim Y.J., Son S.U., Chul An K., Lee S., Sungkyunkwan University, KR

Inkjet printing technology has recently attracted considerable attention for a simple fabrication and advanced pattering process during the past decade. In order to manufacture advanced inkjet printing technology, my team has alternatively proposed and investigated [...]

Development of Quantitative Adhesive Force Measurement Systems for Flexible Electronics

Kim M., Park J., Choi B., Sogang University, KR

In this paper, a novel adhesive force measurement system is developed to measure adhesive forces from interacting surfaces. In previous paper, the adhesive force was measured with tens/hundreds of uN, and the displacement was measured [...]

Design and Fabrication of the Sensor for Measuring the Human Bladder Volume

Lee S., Jun S., Kim S., Kim S., Choi B., Sogang University, KR

This paper presents the result of study on the development of a bladder volume sensor. Previous studies focus on the development of an inner bladder pressure sensor. But there are some difficulties about the measurement [...]

A current controlled plasma-on-a-chip for atmospheric plasma generation

Park H., Jeong J., Kim Y., Hongik University, KR

We present a plasma-on-a-chip operated in a current controlled bias scheme for atmospheric plasma generation. The plasma-on-a-chip was fabricated using micromachining techniques and includes an array of vertically formed micro gaps between an anode and [...]

Mechanical Robustness of FPA in a-Si Microbolometer with Fine Pitch

Kim B.I., Kim H-Y, Kim K-M, Kim T-H., Kim B.I., Kim H-Y, Kim K-M, Kim T-H., Kim B.I., Kim H-Y, Kim K-M, Kim T-H., Jang W.S., Kim B.I., Kim H-Y, Kim K-M, Kim T-H., Kang T.Y., National Nanofab Center, KR

Uncooled microbolometer has the various applications in many commercial and military applications. Among many sensor materials, amorphous Si have been widely used as sensor materials for their good TCR (Temperature Coefficient of Resistance), mechanical strength, [...]

Machining Using Fast Tool Servo Combined with Ultrasonic Vibrator

Choi S.C., Hong Lu, Lee D.W., Pusan University, KR

In the diamond turning which conjunction with fast tool servo (FTS), burr formation is a key factor of the work piece surfaces roughness and diamond tool wear. This paper presents a machining method that combined [...]

Development of Precision Stage with Magnified Displacement System

Kim J.G., Choi S.C., Lee D.W., Pusan National University, KR

In this study, a new precision stage was developed using self-lever-mechanism to magnify its moving displacement optically. The developed precision stage was constructed as a position-sensitive photodiode (PSPD), a laser diode (LD), and a hinge-connected [...]

Intermittent desolvation method to prepare size-controlled BSA nanoparticle

Paik S-Y-R, Nguyen H.H., Yang S.C., Che J., Ko S., Sejong university, KR

The development of standard method for nanoparticle preparation using food-grade materials is helpful for various nanotechnology-related applications for food product. In this study, bovine serum albumin (BSA) nanoparticles were prepared using a desolvation method. The [...]

Crystal-like growth of metal oxide/CNT composite with electroplated “seed”

Kim W-J, Kim Y.H., Jang E.Y., Seo D.K., Kang T.J., Jin K.C., Jeong D.H., Kim W-J, Kim Y.H., Seoul National University, KR

In this study, we developed a novel assembly technique for macroscopic one-dimensional metal oxide/CNT composites. An essential feature of the technique lies in the use of non-aqueous electrolyte in place of the usual aqueous electrolyte [...]