Ko H.S. – TechConnect Briefs

Micro Patterning of Organic Solvents on OLED Device Using EHD Inkjet Technology

Jo W., Ko H.S., Lee S-H., Nguyen X.H., Sungkyunkwan University, KR

Although there are many modes of the ejection mechanism from the EHD nozzle [2], a cone-jet mode, a pulse-jet mode and a micro-dripping mode have been analyzed by capturing the jetting phenomena using organic solvents [...]

Fabrication of plastic optical label-free biosensor and Immunodetection of cardiac marker in human serum

Hong J.C., Huh C., Kim B-K., Kim K.H., Ko H.S., Sung G.Y., ETRI, KR

We have studied for lab-on-a-chip (LOC) based bio-devices and fabricated plastic optical label-free biosensor device. Optical resonant reflection biosensor (ORRB) is a kind of label-free sensor, containing nanoscale resonate grating patterns1 and whole blood filter. [...]

Electrostatic Induced Inkjet Printing System for Micro Patterning and Drop-On-Demand Jetting Characteristics

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

Printing technology is considered to be a key technology even in the field of electronics, materials processing, and bio applications. Inkjet printing is an interesting patterning technique for electronic devices because it requires no physical [...]

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

Byun D., Choi J., Kim Y., Ko H.S., Lee S., Son S.U., 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 [...]

Electrostatic Droplet Ejector with Monolithic Fabrication of Nozzle

Byun D.Y., Han S.J., Kim Y., Ko H.S., Lee S-H., Oh J.T., Son S.U., Yang J.H., Konkuk University, KR

This paper presents a novel mechanism of electrostatic micro droplet formation and ejection of fluid. Unlike conventional electrostatic jetting which requires a high operating voltage, we offer a, commercially viable, low operating voltage for droplet-on-demand [...]