Kim J-M – TechConnect Briefs

Reliability Evaluation of Inkjet-Printed Silver Patterns for Application to Printed Circuit Board

Shin K.-Y., Kang H.S., Kang K.T., Kang H.S., Kang K.T., Hwang J.Y., Lee S-H., Kim J-M, Korea Institute of Industrial Technology, KR

Recently, several studies on the reliability of inkjet-printed patterns have been conducted to evaluate inkjet printing technology as a fabrication process for the printed circuit board industry. However, the methods and standards for evaluating the [...]

Topology Optimization of Ultrasonic Transducers for Microsystem and IC Packaging

Kim J-M, Kim J-S, Kim J-M, Kim J-S, Lee S.I., Lim E.J., University of Seoul, KR

In this study, we introduce the method of topology optimization for piezoelectric transducers including ultrasonic tool horns for flip chip or wire bonding. Topology optimization performs an optimization with the objective function regardless of initial [...]

Immobilization of Polydiacetylene Sensor on Solid Substrate

Lee Y.B., Kim J-M, Park K.H., Son Y.G., Ahn D.J., Kim J-M, Hanyang University, KR

We have prepared diacetylene monomers and immobilized the resulting self-assembled diacetylene liposomes onto the glass substrates. Fine fluorescent images were obtained when the immobilized liposomes were irradiated with UV light through a photomask followed by [...]

Controlling Colorimetric Reversibility of Nanostructured Polydiacetylenes

Lee C.H., Lee J.S., Lee C.H., Lee J.S., Park H-W., Lee C.H., Lee J.S., Ahn D.J., Kim J-M, Hanyang University, KR

Polydiacetylene liposome has specific color change of blue to red upon various kinds of stimuli. Stimuli can be a antigen-antybody, thermal stimuli and Ph change and even physical contact. From these charecteristics polydiacetylene used a [...]