Search | Korea Science

Oh, J.G.;Kim, J.S.;Kang, J.J.;Kim, J.D.;Yoon, K.H.;Hwang, C.J.
- Proceedings of the Korean Society for Technology of Plasticity Conference
- /
- 2009.05a
- /
- pp.240-243
- /
- 2009
Recently, many researches on the development of super-hydrophobic and anti-reflective surfaces have been concentrated on the fabrication of nano-patterned products. The nano-patterned mold is a key to replicate nano-patterned products by mass production techniques such as injection molding and UV molding. The present paper proposes fabricating nano-patterned mold with cost-effective method. The nano-pattern molded was fabricated by electroforming the anodic aluminum oxide template without E-beam lithography. The final mold with nano-patterns showed the pores with the diameter of $100{\sim}120$ nm and the height of 150 nm was fabricated.
PDF

Choi, Yong-Sung;Moon, Jong-Dae;Lee, Kyung-Sup
- Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
- /
- 2006.06a
- /
- pp.404-405
- /
- 2006
Microarray-based DNA chips provide an architecture for multi-analyte sensing. In this paper, we report a new approach for DNA chip microarray fabrication. Multifunctional DNA chip microarray was made by immobilizing many kinds of biomaterials on transducers (particles). DNA chip microarray was prepared by randomly distributing a mixture of the particles on a chip pattern containing thousands of m-scale sites. The particles occupied a different sites from site to site. The particles were arranged on the chip pattern by the random fluidic self-assembly (RFSA) method, using a hydrophobic interaction for assembly.
PDF

Joung, Y.N.;Lee, E.K.;Kang, C.G.
- Proceedings of the Korean Society for Technology of Plasticity Conference
- /
- 2008.05a
- /
- pp.277-280
- /
- 2008
Recently, a demand of nano/micro patterned polymer for display or biochip has been rising. Then many studies have been carried out. Nano/micro-embossing is a deformation process where the workpiece materials is heated to permit easier material flow and then forced over a planar patterned tool. In this work, the hot-emboss process is performed with different forming conditions; forming temperature, load, press hold time, to get the proper condition for linear pattern fabrication on plated-type polymers (PC). Replicated pattern depth increases in proportion to the forming temperature, load and time. Reduction of the workpiece thickness increases according to press hold time. In process of time, reduction ratio of workpiece thickness decreases because of surface area increment of the workpiece and pressure decline on it.
PDF

Oh, Myung-Seok;Lee, Bong-Gu;Park, Myung-Kyu
- Journal of the Korean Society of Manufacturing Technology Engineers
- /
- v.26 no.3
- /
- pp.344-349
- /
- 2017
In this study, we developed a process technology to fabricate RFID tag antennas using a one-sheet inlay micro-pattern forming process by press-molding RFID tag antennas on insulation sheet layers, such as polymer films, using ultrasonic longitudinal vibration. In addition, a fine pattern applicable for RFID tag antennas was manufactured using a $25{\mu}m$ thick thin-plate square wire; this is in contrast to the method that uses a conventional round wire. The developed ultrasonic indentation process can be used to fabricate fine pattern of the RFID antenna using one piece of equipment. The simplified manufacturing process technology has a shorter manufacturing time and is more economical. The developed RFID tag antenna forming technique involves pressing the $25{\mu}m$ square wire directly on the thin sheet insulation sheet of maximum thickness $200{\mu}m$, using a 60 kHz ultrasonic tool horn.
https://doi.org/10.7735/ksmte.2017.26.3.344 인용 PDF KSCI