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Proceedings Paper

Effects of substrate treatments on silver ink-jet printing
Author(s): Sang-Ho Lee; Kwon-Yong Shin; Jun Young Hwang; Kyungtae Kang; Heuiseok Kang; Young June Cho
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Paper Abstract

In this study, characteristics of silver ink-jet printing were investigated under various substrate treatments such as substrate heating, hydrophobic coating, and ultraviolet (UV)/ozone soaking. Fluorocarbon (FC) film was spin-coated on the polyimide (PI) film substrate to obtain a hydrophobic surface. The coated FC film surface was estimated to have a fairly hydrophobic nature in that it exhibited a large water contact angle of 110‐113°. Although hydrophobicity of the FC film could reduce the diameter of the printed droplets, the singlet images printed on the FC film surface showed irregularities in the pattern size and the position of the printed droplet along with droplet merging phenomenon. The proposed UV/ozone soaking of the FC film improved the uniformity of the pattern size and the droplet position after printing and substrate heating was very effective way in preventing droplet merging. By heating of the substrate after UV/ozone soaking of the coated FC film, silver conductive lines of 78‐116 μm line were successfully printed at relatively low substrate temperatures of 40 °C and 70 °C.

Paper Details

Date Published: 10 October 2007
PDF: 8 pages
Proc. SPIE 6717, Optomechatronic Micro/Nano Devices and Components III, 67170S (10 October 2007); doi: 10.1117/12.754389
Show Author Affiliations
Sang-Ho Lee, Korea Institute of Industrial Technology (South Korea)
Kwon-Yong Shin, Korea Institute of Industrial Technology (South Korea)
Jun Young Hwang, Korea Institute of Industrial Technology (South Korea)
Kyungtae Kang, Korea Institute of Industrial Technology (South Korea)
Heuiseok Kang, Korea Institute of Industrial Technology (South Korea)
Young June Cho, Korea Institute of Industrial Technology (South Korea)


Published in SPIE Proceedings Vol. 6717:
Optomechatronic Micro/Nano Devices and Components III

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