ACS_Ying Ying_revised_final.pdf (2.11 MB)
Surface treatments for inkjet printing onto a PTFE-based substrate for high frequency applications
journal contribution
posted on 2013-09-17, 15:39 authored by Ying Ying Lim, Yee GohYee Goh, Changqing LiuInkjet printing onto laminates for use in high frequency applications (high frequency laminates)
is challenging, due to the substrate surface roughness present after etching away the copper
layer(s). This has a detrimental effect on interconnect losses as the frequency increases. In this
paper, different surface treatments to reduce the surface roughness of a typical high frequency
laminate (RO3006) are investigated. In particular, the importance of matching the substrate
surface energy to the ink to achieve a smooth coated layer for the case of a UV cured insulator is
demonstrated. This is achievable within the parameters of heating the platen, which is a more
flexible approach compared to modifying the ink to improve the ink-substrate interaction. In
printing onto the surface modified substrates, the substrate roughness was observed to affect the
printed line width significantly. A surface roughness factor was introduced to take into account
the phenomenon by modifying the original formula of Smith et al. Lastly, the authors show that
the printed line widths are also influenced by the surface tension arising from charges present on
the surface modified substrates.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Citation
LIM, Y.Y., GOH, Y.M. and LIU, C., 2013. Surface treatments for inkjet printing onto a PTFE-based substrate for high frequency applications. Industrial and Engineering Chemistry Research, 52 (33), pp. 11564-11574.Publisher
© American Chemical SocietyVersion
- AM (Accepted Manuscript)
Publication date
2013Notes
This document is the Accepted Manuscript version of a Published Work that appeared in final form in the journal Industrial and Engineering Chemistry Research [copyright © American Chemical Society] after peer review and technical editing by the publisher. To access the final edited and published work see: http://pubs.acs.org/doi/abs/10.1021/ie4006639ISSN
0888-5885eISSN
1520-5045Publisher version
Language
- en