Low Temperature Direct-Write Fabrication of Radio Frequency Identification Circuit and Antenna Structures on Polymer Substrates
International Journal of Materials Science and Applications
Volume 3, Issue 3, May 2014, Pages: 84-87
Received: Mar. 26, 2014; Accepted: Apr. 16, 2014; Published: May 20, 2014
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Authors
Alu, Noble O., Physics Advanced Laboratory, Sheda Science & Technology Complex, P. M. B. 181, Garki - Abuja
Oberafo, Anthony A., Physics Advanced Laboratory, Sheda Science & Technology Complex, P. M. B. 181, Garki - Abuja
Iwok, Unwana U., Physics Advanced Laboratory, Sheda Science & Technology Complex, P. M. B. 181, Garki - Abuja
Adama, Kenneth K., Physics Advanced Laboratory, Sheda Science & Technology Complex, P. M. B. 181, Garki - Abuja
Imalerio, Thomas I., Physics Advanced Laboratory, Sheda Science & Technology Complex, P. M. B. 181, Garki - Abuja
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Abstract
We report the direct-write fabrication of electric circuits on polyethylene terephthalate (PET) substrates by a low temperature technique. To demonstrate the utility of the concept, Radio Frequency Identification Circuit and Antenna Structures were fabricated on polyethylene terephthalate (PET), using a 300 dpi drop-on-demand HP DeskJet system. First, each substrate was prepared by low frequency atmospheric plasma etching, followed by tin (II) chloride treatment to enhance wetting. Then a catalytic silver seed layer pattern was bubble-jet printed onto the surface. Finally, the substrate was developed in a copper electroless plating bath for 10 min. to yield a 2.5 µm copper film with a sheet resistance of 3.4 Ωsq. The as-deposited film was shiny with a surface roughness of less than 8.7nm, which is about 0.35% of the film thickness. The films were characterized by SEM, EDX, profilometry, optical microscopy, and four-point probe resistivity measurement. This technology may be adapted for the direct-write fabrication of antenna structures for communication devices and space science applications.
Keywords
Direct-Write Fabrication, Silver Seed Layer, Characterization
To cite this article
Alu, Noble O., Oberafo, Anthony A., Iwok, Unwana U., Adama, Kenneth K., Imalerio, Thomas I., Low Temperature Direct-Write Fabrication of Radio Frequency Identification Circuit and Antenna Structures on Polymer Substrates, International Journal of Materials Science and Applications. Vol. 3, No. 3, 2014, pp. 84-87. doi: 10.11648/j.ijmsa.20140303.12
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