Mechanical Characterization of Ink-Jet Printed Ag Samples on Different Substrates

Part 6: Computational Systems ApplicationsInternational audienceIn this paper, the main activity was to investigate how different substrates, temperature of sintering and percentage of silver ink containing silver nanoparticles influence on Young’s modulus and hardness of printed silver thin samples. Samples were prepared by low cost ink-jet printing technique using Dimatix Material Printer on polyimide flexible substrate and slide glass. Characterization of these samples was carried out by Nano Indenter using a three sided pyramidal (Berkovich) diamond tip. Measurement results show that the thickness of ink-jet printed silver layer varies for different percent of nanoparticles in silver ink. All measurements were done at same depth of indentation to avoid possibility of perforation of printed layer. The higher temperature of sintering and the higher percent of silver nanoparticles give the bigger Young’s modulus and hardness of printed silver sample. This research provides very useful information about mechanical characterization of the silver layers on flexible substrates for printed-electronics

Printed 3-D Stacked Chipless RFID Tag with Spectral and Polarization Encoding Capacity

A fully printable 3D stacked chipless RFID tag on a 50-mu m thin polyimide film is presented. The tag consists of multi-layer cross-polarized dipole resonators which overlap. The data encoding is performed in the multiresonating circuit which is comprised of multiple stop band resonators. The resonators are printed using screen printing technology using a silver based conductive paste. The chipless RFID tag is designed specifically for security applications which are suitable for mass deployment for low cost items in trillions.International Spring Seminar on Electronics Technology ISSE, 39th International Spring Seminar on Electronics Technology (ISSE), May 18-22, 2016, Pilsen, Czech Republi

Printed 3-D Stacked Chipless RFID Tag with Spectral and Polarization Encoding Capacity

A fully printable 3D stacked chipless RFID tag on a 50-mu m thin polyimide film is presented. The tag consists of multi-layer cross-polarized dipole resonators which overlap. The data encoding is performed in the multiresonating circuit which is comprised of multiple stop band resonators. The resonators are printed using screen printing technology using a silver based conductive paste. The chipless RFID tag is designed specifically for security applications which are suitable for mass deployment for low cost items in trillions.International Spring Seminar on Electronics Technology ISSE, 39th International Spring Seminar on Electronics Technology (ISSE), May 18-22, 2016, Pilsen, Czech Republi

Transport Parameters of Inkjet Printed Nanoparticle Silver on Polyimide Substrate Measured at Room and Liquid Nitrogen Temperatures

This brief presents the transport parameters of silver layers on a polyimide substrate fabricated by an inkjet printing technology using nanoparticle inks with 20 wt% and 40 wt% silver. All the electrical characteristics of the samples were measured by Hall effect measurement system at 0.37 T. The electron mobility in inkjet printed silver layer was 7.07 and 4.58 cm(2)/V s for 20 wt% silver, 29.6 and 21.3 cm(2)/V s for 40 wt% silver at 77 and 300 K, respectively. The resistivity in inkjet printed silver layer with 20 wt% is 20.6 x 10(-6) and 27.1 x 10(-6) Omega cm, and 4.81 x 10(-6) and 8.27 x 10(-6) Omega cm for 40 wt% silver at 77 and 300 K, respectively. The surface morphology and profiles of the samples were obtained with an atomic force and scanning electron microscope

Improved Performance of Multilayer CPW Inductors on Flexible Substrate

In this paper, we present the modeling, fabrication, measurement techniques, and characterization results of multilayer miniature coplanar waveguide (CPW) meander-type inductors for high-frequency applications. Detailed procedure of the fabrication process based on using ink-jet printing technology is given. Silver nanoparticle ink that contains 20 wt% of silver was printed on a flexible polyimide foil 50 mu m thick in one, two, and three layers. It is shown that multilayer CPW inductors have improved performance. Almost two times better Q-factor value was achieved. This is an encouraging result for multilayer printing in ink-jet technology