Back to Search Start Over

Measurement of the Conductivity of Screen Printing Films at Microwave Frequency Employing Resonant Method

Authors :
Xin Ding
Huating Tu
Jiyong Hu
Source :
Journal of Electronic Materials. 50:521-527
Publication Year :
2020
Publisher :
Springer Science and Business Media LLC, 2020.

Abstract

The conductivity of screen printing films at microwave frequency is one of the most important properties of conductive ink when applied in printed electronics. However, the existing methods of conductivity characterization at microwave frequency focus on homogeneous metal films or semiconductors, which are not suitable for conductive composite materials with poor thickness uniformity, like screen printing films. In this research, by applying a classic stripline ring resonator, a rigorous electromagnetic model was set up, and the conductivity of the screen printing film was able to be deduced by comparison between the measurement and simulation results. As a result, the equivalent conductivity of the film is 2 × 106 S/m at 1–3 GHz, which is a little higher than its average direct current conductivity of 1.82 × 106 S/m. This method has been proved to be feasible in measuring the conductivity of screen printing films at microwave frequency. Furthermore, it has great potential in the characterization of other printed conductive composite materials on rough surfaces, like textiles.

Details

ISSN :
1543186X and 03615235
Volume :
50
Database :
OpenAIRE
Journal :
Journal of Electronic Materials
Accession number :
edsair.doi...........bce3e461c9fe21d07de4c7a13054b9d2