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Abstract
Rotary letterpress and flexographic printing were investigated for their potential use in making electrically conductive structures. A variety of test patterns were designed to determine some of the printing process capabilities. Antennas for radio frequency identification tags were printed using these techniques. The ink used in this study was a dispersion of silver flakes, and organosilver compounds in an organic vehicle. A variety of printing parameters (inking time, inking speed, printing speed, and printing force) were studied. The printed test patterns and antennas were characterized by a profilometry, electron and optical microscopy, and electrical measurements.
Acknowlegdments
The authors would like to thank Donald Boyd, Ken C. Chin, William Garno, Frank Cost, and Michael Dwyer for their invaluable assistance with this project. The authors would also like to gratefully acknowledge support for this work from First in Class at RIT, the IT Collaboratory, the Printing Applications Laboratory, and The School of Print Media. The ink used in this work was donated by Parelec Inc. The authors would also like to thank Veeco Instruments and Zygo Corp. for conducting optical profilometry measurements on some of the samples used in this work.
