Title :
16.3 Flexible thin-film NFC tags powered by commercial USB reader device at 13.56MHz
Author :
Myny, Kris ; Cobb, Brian ; van der Steen, Jan-Laurens ; Tripathi, Ashutosh K. ; Genoe, Jan ; Gelinck, Gerwin ; Heremans, Paul
Author_Institution :
Imec, Heverlee, Belgium
Abstract :
Our goal is to create thin low-cost flexible NFC tags to allow everyday objects to communicate to smartphones and computers and thus participate in the Internet of Things. We employ amorphous Indium-Gallium-Zinc-Oxide (a-IGZO) thin-film transistor circuits processed at low temperatures, less than 250C, directly on thin polyester substrates. Reaching NFC standards with a-IGZO circuits is challenging because the technology is n-type only and the electron mobility (~15cm7Vs) is lower compared to silicon. As the main result, we show that the most important NFC regulatory standards are met, even with relaxed 5 micron design rules, using optimized design topologies.
Keywords :
II-VI semiconductors; Internet of Things; amorphous semiconductors; electron mobility; indium compounds; peripheral interfaces; radiofrequency identification; semiconductor thin films; smart phones; telecommunication computing; thin film devices; wide band gap semiconductors; zinc compounds; InGa-ZnO; Internet of Things; NFC radio frequency identification; USB reader device; amorphous Indium-Gallium-Zinc-Oxide thin-film transistor circuits; computers; electron mobility; frequency 13.56 MHz; low-cost flexible thin film NFC tag; smartphones; thin polyester substrates; Generators; Logic gates; Radiofrequency identification; Thin film transistors; Topology; Voltage measurement;
Conference_Titel :
Solid- State Circuits Conference - (ISSCC), 2015 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4799-6223-5
DOI :
10.1109/ISSCC.2015.7063042
