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78‐4: IGZO‐based Identification Tags Communicating with Everyday Touchscreens
Author(s) -
Papadopoulos Nikolaos,
Celiker Hikmet,
Qiu Weiming,
Ameys Marc,
Smout Steve,
Willegems Myriam,
Deroo Filip,
van der Steen Jan-Laurens,
Kronemeijer Auke Jisk,
Dehouwer Marco,
Mityashin Alexander,
Gehlhaar Robert,
Dehaene Wim,
Myny Kris
Publication year - 2020
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14085
Subject(s) - touchscreen , capacitive sensing , thin film transistor , chip , computer science , electrical engineering , electronics , optoelectronics , voltage , materials science , computer hardware , engineering , nanotechnology , layer (electronics)
In this work, we demonstrate a capacitive coupled data transfer with flexible thin‐film electronics using touchscreen as ubiquitous reader interface. The capacitive communication to the touchscreen is proven using a 64‐bit metal‐oxide thin‐film capacitive‐coupled identification tag. The tag is powered by a thin film battery or thin‐film photovoltaic cell that is converting the light of the screen. The thin‐film integrated tag has on‐chip monolithic electrodes (0.8cm 2 ), and the integrated circuit employs 409 transistors and dissipates only 140nW of power at 600mV supply voltage. The asynchronous data rate of the chip is up to 35bps, strictly limited by the touchscreen readout electronics.