Title: Smart RFID label printed on PET substrate with CMOS sensors
Authors : Vásquez-Quintero, A.
Frolet, N.
Lemaire, E.
Koller, M.
Furrer, L.
Graf, M.
Küng, Roland
Briand, D.
de Rooij, N.F.
Conference details: LOPEC, Munich, Germany, 26-28 May 2014
Issue Date: 2014
License (according to publishing contract) : Licence according to publishing contract
Type of review: Not specified
Language : English
Subjects : RFID; Electronics; Printed; Harvesting
Subject (DDC) : 004: Computer science
Abstract: The present work shows the fabrication of a printed RFID label using large-area printing processes, such as roto-screen and stencil printing, and the integration with advanced assembly methods of CMOS-based humidity and temperature sensors. The fabrication of the antenna and the PCB on flexible plastic substrates (i.e. polyethylene terephthalate - PET) was performed by means of roto-screen printing in combination with flash photonic sintering. This allows a high thermal transfer to the printed material, which is necessary for its sintering, while preserving the delicate polymeric substrate. Cost-effective and low temperature methods are also developed for the assembling of the components onto polymeric substrates. The electrical interconnections were stencil-printed with isotropic conductive adhesives by using laser-ablated stencil masks on polymer foils. Additionally, the label incorporates an RF remotely rechargeable thin film battery which is used for data logging. Finally, the roto-screen printing of copper oxide patterns and their reduction to copper by means of a Xenon flash photonic process is presented.
Departement: School of Engineering
Organisational Unit: Institute for Signal Processing and Wireless Communications (ISC)
Publication type: Conference poster
URI: https://digitalcollection.zhaw.ch/handle/11475/16698
Appears in Collections:Publikationen School of Engineering

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