|Title:||Smart RFID label printed on PET substrate with CMOS sensors|
|Authors :||Vásquez-Quintero, A.|
de Rooij, N.F.
|Conference details:||LOPEC, Munich, Germany, 26-28 May 2014|
|License (according to publishing contract) :||Licence according to publishing contract|
|Type of review:||Not specified|
|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|
|Appears in Collections:||Publikationen School of Engineering|
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