Cheap RFID printed on paper
A team of scientists led by Camille Ramade of the Institute of Electronics at the University of Montpellier found a way to apply RFID radio chips to paper by evaporation at high temperatures, while maintaining good metal conductivity. If the innovative technological process can be implemented on an industrial scale, this means a reduction in the cost of RFID by about 80% and a dramatic expansion of their scope. In fact, antennas can be glued anywhere, like paper stamps, so that RFID will finally displace uncomfortable barcodes and QR codes from the market.
Using evaporation reduces the size of the RFID and the amount of metal in each layer of the chip. The aluminum loop of the antenna in such a technological process is a thin film, the shape of which is set by the mask for evaporation. A laboratory experiment showed that RFID tags are perfectly readable from a paper chip.
In the future, this printing technique on paper or plastic can be used for other simple microcircuits - for example, for computer memory modules .
A detailed technical process for applying RFID to paper media is described in International Journal of Radio Frequency Identification Technology and Applications 2012 - Vol. 4, No. 1, pp. 49–66 .
via TechWeek Europe