The purpose of this study was the development and testing of a near-field communication (NFC) tag for cold chain monitoring. In this paper, we validated the use of large-surface printing technologies to make a high-frequency antenna (13.56 MHz) and carbon-based temperature sensor on an Arjowiggins' Power-coat™ paper substrate. The printed temperature sensor was connected to the output of the analog-digital converter of a commercial microprocessor. A direct temperature reading interface was developed. The main objectives were to demonstrate the potential of screen printing processes for the development of an NFC tag, and to validate the use of a printed resistive sensor for cold chain monitoring. The validation was carried out through the comparison of a reference temperature recorded by a thermocouple regarding the temperature recorded by the external printed sensor in the case of a cold chain break simulation.
This paper describes a complete technology family for parallel optical interconnect systems. Key features are the two-dimensional on-chip optical access and the development of a complete optical pathway. This covers both chip-to-chip links on a single boards, chip-to-chip links over an optical backpanel, and even system-to-system interconnects. Therefore it is a scalable technology. The design of all parts of the link, and the integration of parallel optical interconnect systems in the design flow of electronic systems is presented in this paper
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