研究目的
To demonstrate that despite the low intrinsic performance of organic electronics, plastic RFID tags could meet specifications and requirements set for Si-based RFID tags, focusing on compatibility with EPC standards for item-level tagging.
研究成果
The research demonstrates significant progress toward meeting EPC specifications for item-level tagging with plastic RFID tags, including achieving bi-directional communication and integrating anti-collision protocols. However, further work is needed to develop programmable memory arrays and reduce operational voltages.
研究不足
The main limitation is the lack of programmable memory arrays, which requires more complex designs and increased robustness against parameter variations. Additionally, the high back-gate voltages needed for dual-gate technologies pose a challenge for practical implementation.
1：Experimental Design and Method Selection:
The designs were realized by following a full-custom, transistor-level design flow, taking into account the variability of the devices. Mismatch simulations were performed on basic gates to obtain the most appropriate sizing while maximizing robustness.
2：Sample Selection and Data Sources:
The technology used includes organic bottom-gate thin-film transistors on plastic substrates, with components like inductor coils, capacitors, rectifiers, and transponders fabricated on flexible foils.
3：List of Experimental Equipment and Materials:
Includes etched copper coils, PEN foil substrates, Parylene diX SR as insulator, pentacene as organic semiconductor, and aluminum as cathode.
4：Experimental Procedures and Operational Workflow:
The process involves photolithography for defining capacitors, evaporation of pentacene through shadow masks, and interconnection of foils via sockets or lamination with conductive glue.
5：Data Analysis Methods:
The performance of RFID tags was evaluated based on data rates, operational voltages, and compatibility with EPC standards.
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