Robust Design of Digital Circuits on Foil || Design Case: RFID Tags

摘要： In this chapter, we have presented the designs and technology evolutions that will allow thin-film electronics on plastic foil to fulfill the required specifications for EPC item-level tagging. In particular, we have shown that many of these specifications can be met. A 64-bit organic RFID tag has been elaborated; it is inductively coupled at a base carrier frequency of 13.56 MHz. The complexity of the chip has been increased to a 128-bit transponder chip. Also a basic ALOHA anti-collision protocol and WORM memory have been integrated. EPC-based data rates of 50 kb/s have been reached by downscaling of the technology. These data rates could also be met by using high-performing metal-oxide transistors or by the integration of diode-load or complementary logic. Recently, we demonstrated the possibility for plastic RFID tags to implement a bi-directional communication to realize an anti-collision protocol.