Organic RFID: RFID technology in the future development of a new hope (1)

Recently, there have been many advances in organic RFID tags (also known as plastic electronic label) reports, the reports are all agreed that these low-cost, flexible label sale time as soon as possible.

Background

Organic RFID tags from tiered conductive and non-conductive material such as plastic, this approach can produce Silicon integrated circuits.

Organic RFID label work theory, structure, function and spectrum Division comparison with inorganic such as RFID and there is no significant difference between the two main difference is that the materials and processing technology. Inorganic RFID tag chip parts require a complex and expensive IC technology preparation in silicon chip, and then integrated with antenna parts together constitute the complete label. While organic RFID tags do not need in expensive clean rooms in pure silicon gasket, it can use a similar existing high-speed multi-colour printing presses in appliance printed out. Because the printing of electronic technology, organic thin film transistors to be able to make the circuit of the preparation in the cheap plastic substrates, roll to roll (R2R) printing technology for mass production of organic RFID tags, which not only reduces costs, and the labels themselves will have more flexibility (elastic mainly depends on the specific components of the "ink").

The present organic RFID tag chip manufacturing raw materials are mainly concentrated in CMOS (for metal oxide semiconductor).

According to the encyclopedia of the network CMOS technology, a remarkable feature is the "CMOS by PMOS and NMOS tube together, it is characterized by low power consumption. As CMOS, one on MOS gate circuits consisting of, or in an instant, or NMOS PMOS breakover, either as conduction, any given time only one circuit types in operation than linear transistor (BJT) efficiency is much higher, so power consumption is very low. While considering RFID labels required energy, it is clear the use of organic RFID tags to reduce power consumption.

In 2006, Germany PolyICGmbH & Co.KG developed using printing and roll to roll production of organic RFID tags, as the data saved with integrated 8-bit RFID tag that integrates hundreds of organic transistors, organic transistors used Semiconductor for Poly-3-alkylthiophene (P3AT).

In June 2007, PolyIC has developed a 32-bit and 64-bit storage of organic RFID tags, operating frequency 13.56MHz. At present, the fullest development of organic RFID tags in the operating frequency (HF) 13.56MHz. To date there were no in the UHF band of organic label report.

Read speed has always been organic RFID tag problems faced by the company PolyIC tags report claimed that its label maximum speed is 196Hz.

Obviously, organic RFID tags in speed is not dominant.

On the bright side, though the label's memory has always been very limited, but the current generations of organic RFID tags (including existing or under development) can support at least 96bit of EPCglobal data, and will also be having more memory.

Recently, the Netherlands and Belgium IMEC HolstCentre at ISSCC last published 128bit "organic RFID converter chip" technology. Although "performance indicators have yet to reach a practical level," but already has the required majority of RFID functionality is important for organic electronics.

In addition to the speed and memory problems, it is worth noting that the last five years, some scholars have claimed that the organic RFID tag technology will never achieve performance when approaching 13.56MHz.

Date of organic RFID tags can be used only for brand protection and ticket is not suitable for complex inventory management. In order to meet the needs of those they are best suited for the requirements of the application, you must also organic devices.

However, PolyIC produced organic RFID tag 10 months after the discovery of the characteristics of the product has not declined.

Therefore, the company believes that this wireless tags to ensure that more than 1 year of service life of components.

Organic RFID tags to open-loop system, the potential benefits

RFID application in open-loop system in a more obvious limitation is the label for one-time use.

Currently used in the manufacture of silicon chips, sometimes need a very expensive technology, but the use of silicon chips will also be a corresponding increase in the cost of the label.

Silicon-based inorganic RFID product read/write speed, performance and service life in many applications it is necessary, but in other applications may not be so important – this is the low cost of organic RFID tags can play a positive role.

Organic RFID tag cost only today the inorganic RFID tags at a fraction of the cost, according to the journal reports that all NatureMaterialsCommentary organic RFID tag costs will fall to each 0.01 ~ $ 0.02.

There is no doubt that the use of organic RFID tags will improve your ROI, and the need to more cost-effective when commodity labeling.

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