Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Imec paves the way for intelligent item-level RFID tagging to replace bar codes: World-first UHF IGZO Schottky diode is breakthrough achievement towards low-cost passive thin-film RFID tags

Imec’s world-first ultrahigh frequency IGZO Schottky diode
Imec’s world-first ultrahigh frequency IGZO Schottky diode

Abstract:
At this week's IEEE International Electron Devices Meeting (IEDM 2012), imec presented the world-first ultra-high frequency Schottky diode based on amorphous IGZO (Indium-Gallium-Zinc Oxide) as semiconductor. This breakthrough achievement will enable the development of thin-film passive UHF (ultra-high frequency) RFID (radiofrequency ID) tags to replace item-level bar codes.

Imec paves the way for intelligent item-level RFID tagging to replace bar codes: World-first UHF IGZO Schottky diode is breakthrough achievement towards low-cost passive thin-film RFID tags

San Francisco, CA | Posted on December 11th, 2012

Passive intelligent item-level RFID tags are ideal for the retail sector and enable more accurate tracking of individual products (i.e. expiration, misplacement, theft, etc). Unlike bar codes which require one-per-one scanning by the reader, UHF RFID-tags could be scanned all together. However, today's UHF silicon-based RFID technology is too expensive for mass-market retail applications. Imec's research aims to dramatically reduce the cost of the entire RFID by combining ultra high frequency (UHF) operation with a thin-film-based technology. UHF RFID tags have a long reading range (5 to 10 meters) and employ small, printed, low-cost antennas. Compared to Silicon, IGZO based technology has the potential to result in a low-cost solution, since IGZO thin film active devices are fabricated using a cheaper, low-temperature process. This allows the development of chips direct on a plastic foils, such as on the product package. However, IGZO has intrinsically a lower performance than conventional Silicon and other conventional crystalline semiconductors. Therefore, it is a challenge to fabricate ultra-fast active devices based on IGZO.



The diode is the fundamental block in the power supply generator of passive, i.e., battery-less tags. It rectifies the carrier wave captured by the antenna and feeds the power supply on the tag. IGZO is an amorphous semiconductor with gap states that impede the formation of a stable Schottky barrier, irrespective of the metal used. To achieve a stable Schottky barrier, imec developed specific plasma and anneal treatments that alter the chemistry of the Schottky interface. The resulting IGZO Schottky diodes have a rectification ratio of up to nine orders of magnitude (at +1V and -1V), current densities of up to 800A/cm2 at forward bias of 1V, and a cut-off frequency of 1.8 GHz. When incorporated in a single stage rectifier, the cut-off frequency is 1.1GHz. The rectifiers are demonstrated to operate at ultra-high frequency (868MHz) with low losses.

This achievement, together with imec's recent demonstration of a functioning bidirectional thin-film RFID circuit (at ISSCC2012), are critical research development steps towards the realization of intelligent item-level tagging with broad implementation opportunities in the retail sector. The research on thin-film UHF RFID technology is supported by the EU FP7-ICT-247798 project ORICLA. Project partners include the project coordinator imec (Belgium), Holst Centre - TNO (The Netherlands), Evonik Industries AG (Germany), and PolyIC (Germany).

####

About IMEC
Imec performs world-leading research in nanoelectronics. Imec leverages its scientific knowledge with the innovative power of its global partnerships in ICT, healthcare and energy. Imec delivers industry-relevant technology solutions. In a unique high-tech environment, its international top talent is committed to providing the building blocks for a better life in a sustainable society. Imec is headquartered in Leuven, Belgium, and has offices in Belgium, the Netherlands, Taiwan, US, China, India and Japan. Its staff of close to 2,000 people includes more than 600 industrial residents and guest researchers. In 2011, imec's revenue (P&L) was about 300 million euro. Further information on imec can be found at www.imec.be.

Imec is a registered trademark for the activities of IMEC International (a legal entity set up under Belgian law as a "stichting van openbaar nut”), imec Belgium (IMEC vzw supported by the Flemish Government), imec the Netherlands (Stichting IMEC Nederland, part of Holst Centre which is supported by the Dutch Government), imec Taiwan (IMEC Taiwan Co.) and imec China (IMEC Microelectronics (Shangai) Co. Ltd.) and imec India (Imec India Private Limited).

For more information, please click here

Copyright © IMEC

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

CiQUS researchers design an artificial nose to detect DNA differentiation with single nucleotide resolution September 18th, 2014

Big Results Require Big Ambitions: Three young UCSB faculty receive CAREER awards from the National Science Foundation September 18th, 2014

FEI Opens New Technology Center in Czech Republic: FEI expands its presence in Brno with the opening of a new, larger facility September 18th, 2014

Biosensors Get a Boost from Graphene Partnership: $5 Million Investment Supports Dozens of Jobs and Development of 300mm Fabrication Process and Wafer Transfer Facility September 18th, 2014

Thin films

Beneq launches nFOG™ wet coating technology September 3rd, 2014

Picosun joins forces with IMEC for novel, industrial ALD applications August 25th, 2014

An Inkjet-Printed Field-Effect Transistor for Label-Free Biosensing August 11th, 2014

Advanced thin-film technique could deliver long-lasting medication: Nanoscale, biodegradable drug-delivery method could provide a year or more of steady doses August 6th, 2014

Chip Technology

IEEE International Electron Devices Meeting To Celebrate 60th Anniversary as The Leading Technical Conference for Advanced Semiconductor Devices September 18th, 2014

‘Small’ transformation yields big changes September 16th, 2014

Excitonic Dark States Shed Light on TMDC Atomic Layers: Berkeley Lab Discovery Holds Promise for Nanoelectronic and Photonic Applications September 11th, 2014

Researchers Create World’s Largest DNA Origami September 11th, 2014

Announcements

Wear-resistant ceramic powder maximises component lifespan in high-stress applications: Innovnano’s nanostructured 3YSZ offers improved tribological performance for manufacturing components September 18th, 2014

IEEE International Electron Devices Meeting To Celebrate 60th Anniversary as The Leading Technical Conference for Advanced Semiconductor Devices September 18th, 2014

FEI Opens New Technology Center in Czech Republic: FEI expands its presence in Brno with the opening of a new, larger facility September 18th, 2014

Biosensors Get a Boost from Graphene Partnership: $5 Million Investment Supports Dozens of Jobs and Development of 300mm Fabrication Process and Wafer Transfer Facility September 18th, 2014

Events/Classes

IEEE International Electron Devices Meeting To Celebrate 60th Anniversary as The Leading Technical Conference for Advanced Semiconductor Devices September 18th, 2014

PEN Inc. Chairman, Scott Rickert, Will Webcast a Live Company Update September 25, 1 PM EDT September 17th, 2014

Dolomite to launch Meros TCU-100 temperature controller at Lab-on-a-Chip & Microarray World Congress September 15th, 2014

Seeking Nanoscale Defenses for Biological and Chemical Threats: WPI co-organizes a NATO workshop to improve the detection and decontamination of biological and chemical agents September 13th, 2014

RFID

LogiTag’s Active RTLS Solution Selected by Hebrew University Nano Labs to Safeguards and Monitor Students and Staff May 13th, 2014

Leti and Partners in SOCRATE Project Focusing on Miniature Antennas with Super-Directivity Radiation Properties: Improving Directivity of Small Antennas Would Enhance Spectral Efficiency, Reduce Environmental Impact and Increase Functionality July 15th, 2013

IDTechEx launches online Market Intelligence Portal May 23rd, 2013

Mincom Capital Inc. and Group Nanoxplore Inc. Sign Letter of Intent for a Qualifying Transaction April 10th, 2013

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE