Friday, May 27, 2016
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Samsung Galaxy C5 and C7 Released In China
SSD Adoption in Notebooks To Increase This Year As TLC NAND Market Matures
Samsung To Launch "Samsung Pay Mini" Online Payments App
Facebook Publishers To Show Ads To Everyone
Samsung and Warner Bros. Release The Samsung Galaxy S7 edge Injustice Edition
Acer At Computex 2016
Google Wins Oracle in Android Trial
Microsoft and Facebook To Link America With Europe Through 6,600 km Long Cable
Active Discussions
Which of these DVD media are the best, most durable?
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
Help make DVDInfoPro better with dvdinfomantis!!!
menu making
Optiarc AD-7260S review
cdrw trouble
 Home > News > General Computing > IBM Cla...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, December 22, 2008
IBM Claims World's Fastest Graphene Transistor


IBM Researchers today announced that they demonstrated the operation of graphene field-effect transistors at GHz frequencies, and achieved the highest frequencies reported so far using this non-silicon electronic material.

This accomplishment is an important milestone for the Carbon Electronics for RF Applications (CERA) program sponsored by DARPA, as part of the effort to develop the next-generation of communication devices.

Graphene is a special form of graphite, consisting of a single layer of carbon atoms packed in honeycomb lattice, similar to an atomic scale chicken wire. Graphene has attracted worldwide attention and activities because its unusual electronic properties may eventually lead to faster transistors than any transistors achieved so far.

The work is performed by inter-disciplinary collaboration at IBM T. J. Waston Research Center. "Integrating new materials along with the miniaturization of transistors is the driving force in improving the performance of next generation electronic chips," said IBM researchers involved in this project.



The operation speed of a transistor is determined by the size of the device and the speed at which electrons travel. The size dependence was one of the driving forces to pursue ever-shrinking Si transistors in semiconductor industries. A key advantage of graphene lies in the very high electron speed with which electrons propagate in it, essential for achieving high-speed, high-performance transistors.

Now, IBM scientists have fabricated nanoscale graphene field-effect transistors and demonstrated the operation of graphene transistors at the GHz frequency range. More importantly, the scaling behavior, i.e. the size dependence of the performance of the graphene transistors was established for the first time. The team found that the operation frequency increases with diminishing device dimension and achieved a cut-off frequency of 26 GHz for graphene transistors with a gate length of 150 nm, the highest frequency obtained for graphene so far.

IBM researchers expect that by improving the gate dielectric materials, the performance of these graphene transistors could be further enhanced. They expect that THz graphene transistors could be achieved in an optimized graphene transistor with a gate length of 50 nanometers. In the next phase, the IBM researchers also plan to pursue RF circuits based on these high-performance transistors.

The report on this work, entitled "Operation of Graphene Transistors at GHz Frequencies" is published today in the journal Nano Letters and can be accessed at http://pubs.acs.org/doi/abs/10.1021/nl803316h.


Previous
Next
RIAA to Stop Suing File Sharers        All News        NU Launched Slim Blu-ray combo external drive
RIAA to Stop Suing File Sharers     General Computing News      Joost Discontinues the Joost Software Application

Get RSS feed Easy Print E-Mail this Message

Related News
IBM Watson Will Be Trained To Tackle Cybercrime
IBM and SK Holdings C&C Alliance Brings Watson To South Korea
IBM Makes Quantum Computing Available on IBM Cloud
OpenPOWER Foundation Reveals New Servers
IBM, VMWare, To Accelerate Enterprise Hybrid Cloud Adoption
IBM To Buy Truven Health Analytics for $2.6 Billion
Western Digital Buys Storage And Memory Patents From IBM
IBM Forecasts Weak Earnings For 2016
IBM Remains First In Patents, Study Finds
IBM Opens Watson IoT Global Headquarters In Germany
IBM’s Watson Forecasts Products for Holiday Season
IBM, Xilinx target Intel With Chip Collaboration

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2016 - All rights reserved -
Privacy policy - Contact Us .