Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Next-Generation Nanoelectronics: A Decade of Progress, Coming Advances

Abstract:
Traditional silicon-based integrated circuits are found in many applications, from large data servers to cars to cell phones. Their widespread integration is due in part to the semiconductor industry's ability to continue to deliver reliable and scalable performance for decades.

Next-Generation Nanoelectronics: A Decade of Progress, Coming Advances

Chicago, IL | Posted on May 3rd, 2012

However, while silicon-based circuits continue to shrink in size in the relentless pursuit of Moore's Law — the prediction that the number of transistors that can fit on an integrated circuit doubles every two years — power consumption is rising rapidly. In addition, conventional silicon electronics do not function well in extreme environments such as high temperatures or radiation.

In an effort to sustain the advance of these devices while curbing power consumption, diverse research communities are looking for hybrid or alternative technologies. Nanoelectromechanical (NEM) switch technology is one option that shows great promise.

"NEM switches consist of a nanostructure (such as a carbon nanotube or nanowire) that deflects mechanically under electrostatic forces to make or break contact with an electrode," said Horacio Espinosa, James N. and Nancy J. Farley Professor in Manufacturing and Entrepreneurship at the McCormick School of Engineering at Northwestern University.

NEM switches, which can be designed to function like a silicon transistor, could be used either in standalone or hybrid NEM-silicon devices. They offer both ultra-low power consumption and a strong tolerance of high temperatures and radiation exposure.

Given their potential, the past decade has seen significant attention to the development of both hybrid and standalone NEM devices. This decade of progress is reviewed by Espinosa's group in the current issue of journal Nature Nanotechnology. Their review provides a comprehensive discussion of the potential of these technologies, as well as the primary challenges associated with adopting them.

For example, one longstanding challenge has been to create arrays of millions of the nanostructures, such as carbon nanotubes, that are used to make these NEM devices. (For perspective, modern silicon electronics can have billions of transistors on a single chip.) The researchers' review describes the methods demonstrated to date to create these arrays, and how they may provide a path to realizing hybrid NEM-CMOS devices on a mass scale.

Similarly, while individual NEM devices show extremely high performance, it has proven difficult so far to make them operate reliably for millions of cycles, which is necessary if they are to be used in consumer electronics. The review details the various modes of failure and describes promising methods for overcoming them.

An example of the advances that facilitate improved robustness of NEM switch technologies is reported in the current issue of Advanced Materials. Here Espinosa and his group show how novel material selection can greatly improve the robustness of both hybrid NEM-CMOS and standalone NEM devices.

"NEM devices with commonly-used metal electrodes often fail by one of a variety of failure modes after only a few actuation cycles," said Owen Loh, a PhD student at Northwestern University and co-author of the paper, currently at Intel.

Simply by replacing the metal electrodes with electrodes made from conductive diamond-like carbon films, the group was able to dramatically improve the number of cycles these devices endure. Switches that originally failed after fewer than 10 cycles now operated for 1 million cycles without failure. This facile yet effective advance may provide a key step toward realizing the NEM devices whose potential is outlined in the recent review.

The work reported in Advanced Materials was a joint collaboration between Northwestern University, the Center for Integrated Nanotechnologies at Sandia National Laboratories, and the Center for Nanoscale Materials at Argonne National Laboratories. Funding was provided by the National Science
Foundation, the Army Research Office, The U.S. Department of Energy, and the Office of Naval Research.

"Ultimately, realizing next-generation hybrid NEM-CMOS devices will enable continued scaling of the electronics that power numerous systems we encounter on a daily basis," Espinosa said. "At the same time, it will require continued push from the engineering, basic sciences, and materials science communities."

####

For more information, please click here

Contacts:
Megan Fellman

847-491-3115

Copyright © Northwestern University

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 Links

Read "Nanoelectromagnetic contact switches" in Nature Nanotechnology:

Read "Carbon-Carbon Contacts for Robust Nanoelectromechanical Switches" in Advanced Materials:

Related News Press

News and information

High-temperature plasmonics eyed for solar, computer innovation April 17th, 2014

INSCX™ exchange to present Exchange trade reporting mechanism for engineered nanomaterials (NMs) to UK regulation agencies, insurers and upstream/downstream users April 17th, 2014

Transparent Conductive Films and Sensors Are Hot Segments in Printed Electronics: Start-ups in these fields show above-average momentum, while companies working on emissive displays such as OLED are fading, Lux Research says April 17th, 2014

Harris & Harris Group Continues Its Blog Series to Highlight Most Impactful Portfolio Companies With Champions Oncology, Inc. April 17th, 2014

Laboratories

Scientists Capture Ultrafast Snapshots of Light-Driven Superconductivity: X-rays reveal how rapidly vanishing 'charge stripes' may be behind laser-induced high-temperature superconductivity April 16th, 2014

'Life Redesigned: The Emergence of Synthetic Biology' Lecture at Brookhaven Lab on Wednesday, April 30: Biomedical Engineer James Collins to Speak for BSA Distinguished Lecture Series April 16th, 2014

Relieving electric vehicle range anxiety with improved batteries: Lithium-sulfur batteries last longer with nanomaterial-packed cathode April 16th, 2014

Energy Research Facility Construction Project at Brookhaven Lab Wins U.S. Energy Secretary's Achievement Award April 16th, 2014

NEMS

LetiDays Grenoble to Present Multiple Perspectives on Development, Challenges and Markets for the IoT April 14th, 2014

Columbia engineers make world's smallest FM radio transmitter: Team demonstrates new application of graphene using positive feedback November 18th, 2013

Revisiting quantum effects in MEMS: New calculations shows that the influence of quantum effects on the operating conditions of nanodevices has, until now, been overestimated November 15th, 2013

Leti Workshop at IEDM 2013 Will Present Latest Advances in Cost-effective and Power-efficient Technologies for the Future of the Semiconductor Industry November 6th, 2013

Govt.-Legislation/Regulation/Funding/Policy

INSCX™ exchange to present Exchange trade reporting mechanism for engineered nanomaterials (NMs) to UK regulation agencies, insurers and upstream/downstream users April 17th, 2014

ECHA Planning Workshop on Regulatory Challenges in the Risk Assessment of Nanomaterials April 16th, 2014

UT Arlington physicist creates new nanoparticle for cancer therapy April 16th, 2014

Relieving electric vehicle range anxiety with improved batteries: Lithium-sulfur batteries last longer with nanomaterial-packed cathode April 16th, 2014

Nanoelectronics

Better solar cells, better LED light and vast optical possibilities April 12th, 2014

Catching the (Invisible) Wave: UC Santa Barbara researchers create a unique semiconductor that manipulates light in the invisible infrared/terahertz range, paving the way for new and enhanced applications April 11th, 2014

Nanotech Business Review 2013-2014 April 9th, 2014

Preview of Hands-on Nanotechnology Demos at ‘Chemistry of Wine’ Fundraiser to Show Nanotech Magic April 8th, 2014

Discoveries

High-temperature plasmonics eyed for solar, computer innovation April 17th, 2014

Scientists Capture Ultrafast Snapshots of Light-Driven Superconductivity: X-rays reveal how rapidly vanishing 'charge stripes' may be behind laser-induced high-temperature superconductivity April 16th, 2014

Scientists observe quantum superconductor-metal transition and superconducting glass: A team including MIPT physicist observed quantum superconductor-metal transition and superconducting glass April 16th, 2014

UT Arlington physicist creates new nanoparticle for cancer therapy April 16th, 2014

Announcements

High-temperature plasmonics eyed for solar, computer innovation April 17th, 2014

INSCX™ exchange to present Exchange trade reporting mechanism for engineered nanomaterials (NMs) to UK regulation agencies, insurers and upstream/downstream users April 17th, 2014

Transparent Conductive Films and Sensors Are Hot Segments in Printed Electronics: Start-ups in these fields show above-average momentum, while companies working on emissive displays such as OLED are fading, Lux Research says April 17th, 2014

Harris & Harris Group Continues Its Blog Series to Highlight Most Impactful Portfolio Companies With Champions Oncology, Inc. April 17th, 2014

Military

Tiny particles could help verify goods: Chemical engineers hope smartphone-readable microparticles could crack down on counterfeiting April 15th, 2014

Targeting cancer with a triple threat: MIT chemists design nanoparticles that can deliver three cancer drugs at a time April 15th, 2014

Scalable CVD process for making 2-D molybdenum diselenide: Rice, NTU scientists unveil CVD production for coveted 2-D semiconductor April 8th, 2014

Rebar technique strengthens case for graphene: Rice University lab makes hybrid nanotube-graphene material that promises to simplify manufacturing April 7th, 2014

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