Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button

Home > Press > Growing Europe’s nanowires

Abstract:
European researchers have developed state-of-the-art nanowire ‘growing' technology, opening the way for faster, smaller microchips and creating a promising new avenue of research and industrial development in Europe.

Growing Europe’s nanowires

EU | Posted on January 6th, 2010

Nanowires are a promising new technology that could meet rapidly rising performance requirements for integrated circuit design over the next ten years. They are tiny wires just tens of nanometres in diameter and micrometers in length.

They could mean smaller, faster and lower power electronics, and lead to entirely novel architectures such as 3D microchips - a vertical stack of circuitry that can massively increase the size of circuits for the same footprint.

Nanowires are so narrow they are often called ‘one-dimensional' structures because the width of the wire constrains the sideways movement of electrons as they pass through the wire. Also, the cylindrical geometry allows the most efficient electrostatic gating technology.

Unsurprisingly at this scale, nanowires demonstrate many characteristics that offer the potential for novel circuits and architectures, and physicists are very excited. The Japanese pioneered the field with the USA taking up the work, and with a few European teams entering soon after.

Raising nanowires... and patents

But the Europeans are on their way. Recent work at the NODE project led to world-class technology and 40 patents. "Silicon technology becomes very challenging when you get down to 10-15nm," explains Lars Samuelson, director of the Nanometer Structure Consortium at Lund University and coordinator of the NODE project.

"One of the problems of the [current] top-down approach is that it introduces harsh environments and you end up with devices that may be dominated by defects."

NODE's nanowires are ‘grown' from the bottom up, like crystals, into vertical structures. "We call it ‘guided self-assembly', and it is a ‘bottom-up' process that can result in fewer defects," Samuelson says.

Vertical nanowires can consist of different materials, by simply altering the depositing material, so the wire takes on layers with different characteristics. "There are many potential opportunities for developing new technologies," he says. "This vertical arrangement may be the route to 3D circuit design as well as to realise monolithic on-chip optoelectronics."

NODE focused on combining silicon with indium arsenide (Si:InAs) and silicon with silicon germanium (Si:SiGe), two very promising materials. "Indium arsenide is inherently very fast and, as such, it was of particular interest to our work," remarks Samuelson.

Breakthroughs

The project looked at every link in the nanowire production chain, from growth, processing on an industrial scale, to characterisation and integration. "And one of the big challenges of the project was the integration of our work with current silicon processing technology, so there was a big effort on processing," Samuelson stresses.

For this, characterisation studies were important to examine the different materials used and the effects induced by the nanowire structure. NODE also examined the characteristics of potential devices, such as field effect transistors (FET). Finally, the team looked at integrating these devices into circuits.

It is a huge body of work and led to some real breakthroughs. "One of the breakthroughs was the... perfect deposition of high-K dielectrics coating the nanowires and serving as a dielectric in the wrap-gate transistors," reveals Samuelson. "We developed a very good technique for this."

High-K dielectrics overcome some of the limits of silicon dioxide at very small scales and are a promising strategy for further miniaturisation of integrated circuits.

"As part of this research, we have also encountered problems and possible roadblocks [to further] development, such as quite severe problems in growing Si nanowires using gold catalysts", adds Samuelson.

State of the art

"This technology is not ready for industrial applications, and whether it will be three, six or nine years before it appears industrially, I cannot say," Samuelson warns. "But we established the state of the art, we have the best results."

The project has announced Europe's entry into an exciting new field of nanotechnology and developed a core expertise on the continent. Over 100 scientific papers will emerge from the work when it finally winds down.

The development of European expertise could not come at a better time. Industrial players like IBM, Samsung and some of the leading Singapore labs began developing planar, or horizontal, nanowire technology shortly after NODE began their efforts. The technology is coming of age.

The NODE project received funding from the ICT strand of the EU's Sixth Framework Programme for research.

####

For more information, please click here

Copyright © ICT Results

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

Ageing can drive progress: Population ageing is likely to boost medicine, nanotechnology and robotics, but increase political risks July 27th, 2016

WSU researchers 'watch' crystal structure change in real time: Breakthrough made possible by new Argonne facility July 27th, 2016

Enhancing molecular imaging with light: New technology platform increases spectroscopic resolution by 4 fold July 27th, 2016

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

Possible Futures

Ageing can drive progress: Population ageing is likely to boost medicine, nanotechnology and robotics, but increase political risks July 27th, 2016

Enhancing molecular imaging with light: New technology platform increases spectroscopic resolution by 4 fold July 27th, 2016

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

Scientists test nanoparticle drug delivery in dogs with osteosarcoma July 26th, 2016

Academic/Education

The NanoWizard® AFM from JPK is applied for interdisciplinary research at the University of South Australia for applications including smart wound healing and how plants can protect themselves from toxins July 26th, 2016

News from Quorum: The College of New Jersey use the Quorum Cryo-SEM preparation system in a project to study ice crystals in high altitude clouds July 19th, 2016

Leti and Korea Institute of Science and Technology to Explore Collaboration on Advanced Technologies for Digital Era July 14th, 2016

SUNY Poly Celebrates Its 10th Year Exhibiting at SEMICON West with Cutting Edge Developments in Integrated Photonics and Power Electronics July 8th, 2016

Chip Technology

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

Nanometrics Reports Second Quarter 2016 Financial Results July 26th, 2016

Borrowing from pastry chefs, engineers create nanolayered composites: Method to stack hundreds of nanoscale layers could open new vistas in materials science July 25th, 2016

Integration of novel materials with silicon chips makes new 'smart' devices possible July 25th, 2016

Self Assembly

Accurate design of large icosahedral protein nanocages pushes bioengineering boundaries: Scientists used computational methods to build ten large, two-component, co-assembling icosahedral protein complexes the size of small virus coats July 25th, 2016

WSU researchers develop shape-changing 'smart' material: Heat, light stimulate self-assembly July 4th, 2016

Building a smart cardiac patch: 'Bionic' cardiac patch could one day monitor and respond to cardiac problems June 28th, 2016

Self-assembling icosahedral protein designed: Self-assembling icosahedral protein designed June 22nd, 2016

Nanoelectronics

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

Ultra-flat circuits will have unique properties: Rice University lab studies 2-D hybrids to see how they differ from common electronics July 25th, 2016

Borrowing from pastry chefs, engineers create nanolayered composites: Method to stack hundreds of nanoscale layers could open new vistas in materials science July 25th, 2016

Making magnets flip like cats at room temperature: Heusler alloy NiMnSb could prove valuable as a new material for digital information processing and storage July 25th, 2016

Discoveries

WSU researchers 'watch' crystal structure change in real time: Breakthrough made possible by new Argonne facility July 27th, 2016

Enhancing molecular imaging with light: New technology platform increases spectroscopic resolution by 4 fold July 27th, 2016

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

Scientists test nanoparticle drug delivery in dogs with osteosarcoma July 26th, 2016

Announcements

Ageing can drive progress: Population ageing is likely to boost medicine, nanotechnology and robotics, but increase political risks July 27th, 2016

WSU researchers 'watch' crystal structure change in real time: Breakthrough made possible by new Argonne facility July 27th, 2016

Enhancing molecular imaging with light: New technology platform increases spectroscopic resolution by 4 fold July 27th, 2016

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

Patents/IP/Tech Transfer/Licensing

Integration of novel materials with silicon chips makes new 'smart' devices possible July 25th, 2016

Research team led by NUS scientists develop plastic flexible magnetic memory device: Novel technique to implant high-performance magnetic memory chip on a flexible plastic surface without compromising performance July 21st, 2016

New nanoscale technologies could revolutionize microscopes, study of disease July 20th, 2016

Keystone Nano selected as a top scoring company by NCI investor review panel July 19th, 2016

Industrial

Scientists move 1 step closer to creating an invisibility cloak July 15th, 2016

Yale researchers’ technology turns wasted heat into power June 27th, 2016

Industrial Nanotech, Inc. Signs Agreement With and Receives First Purchase Order from Major New Customer in China June 6th, 2016

GLOBALFOUNDRIES to Expand Presence in China with 300mm Fab in Chongqing: Company plans new manufacturing facility and additional design capabilities to serve customers in China May 31st, 2016

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







Car Brands
Buy website traffic