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

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Nanobiotix: Update on Head and Neck Phase I/II Trial with NBTXR3 and Other program data presented at ImmunoRad 2018 September 20th, 2018

Possible Futures

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Leti Announces EU Project to Develop Powerful, Inexpensive Sensors with Photonic Integrated Circuits: REDFINCH Members Initially Targeting Applications for Gas Detection and Analysis For Refineries & Petrochemical Industry and Protein Analysis for Dairy Industry September 19th, 2018

Academic/Education

The Institute of Applied Physics at the University of Tsukuba near Tokyo in Japan uses Deben's ARM2 detector to better understand catalytic reaction mechanisms June 27th, 2018

Powering the 21st Century with Integrated Photonics: UCSB-Led Team Selected for Demonstration of a Novel Waveguide Platform Which is Transparent Throughout the MWIR and LWIR Spectral Bands June 19th, 2018

SUNY Poly Professor Eric Lifshin Selected for ‘Fellow of the Microanalysis Society’ Position for Significant Contributions to Microanalysis June 13th, 2018

Grand Opening of UC Irvine Materials Research Institute (IMRI) to Spotlight JEOL Center for Nanoscale Solutions: Renowned Materials Scientists to Present at the 1st International Symposium on Advanced Microscopy and Spectroscopy (ISAMS) April 18th, 2018

Chip Technology

Researchers managed to prevent the disappearing of quantum information September 14th, 2018

New devices based on rust could reduce excess heat in computers: Physicists explore long-distance information transmission in antiferromagnetic iron oxide September 14th, 2018

New photonic chip promises more robust quantum computers September 14th, 2018

How a tetrahedral substance can be more symmetrical than a spherical atom: A new type of symmetry September 14th, 2018

Self Assembly

DNA drives design principles for lighter, thinner optical displays: Lighter gold nanoparticles could replace thicker, heavier layered polymers used in displays’ back-reflectors June 27th, 2018

Collaboration yields discovery of 12-sided silica cages June 20th, 2018

Self-assembling 3D battery would charge in seconds May 22nd, 2018

Engineered polymer membranes could be new option for water treatment May 6th, 2018

Nanoelectronics

How a tetrahedral substance can be more symmetrical than a spherical atom: A new type of symmetry September 14th, 2018

Laser sintering optimized for printed electronics: New study sheds (laser) light on the best means of laying down thin-film circuitry September 13th, 2018

September 5th, 2018

Rice U. lab probes molecular limit of plasmonics: Optical effect detailed in organic molecules with fewer than 50 atoms September 5th, 2018

Discoveries

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

NUS researchers invent new test kit for quick, accurate and low-cost screening of diseases: Test results are denoted by a color change and could be further analyzed by a smartphone app, making it attractive as a point-of-care diagnostic device September 19th, 2018

Announcements

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Nanobiotix: Update on Head and Neck Phase I/II Trial with NBTXR3 and Other program data presented at ImmunoRad 2018 September 20th, 2018

Patents/IP/Tech Transfer/Licensing

Silvaco, Purdue team up to bring scalable atomistic TCAD solutions for next generation semiconductor devices and materials August 24th, 2018

CTI Materials drives nano commercialization with it's patented surfactant free nanoparticle dispersions August 15th, 2018

Sirrus's Issued Patent Portfolio Continues To Accelerate July 18th, 2018

Changing the grocery game: Manufacturing process provides low-cost, sustainable option for food packaging June 26th, 2018

Industrial

Graphene nanotubes outperform ammonium salts and carbon black in PU applications September 11th, 2018

Carbon in color: First-ever colored thin films of nanotubes created: A method developed at Aalto University, Finland, can produce large quantities of pristine single-walled carbon nanotubes in select shades of the rainbow; the secret is a fine-tuned fabrication process -- and a s August 29th, 2018

Connecting the (Nano) Dots: NIST Says Big-Picture Thinking Can Advance Nanoparticle Manufacturing August 22nd, 2018

A colossal breakthrough for topological spintronics: BiSb expands the potential of topological insulators for ultra-low-power electronic devices August 2nd, 2018

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project