Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Leti Achieves Groundbreaking Discovery in Using Copper-based Catalysts to Synthesize Silicon Nanowire

Abstract:
Project Demonstrates that Silicon Nanowire Synthesis can be CMOS-Compatible

Leti Achieves Groundbreaking Discovery in Using Copper-based Catalysts to Synthesize Silicon Nanowire

Grenoble, France | Posted on October 7th, 2009

Leti, the leading research and development institute focused on micro- and nano-technologies, announced today that it has broken new ground in the integration of nanotechnology with traditional complementary metal oxide semiconductor (CMOS) chip technology. CMOS is the most widely used technology for manufacturing silicon integrated circuits.

Leti researchers have demonstrated that the synthesis of silicon nanowire can be achieved at temperatures as low as 400 °C by using a copper-based catalyst and an unconventional preparation method. That is much lower than temperatures previously achieved for silicon nanowire synthesis using copper.

This technological breakthrough helps to bridge the gap between CMOS technology and the bottom-up growth of nanowires. It is expected to impact the IC markets by making it possible to add new non-digital functions - such as sensors and advanced photovoltaic architectures - to CMOS chip-making processes.

In a recently published Nature Nanotechnology article, Leti researchers explained that they achieved their breakthrough result by taking an approach transgressing a very well established axiom in nanowire growth. Previously, researchers have assumed that oxidized metals are not suitable for nanowire synthesis, so they usually have tried to remove the oxide. Leti achieved its industry-changing results by oxidizing the copper catalyst and using the high chemical activity of this oxide to reduce synthesis temperature of the nanowires. Leti's research shows that it is possible to grow silicon nanowires with a CMOS-compatible catalyst and at CMOS-compatible temperatures.

Independent thinking culture

"At Leti, we aim to produce knowledge that is usable by industry. This nanowire breakthrough is a beautiful illustration of our mission because the project was bound by industrial constraints from the start," said Leti CEO Laurent Malier. "Leti's unique ability to achieve these results stems from our long-term experience in industrial process development, and our broad range of complementary nano-characterization techniques. Leti's culture, which encourages independent thinking and the freedom to act upon it, was also a key component in this project."

Semiconductor nanowires, which offer a variety of potential uses, have been a subject of basic research for about 10 years. On one hand, in chemistry and biology, the interest is related to nanowires' high surface-to-volume ratio, which makes them well-suited for the electrical detection of chemical or biological substances. Their high surface-to-volume ratio may also be an advantage in solar energy production. Nanowires' small mass, on the other hand, makes them interesting for mechanical mass detection.

All of these potential applications have already been demonstrated by basic research, and technologists are excited about applying them in new devices. One promising idea is to implement new functions such as sensing and energy production on top of integrated circuits. Until now, computing has relied on external power and user input. Nanowire technology has the potential to create computing devices that benefit from both internally generated energy production and direct environmental input.

To view the article in Nature Nanotechnology, visit www.nature.com/nnano/journal/vaop/ncurrent/abs/nnano.2009.234.html

####

About CEA-Leti
CEA is a French Research and Technology Organization, with activities in three main areas: Energy, Technologies for Information and Healthcare, and Defence and Security. Within CEA, the Laboratory for Electronics & Information Technology (CEA-Leti) works with companies in order to increase their competitiveness through technological innovation and transfers. Leti is focused on micro and nanotechnologies and their applications, from wireless devices and systems, to biology and healthcare or photonics. Nanoelectronics and Microsystems (MEMS) are at the core of its activities. As a major player in the MINATEC® excellence center, Leti operates 8,000-m² state-of-the-art clean rooms, on 24/7 mode, on 200mm and 300mm wafer standards. With 1,200 employees, Leti trains more than 150 Ph.D. students and hosts 200 assignees from partner companies. Strongly committed to the creation of value for the industry, Leti puts a strong emphasis on intellectual property and owns more than 1,400 patent families. In 2008, contractual income covered more than 75 percent of its budget, which totalled 205 M€.

For more information, please click here

Contacts:
Clément Moulet, Press Officer
Tel.: +33 4 38 78 03 26

Copyright © CEA-Leti

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

Atom-thick CCD could capture images: Rice University scientists develop two-dimensional, light-sensitive material December 20th, 2014

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Instant-start computers possible with new breakthrough December 19th, 2014

Aculon Hires New Business Development Director December 19th, 2014

Possible Futures

A novel method for identifying the body’s ‘noisiest’ networks November 19th, 2014

Researchers discern the shapes of high-order Brownian motions November 17th, 2014

VDMA Electronics Production Equipment: Growth track for 2014 and 2015 confirmed: Business climate survey shows robust industry sector November 14th, 2014

Open Materials Development Will Be Key for HP's Success in 3D Printing: HP can make a big splash in 3D printing, but it needs to shore up technology claims and avoid the temptation of the razor/razor blade business model in order to flourish November 11th, 2014

Chip Technology

Instant-start computers possible with new breakthrough December 19th, 2014

Switching to spintronics: Berkeley Lab reports on electric field switching of ferromagnetism at room temp December 17th, 2014

Pb islands in a sea of graphene magnetise the material of the future December 16th, 2014

Stanford team combines logic, memory to build a 'high-rise' chip: Today circuit cards are laid out like single-story towns; Futuristic architecture builds layers of logic and memory into skyscraper chips that would be smaller, faster, cheaper -- and taller December 15th, 2014

Self Assembly

Revealed: How bacteria drill into our cells and kill them December 2nd, 2014

Live Images from the Nano-cosmos: Researchers watch layers of football molecules grow November 5th, 2014

Outsmarting Thermodynamics in Self-assembly of Nanostructures: Berkeley Lab reports method for symmetry-breaking in feedback-driven self-assembly of optical metamaterials November 4th, 2014

NYU Researchers Break Nano Barrier to Engineer the First Protein Microfiber October 23rd, 2014

Sensors

Promising new method for rapidly screening cancer drugs: UMass Amherst researchers invent fast, accurate new nanoparticle-based sensor system December 15th, 2014

Graphene Applied in Production of Recyclable Electrodes December 13th, 2014

Detecting gases wirelessly and cheaply: New sensor can transmit information on hazardous chemicals or food spoilage to a smartphone December 8th, 2014

Nanosensor to Detect Naproxen Drug Produced in Iran December 6th, 2014

Nanoelectronics

Stacking two-dimensional materials may lower cost of semiconductor devices December 11th, 2014

Defects are perfect in laser-induced graphene: Rice University lab discovers simple way to make material for energy storage, electronics December 10th, 2014

Nanoscale resistors for quantum devices: The electrical characteristics of new thin-film chromium oxide resistors that can be tuned by controlling the oxygen content detailed in the 'Journal of Applied Physics' December 9th, 2014

'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films November 26th, 2014

Announcements

Atom-thick CCD could capture images: Rice University scientists develop two-dimensional, light-sensitive material December 20th, 2014

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Instant-start computers possible with new breakthrough December 19th, 2014

Aculon Hires New Business Development Director December 19th, 2014

Solar/Photovoltaic

Oregon researchers glimpse pathway of sunlight to electricity: Collaboration with Lund University uses modified UO spectroscopy equipment to study 'maze' of connections in photoactive quantum dots December 19th, 2014

Lifeboat Foundation gives 2014 Guardian Award to Elon Musk December 16th, 2014

Stacking two-dimensional materials may lower cost of semiconductor devices December 11th, 2014

New Technique Could Harvest More of the Sun's Energy December 9th, 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