Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Novel CU-Boulder Technique Shrinks Size of Nanotechnology Circuitry

Abstract:
A University of Colorado at Boulder team has developed a new method of shrinking the size of circuitry used in nanotechnology devices like computer chips and solar cells by using two separate colors of light.

Novel CU-Boulder Technique Shrinks Size of Nanotechnology Circuitry

Boulder, CO | Posted on April 16th, 2009

Like current methods in the nanoengineering field, one color of light inscribes a pattern on a substrate, said CU-Boulder Assistant Professor Robert McLeod of the electrical, computer and energy engineering department. But the new system developed by McLeod's team uses a second color to "erase" the edges of the pattern, resulting in much smaller structures.

The team used tightly focused beams of blue light to record lines and dots thousands of times smaller than the width of a human hair into patterned lithography on a substrate, said McLeod. The researchers then "chopped off the edges" of the lines using a halo of ultraviolet light, trimming the width of the lines significantly.

"We are essentially drawing a line with a marker on a nanotechnology scale and then erasing its edges," said McLeod. The method offers potential new approaches in the search for ways to shrink transistor circuitry, a process that drives the global electronic market that is pursuing smaller, more powerful microchips, said McLeod.

A paper on the subject was published in the April 10 issue of Science Express, the online version of Science magazine. CU-Boulder co-authors included Timothy Scott and Christopher Bowman of the chemical and biological engineering department and graduate students Benjamin Kowalski and Amy Sullivan of the electrical, computer and energy engineering department. Sullivan is now a professor at Agnes Scott College in Decatur, Ga.

For the project, McLeod and his team used a tabletop laser to project tightly focused beams of visible blue light onto liquid molecules known as monomers. A chemical reaction initiated a bonding of the monomers into a plastic-like polymer solid, he said. If the beam was focused in one place, it inscribed a small solid dot. If the beam was moving the focus through the material, it created a thin thread, or line.

The researchers then added a second ultraviolet laser focused into a halo, or donut, which surrounded the blue light. The special monomer formulation was designed to be inhibited by the UV light, shutting down its transformation from a liquid to a solid, he said. This "halo of inhibition" prevented the edges of the spot or line from developing, resulting in a much finer final structure.

The process may be another step in "Moore's Law," a trend described by Intel co-founder George Moore in 1965, which predicted that the number of transistors that can be placed on a single integrated circuit doubles about every 18 months. Since the technology industry is driven by Moore's Law, a stall in such advances would cause huge shockwaves for companies that make chips to power up devices like digital cameras, Blackberries and iPods even as they shrink them.

The new technology has the potential to lead to the construction of a variety of nanotechnology devices, including "nanomotors," said McLeod. "We now have a set of new tools. We believe this is a new way to do nanotechnology."

The research effort was funded by the National Science Foundation and through the University of Colorado Innovative Seed Program. A preliminary patent based on the technology has been filed by the CU-Boulder research team.

####

For more information, please click here

Contacts:
Robert McLeod
303-735-0997

Jim Scott
303-492-3114

Copyright © University of Colorado at Boulder

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

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

New Antibacterial Wound Dressing in Iran Can Display Replacement Time May 22nd, 2015

Haydale Named Lead Sponsor for Cambridge Graphene Festival May 22nd, 2015

Simulations predict flat liquid May 21st, 2015

Govt.-Legislation/Regulation/Funding/Policy

Nanotherapy effective in mice with multiple myeloma May 21st, 2015

Turn that defect upside down: Twin boundaries in lithium-ion batteries May 21st, 2015

INSIDDE: Uncovering the real history of art using a graphene scanner May 21st, 2015

SUNY Poly CNSE and NIOSH Launch Federal Nano Health and Safety Consortium: May 20th, 2015

Nanoelectronics

Random nanowire configurations increase conductivity over heavily ordered configurations May 16th, 2015

Channeling valleytronics in graphene: Berkeley Lab researchers discover 1-D conducting channels in bilayer graphene May 6th, 2015

A better way to build DNA scaffolds: McGill researchers devise new technique to produce long, custom-designed DNA strands May 6th, 2015

Surface matters: Huge reduction of heat conduction observed in flat silicon channels April 23rd, 2015

Discoveries

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

New Antibacterial Wound Dressing in Iran Can Display Replacement Time May 22nd, 2015

Nanotherapy effective in mice with multiple myeloma May 21st, 2015

Turn that defect upside down: Twin boundaries in lithium-ion batteries May 21st, 2015

Announcements

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

New Antibacterial Wound Dressing in Iran Can Display Replacement Time May 22nd, 2015

Haydale Named Lead Sponsor for Cambridge Graphene Festival May 22nd, 2015

INSIDDE: Uncovering the real history of art using a graphene scanner May 21st, 2015

Energy

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

Sandia researchers first to measure thermoelectric behavior by 'Tinkertoy' materials May 20th, 2015

Industrial Nanotech, Inc. Announces Official Launch of the Eagle Platinum Tile™ May 19th, 2015

FEI and Weatherford Enter Into Joint Agreement for Advanced Reservoir Characterization Services May 18th, 2015

Solar/Photovoltaic

Efficiency record for black silicon solar cells jumps to 22.1 percent: Aalto University's researchers improved their previous record by over 3 absolute percents in cooperation with Universitat Politècnica de Catalunya May 18th, 2015

Wearables may get boost from boron-infused graphene: Rice U. researchers flex muscle of laser-written microsupercapacitors May 18th, 2015

Random nanowire configurations increase conductivity over heavily ordered configurations May 16th, 2015

ORNL demonstrates first large-scale graphene fabrication May 14th, 2015

Construction

Iranian Scientists Present Model to Study Mechanical Vibrations of Structures Containing Nanocomposites May 5th, 2015

Nanoparticles Used to Improve Mechanical, Thermal Properties of Cellulose Fibers April 23rd, 2015

Blue Star Opportunities Corp. (BSTO) Completes Major Condo Building Project in Manhattan Residential Area; Company Now Has the Resources to Service the Largest of Construction Projects April 21st, 2015

To Conserve London's 300-Year-Old Masterpiece, Nanotech & Drones April 12th, 2015

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