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Fast nanolithography technique developed

[b]ATLANTA, Sept. 11 (UPI) -- U.S. scientists have developed a nanolithography technique that's extremely fast and capable of being used in a range of environments.[/b]

Georgia Institute of Technology researchers said the technique, known as thermochemical nanolithography, might allow industry to produce a variety of nanopatterned structures, including nanocircuits, at a speed and scale that could make their manufacture commercially viable.

Using an atomic force microscope, researchers heat a silicon tip and run it over a thin polymer film. The heat from the tip induces a chemical reaction at the surface of the film that changes the film's chemical reactivity and transforms it from a hydrophobic substance to a hydrophilic one that can stick to other molecules.

Using the new technique, researchers were able to pattern with dimensions down to 12 nanometers in width in a variety of environments.

The research, which has potential applications in electronics, nanofluidics and medicine, appeared earlier this year in the journal Nano Letters.

[i]Copyright 2007 by United Press International. All Rights Reserved.[/i]
Source: [url]http://www.sciencedaily.com/upi/index.php?feed=Science&article=UPI-1-20070911-12315500-bc-us-nanolithography.xml[/url]

I give the pdf file of Nano Letters!

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