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Flying
lenses promise cheap chips
Float
a set of lenses an infinitesimal distance above a rapidly spinning disk
and you have the makings of an inexpensive way to manufacture computer chips.
An array of metal lenses positioned 20 nanometers above a spinning disk focuses light well below its wavelength, producing lines as narrow as 80 nanometers on the disk.
The flying lens array, which resembles a disk drive read/write head, could be used to make computer chips and other nanoscale electronics more cheaply than traditional chip making techniques and faster than other maskless techniques.
Research paper:
Flying Plasmonic Lens in the near Field for High-speed Nanolithography
Nature Nanotechnology, published online October 12, 2008
Researchers' homepages:
Xiang Zhang
David B. Bogy
Back to TRN October 27/November 3, 2008
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