arcticstoat writes in with word that scientists at the Space Nanotechnology Laboratory at MIT have found a new way of extending Moore's law into the future — they have succeeded in etching a grid of 25nm lines into a silicon wafer. The article notes that this technique could be used for writing the grid on which chips are laid down, but that the electronic elements would have to be written using more complex techniques. "[Researchers] created an interference pattern using light from a laser with a wavelength of 351 nm. The pattern consists of alternating light and dark zones repeating every 200 nm. This allowed them to etch 25-nm lines into a silicon wafer, each 175 nm apart. They then repeated the process three times, each time shifting the interference pattern by 50 nm and etching another 25-nm groove. The resulting grid has alternating 25-nm stripes and grooves..."
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