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Going Beyond Moore's Law By ­sing the Third Dimension

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conductive particle attracted to disclination line

Illustration of a conductive particle attracted to a disclination line that joins two electrodes at points P and Q.

Credit: Fleury, et al. / IPCM

Institute of Physics and Chemistry of Materials of Strasbourg (IPCM) researchers have manufactured microwires that self-assemble themselves into a three-dimensional (3D) template and connect to electrodes with an accuracy of a few micrometers.

IPCM's Jean-Baptiste Fleury, David Pires, and Yves Galerne started by filling the space between two substrates with a nematic liquid crystal. The scientists then created a defect line in the liquid crystal, which enabled them to produce a programmable disclination. The nematic liquid crystals also attract small objects to the disclinations.

"As far as I know, there are no other means, at the moment, able to produce microwires self-connected in 3D on designed electrodes," Galerne says. The researchers think the process can be extended to produce large numbers of microwires, which could lead to the development of large-scale 3D integrated circuits.

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Abstracts Copyright © 2010 Information Inc., Bethesda, Maryland, USA


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