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Technology update

Sep 29, 2008

Self-assembly goes square-shaped

Researchers in the US are the first to use self-assembly to make highly-ordered square arrays from block copolymers. Each square measures about 20 nm and the team believes that the technique could someday be used to make extremely small electronic devices. Until now, block-copolymer self-assembly methods could only produce hexagonal-shaped arrays, which are not compatible with the industrial processes used to make integrated circuits.

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