Issue 19/2003 Inside Cover

Inside Cover:
On a smooth substrate, a block copolymer film forms 20 nm domains with short-range order (lower left). Shallow grooves in the substrate (background and left inset) result in a controlled domain alignment (upper right); edge features can also pin the lateral position of the array (lower right). Report by Ross and co-workers on p. 1599; art by F. Frankel and J. Cheng, MIT.

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