Systems and techniques for accommodating diffraction in the printing of
features on a substrate. In one implementation, a method includes
identifying a pair of features to be printed using a corresponding pair
of patterning elements and increasing a separation distance between the
pair of patterning elements while maintaining the sufficiently small
pitch between the corresponding imaged features. The pitch of the pair of
features can be sufficiently small that, upon printing, diffraction will
make a separation between the features smaller than a separation between
the corresponding pair of patterning elements.