Thursday, May 17, 2012

US Patent 8178165 - Fabricating a long-range ordered periodic array of nano-features

The use of nanoporous templates and self-assembly are common techniques for nanoscale fabrication but have a limited footprint for the area of fabrication. This patent based on research from the University of California teaches a way to extend nanoscale patterned areas to the order of square centimeters. Claim 1 reads:

1. A nanoscale patterning method, comprising:

disposing a material to be patterned on a substrate, wherein the material comprises an ordered region of periodically arranged nano-features; and

moving a heat source relative to the material at a non-uniform sweeping speed to induce an expansion of the ordered region, thereby patterning the material with a long-range ordered periodic array of nano-features