Shape control in wafer-based aperiodic 3D nanostructures

Controlled local fabrication of three-dimensional (3D) nanostructures is important to explore and enhance the function of single nanodevices, but is experimentally challenging. We present a scheme based on e-beam lithography (EBL) written seeds, and glancing angle deposition (GLAD) grown structures to create nanoscale objects with defined shapes but in aperiodic arrangements. By using a continuous sacrificial corral surrounding the features of interest we grow isolated 3D nanostructures that have complex cross-sections and sidewall morphology that are surrounded by zones of clean substrate.

Hyeon-Ho Jeong, Andrew G Mark, John G Gibbs, Thomas Reindl, Ulrike Waizmann, Jürgen Weis and Peer Fischer

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