Fabricating Three-Dimensional Periodic Micro Patterns on Photo-Resists Using Laser Interference Lithography

作者:Roessler Florian; Lang Valentin; Guenther Denise; Lasagni Andres Fabian
来源:Advanced Engineering Materials, 2017, 19(5): 1600855.
DOI:10.1002/adem.201600855

摘要

Springtails are hexapods, which have a complex skin surface composed of periodically arranged mushroom-like features. This topography offers surface functionalities like non-wetting and preventing bacterial settlement. This study demonstrates a novel way of replicating the morphology of the springtail skin using interference lithography. The micro patterns are produced with an undercut contour in a multilayer resist system on Si-wafers consisting of a lower lift-off resist and an upper photo-sensitive resist. After irradiation, several developing and rinsing steps are carried out to produce cavities in the lift-off resist layer with an undercut geometry directly below the SU-8 top layer.

  • 出版日期2017-5