A manufacturing concept to fabricate working stamps with defined mesa structures using combined nanoimprint and photolithography is presented. OrmoStamp, an UV-curable organic-inorganic hybrid polymer, was used as mold material. 30 μm high large mesa structures (4×4 mm2) with sharp borders and almost vertical sidewalls were manufactured. On top they featured nanograting patterns with 200 nm height and lateral size as a surface relief. The good thermal decoupling of stamp body and imprinted substrate and the high planarity (divergence <50 nm) make the stamp very suitable for thermal step and repeat nanoimprint lithography of confined patterns with low stitching errors. Up to 210 imprints were performed with a single mesa into a 325 nm thin layer of mr-I 7030E.
|Number of pages||4|
|Journal||Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics|
|Publication status||Published - 2010|
|MoE publication type||A1 Journal article-refereed|
Schleunitz, A., Spreu, C., Haatainen, T., Klukowska, A., & Schift, H. (2010). Fabrication of mesas with micro- and nanopatterned surface relief used as working stamps for step and stamp imprint lithography. Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics, 28(6), c6m37-c6m40. https://doi.org/10.1116/1.3497022