Fluorescence microscopy for quality control in nanoimprint lithography

C Finder, Marc Beck, J Seekamp, K Pfeiffer, P Carlberg, Ivan Maximov, F Reuther, Eva-Lena Sarwe, S Zankovich, J Ahopelto, Lars Montelius, C Mayer, CMS Torres

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

11 Citations (SciVal)


Fluorescence microscopy is introduced as a low cost quality control process for nanoimprint lithography. To depict imprinted structures down to 1 mum lateral size and to detect residues down to 100 nm lateral size, the standard printable polymer mr-18000 is labelled with less than 0.1 wt.% fluorescent dye. Three different types of stamps are used to determine the dependence of the shape and size of stamp features in a series of imprints. The quality of a stamp is given by the sticking polymer residues per unit area. Fluorescence light images as well as visible light images are analysed. Changes in the area of the stamp covered with polymer as a function of the number of imprints is summarised in a statistical process chart. Adhesion was artificially induced in order to observe self cleaning of virgin stamps. They were detected and monitored, suggesting that this method is a suitable technique for quality control and that it could be easily adapted to the nanoimprint process. (C) 2003 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Title of host publicationMicroelectronic Engineering (Proceedings of the 28th International Conference on Micro- and Nano-Engineering)
Publication statusPublished - 2003
Event28th International Conference on Micro- and Nano-Engineering, 2002 - Lugano, Switzerland
Duration: 2002 Sep 162002 Sep 19
Conference number: 28

Publication series

ISSN (Print)1873-5568
ISSN (Electronic)0167-9317


Conference28th International Conference on Micro- and Nano-Engineering, 2002

Subject classification (UKÄ)

  • Condensed Matter Physics


  • stamp
  • quality control
  • fluorescence microscopy
  • nanoimprint lithography
  • polymer


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