Automatic detection of NIL defects using microscopy and image processing

David Pietroy, Issam Gereige, Cécile Gourgon

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Nanoimprint Lithography (NIL) is a promising technology for low cost and large scale nanostructure fabrication. This technique is based on a contact molding-demolding process, that can produce number of defects such as incomplete filling, negative patterns, sticking. In this paper, microscopic imaging combined to a specific processing algorithm is used to detect numerically defects in printed patterns. Results obtained for 1D and 2D imprinted gratings with different microscopic image magnifications are presented. Results are independent on the device which captures the image (optical, confocal or electron microscope). The use of numerical images allows the possibility to automate the detection and to compute a statistical analysis of defects. This method provides a fast analysis of printed gratings and could be used to monitor the production of such structures. © 2013 Elsevier B.V. All rights reserved.
Original languageEnglish (US)
Pages (from-to)163-167
Number of pages5
JournalMicroelectronic Engineering
StatePublished - Dec 2013

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work is supported by the NaPANIL european project.

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Condensed Matter Physics


Dive into the research topics of 'Automatic detection of NIL defects using microscopy and image processing'. Together they form a unique fingerprint.

Cite this