8 June 2010 Comprehensive simulation of SEM images taking into account local and global electromagnetic fields
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Proceedings Volume 7729, Scanning Microscopy 2010; 77290W (2010) https://doi.org/10.1117/12.859951
Event: Scanning Microscopy 2010, 2010, Monterey, California, United States
Abstract
We are reporting the development of a simulation tool with unique capabilities to comprehensively model an SEM signal. This includes electron scattering, charging, and detector settings, as well as modeling of the local and global electromagnetic fields and the electron trajectories in these fields. Experimental and simulated results were compared for SEM imaging of carbon nanofibers embedded into bulk material in the presence of significant charging, as well as for samples with applied potential on metal electrodes. The effect of the potentials applied to electrodes on the secondary emission was studied; the resulting SEM images were simulated. The image contrast depends strongly on the sign and the value of the potential. SEM imaging of nanofibers embedded into silicon dioxide resulted in the considerable change of the appeared dimensions of the fibers and as well as tone reversal when the beam voltage was varied. The results of the simulations are in agreement with experimental results.
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Sergey Babin, Sergey S. Borisov, Hiroyuki Ito, Andrei Ivanchikov, Dmitri Matison, Vladimir Militsin, Makoto Suzuki, "Comprehensive simulation of SEM images taking into account local and global electromagnetic fields", Proc. SPIE 7729, Scanning Microscopy 2010, 77290W (8 June 2010); doi: 10.1117/12.859951; https://doi.org/10.1117/12.859951
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