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Single-Digit Nanometer Electron-Beam Lithography with an Aberration-Corrected Scanning Transmission Electron Microscope
Published on: September 14, 2018
Aberration correction for low voltage optimized transmission electron microscopy
1DELONG INSTRUMENTS a.s., Palackého třída 3019/153 b, 612 00 Brno, Czech Republic.
Abstract:
Further development of low voltage electron microscopy leads to an aberration correction of the device in order to improve its spatial resolution. The integration of a corrector to a desktop transmission electron microscope with exclusively low-voltage design seems to be a challenging task. The benefits and potential of the Rose hexapole corrector implemented to such a system are critically considered in this paper. The feasibility of miniaturized corrector suitable for desktop LVEM is especially discussed, including the aspect of corrector contribution to chromatic aberration that appears to be crucial. Optimal corrector parameters and resolution limits of such a system are proposed. •Improved spatial resolution•Spherical aberration correction•Permanent magnet transfer lenses.
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