Carl Zeiss debuts SEM with enhanced resolution in the low kv region

(July 19, 2010) — Carl Zeiss introduced EVO HD, a conventional Scanning Electron Microscopy (C-SEM) system with higher resolution at low acceleration voltages. The EVO HD introduces High Definition to electron microscopy.

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Figure 1. Scale of butterfly wing (Pieris Brassicae) taken on the new EVO HD electron microscope at 5kV acceleration voltage. The combination of the groundbreaking high source brightness of the EVO HD and the enhanced low-kV sensitivity of the detector allows for more insight into such non-conductive biological nano-structures. Nano-textures associated with biological structures have attracted considerable attention not just in Zoology, but also in Material Science, bio-mimicry and nano-engineering. (Photo: Business Wire)

The technological basis for this achievement is the new EVO HD source, which features a higher source brightness. This brightness results in an improvement in resolution at low-kV relative to conventional tungsten SEMs. The improved source properties also aid analytical applications with a 30% increase in resolution at 30kV and 1nA.

“We are convinced that this is the most significant innovation in the market for conventional SEM in the last decade. Numerous applications in both life sciences and materials analysis will benefit from the increased performance,” explains Allister Mc Bride from Carl Zeiss Nano Technology Systems division at Cambridge.

The Carl Zeiss Group operates worldwide in the optical and opto-electronic industries. Carl Zeiss SMT AG comprises the Semiconductor Technology Group of the Carl Zeiss Group, manufacturing lithography optics and light, electron and ion-optical inspection, analysis and measuring systems. Further information is available at

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