NEWS 28 April 2022

Nanometer precision in practice

In 2020, Nobby Assmann won a Zeiss #measuringhero Award for the smallest measured object on a coordinate measuring machine: 0.4 mm x 0.4 mm x 0.03 mm.


The next year, he won another award, this time for the smoothest surface, with a surface roughness of Ra 540 pm and Rz 3.1 nm. The surface was finished by lapping, flat polishing and chemical mechanical planarisation; three extremely precise processes. This Mikroniek article descibes what exactly are these processes and what is it that drives this technician. (Image courtesy of Assmann Verspaningstechniek)


References

Fourfold ECP2 Bronze

This summer, four people were awarded a Bronze certificate from ECP2, a European certified precision engineering course programme that is a collaboration between euspen and DSPE.

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Measuring (the refractive index of)…

Measuring nanoparticles becomes increasingly important in healthcare, pharmacology, and environmental sciences, but measuring and obtaining relevant information from single nanoparticles requires cutting-edge technology.

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Minimising spherical aberrations

Temperature-controlled optical profilometry has historically been a difficult procedure due to imaging issues caused by spherical aberrations.

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