88nm Step Standard with ZYGO Certification

Getting the ZYGO certification paperwork right in the box was a nice touch—it made setting up the calibration on my interferometer straightforward. The step standard itself feels solidly machined and the 88nm value is spot-on for our thin-film measurements.

The 88nm step standard arrived with the ZYGO certification clearly documented, and the measurement data on the paperwork matched the labeled value exactly. I've used it to verify my interferometer's scale, and it's reassuring to have a traceable reference right out of the box.

The certification paperwork is solid and exactly what I needed for our QC records, and the 88nm step height verified cleanly on our interferometer. It arrived in the standard configuration, ready to use straight out of the box.