Tin on Carbon resolution standards (STC range) are an industry standard for the calibration of Scanning Electron Microscopes (SEMs). They are particularly suited for resolution, astigmatism and image shift measurements over a range of magnifications. The relatively high atomic number of tin gives the spheres high contrast against the carbon substrate. Tin on Carbon standards are available in two sphere size ranges.
STC resolution standards can be mounted on any stub of your choice. Please contact us if you have special requirements not listed below.