SPM calibration specimens -150-1D

Accurate measurements of sub 0.5 micron features are increasingly important as nanotechnology develops and as conventional microfabricated structures (semiconductors, magnetic data storage devices, optical data discs) shrinking. The model 150-1D with a nominal period (pitch) of 150nm, one dimensional, fabricated on a transparent substrate (Aluminum lines on glass) is the new tool to support this work.