KLA / Tencor - Alpha Step 500


Vintage: 2006
Wafer Surface Profiler
5-micron 60 degree angled radius tip   
cleanroom stylus based surface profiler
30 mg stylus force
Profile length max 10 mm
Maximum step height 2 mm
Vertical resolution sub angstrom
Horizontal resolution 100 angstrom
Max. sample thickness 21 mm