Shutdown alphastep SNF 2010-01-27 10:30:08: Out for repair

[uli at snf.stanford.edu]

The Alphastep is back but not as good as it used to be. The 9511A VLSI calibration standard measures 9535A, but the 1200A step aluminum on oxide is very noisy. Please use the Alphastep to measure 1um or higher steps.