Problem wafersaw SNF 2012-11-28 23:58:50: Weird offset problem

eperalta at snf.stanford.edu eperalta at snf.stanford.edu
Fri Jan 11 13:16:26 PST 2013


The tool is doing that thing again where it shifts about 6mm from the desired position.
i.e. You go do height calibration, point microscope to the center (0,0 position) and after hitting enter it moves the head towards positive Y values all the way to the end of the chuck and tries to do the height calibration there.
This has happened before and I think it's an easy fix but sadly i forget how it was fixed... could this be added to a "troubleshooting" section in the standard operating procedure? 



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