Problem evalign SNF 2009-09-02 12:49:16: mask vacuum failed

mtang at snf.stanford.edu mtang at snf.stanford.edu
Wed Sep 2 12:52:01 PDT 2009


With help from Gary, removed the mask holder and found some gooey stuff on the underside (cleaned off with acetone) and one of the orings under the mask holder had gone missing.  Gary & Mario found a new oring and mask vacuum works fine now.  Will check with previous user.




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