Problem wbnonmetal 2002-09-21 17:28:26: wafer dropped, drain doesn't work

hanjun at snf.stanford.edu hanjun at snf.stanford.edu
Sat Sep 21 05:28:27 PDT 2002


a half-cut wafer piece is dropped in the piranha bath, but I couldn't retrieve it because drain/aspiration was not working




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