Comment wbdiff SNF 2012-04-02 12:12:43: white crystals are everwhere near BOE 6:1 bath

popomoo at snf.stanford.edu popomoo at snf.stanford.edu
Mon Apr 2 12:12:44 PDT 2012


I was trying to change the HF 50:1 in this morning, and I found that many white stuff were left around the BOE 6:1 bath. The white stuff looks like the residue of HF, and they were everywhere outside the bath, such as the lid and even the ceiling of the wet bench.




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