[wbgaas-hpl] Au etchant issue

Uli Thumser uthumser at stanford.edu
Thu Mar 7 17:21:15 PST 2013

Hi All Au etchant users:

  Please pour the used Au etchant into the Au- waste container, don't 
pour it back into the fresh Au etchant bottle.
A labmember used the Au-etch, and it looks like the Au etchant has been 
contaminated with resist.
Try to minimize the amount of chemical you are going to use. Please 
contact me if you need to use a larger amount, we could set up a used Au 
etchant bottle for you.


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