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December 1999

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Subject:
Cupric Chloride Etchant
From:
Mike Bailey <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 8 Dec 1999 11:21:01 -0800
Content-Type:
text/plain
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text/plain (19 lines) 
Can anyone provide information on acceptable levels of fluoride impurities.
Additionally, do you know if there is a difference of allowable limits
between semiconductor and reagent grade.  I'm told there is no requirement
for fluride testing of either grade based on an ACS specification.

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