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| From [log in to unmask] Thu Aug 8 12: |
54:20 1996 |
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Hi
I am looking for pre clean information on drum side treated foil. It has been recommended to preclean prior to resist lamination, with a 16 to 20% sulfuric acid followed by nothing but water rinsing. Is this acceptable to remove the cromate coating and will it etch acceptable through alkaline etch?
Does anyone recommend a better one step preclean for this materail?
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