> By 'corroding' you really mean 'etching' right? I didn't know that
> oxidized copper makes a difference in etching process. Is that what
> others observed? It may take a bit longer but does it really cause
> etching problems? Mike
Small oxidized points in the final board makes the etching (sorry!)
process longer. So while one or some small points of oxidized copper take
longer to etch, your entire board is suffering with more etching than
necessary. It leads you to broken tracks and void areas on fills.
The best way is to have the etching tank besides the water supply. Took
all the paper from the board? Dip it imediattely into the acid and let the
etching begin! As fast as it can be, with bubble agitation and heating of
the substance :o)
"A fast etching does a good board"
Greetz!
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