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| Date: | Wed, 29 Aug 2007 11:33:17 +0300 |
| Content-Type: | text/plain |
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A lot depends on the solder mask material. If it is dry film, for
example, then it is possible, with an emulsion of methylene chloride in
a 20% sodium hydroxide solution (remove and rinse as soon as the coating
crinkles). If it is based on an epoxy (and many are) it is clearly
impossible for a solvent to differentiate between a cured mask and the
substrate and you would cause much more harm than good.
Brian
Tim Mack wrote:
> All,
>
>
>
> I have run into an issue with a board that has solder mask covering some
> pads. Is there a product/solvent that can remove the solder mask easily
> with out etching the copper? I would rather chemically remove it than
> manually scrap it off with a razor blade.
>
>
>
> Thanks in advance,
>
>
>
> Tim Mack
>
> Research Engineer
>
> NDSU CNSE
>
> www.ndsu.edu/cnse
>
>
>
>
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