Removing Silkscreens from IC's
Removing Silkscreens from IC's
(OP)
Was wondering if anyone knew a good solvent to remove the silkscreen on top of IC's. I have a product with 7 small PC boards but need to remove the Identifiers from certain IC's (SOIC, TQFP and a couple of LCC's) to deter certain types of individuals....
Obviously, would be nice if the solvent didnt dissolve away the IC , soldermask and the board.
MG
Obviously, would be nice if the solvent didnt dissolve away the IC , soldermask and the board.
MG





RE: Removing Silkscreens from IC's
RE: Removing Silkscreens from IC's
RE: Removing Silkscreens from IC's
RE: Removing Silkscreens from IC's
RE: Removing Silkscreens from IC's
Careful use of a Dremel drill with a polishing disk works too.
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If we learn from our mistakes,
I'm getting a great education!
RE: Removing Silkscreens from IC's
RE: Removing Silkscreens from IC's
I remember reading that a company copied the PC board of
an all digital instrument, ordered parts for a few thousand
and built and started to test them hoping that a large percentage will function -- but none of them worked...
A few weeks of investigation disclosed that an IC marked as
a standard TTL counter was a custom IC. This was the end of the project -- and of the company...
<nbucska@pcperipherals DOT com> subj: eng-tips
RE: Removing Silkscreens from IC's
Years later I tried to reproduce the experiment with a different batch of 'silver' ICs, but the silver paint had been improved.
RE: Removing Silkscreens from IC's
TTFN
RE: Removing Silkscreens from IC's
RE: Removing Silkscreens from IC's
I saw competitors doing the same thing.
RE: Removing Silkscreens from IC's
My only concern with using a steel brush would be bits of wire breaking off and shorting a circuit. I use the Dremel, but opt for a sanding disc, or even the electric erasor I mentioned above.