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Method #20 -Fail

A project log for Safe IC decapping while preserving bond wires

Decapping using hardware store available materials and relatively safe procedure

100dollarhacker100dollarhacker 04/25/2025 at 03:250 Comments

I've already tried to put 0.3 mm copper wire into nitric acid and it survived. Would 0.02mm wire (which mimic real bond wire) survive? Now the acid (hopefully) more concentrated although the wire much thinner. 

Got this

It's much thinner than my hair(!) and it's conducting so it's not enameled.

Well, run another experiment with it's ended up with thin copper wire dissolved in seconds

Not just copper got dissolved also the jar that holds the nitric acid. 

The red on ph indicator means that some acid got out. 

After some examining I found that gasket seal was dissolved from Nitric acid vapors.

Also my hands got some ... You can see orange spots. Luckily the acid is not to concentrated.

Yeah, nasty stuff... 

And yes I should use gloves, unfortunately not all gloves can be used. Nitrile gloves get dissolved even with this concentration (at least they didn't catch fire) also Latex gloves get dissolved. For now only Vinyl gloves holds let's hope it can withstand higher acid concentration.

No wonder nothing worked. Re-watched videos... I missed the point that it should be done in less than 200°c

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