Cleaning leaked electrolytic & corrosion on PCB

[DaveC]

What is the best method for cleaning up leaked electrolyte? This PCB has some
corrosion on IC leads and vias.

Is there a corrosion neutralizer that would be effective? Since the potential
for corrosion in places that aren't accessible (deep in the vias), a liquid
that can neutralize corrosion is called for.

Would something like DeOxit work in such an application?

This is on a Tek scope acquisition board.

Thanks.

 

[N_Cook]

What is the best method for cleaning up leaked electrolyte? This PCB has some
corrosion on IC leads and vias.

Is there a corrosion neutralizer that would be effective? Since the potential
for corrosion in places that aren't accessible (deep in the vias), a liquid
that can neutralize corrosion is called for.

Would something like DeOxit work in such an application?

This is on a Tek scope acquisition board.

Thanks.

litmus test first to see of acidic or alkaline and go for the opposite as
cleaner ?

 

[James Sweet]

What is the best method for cleaning up leaked electrolyte? This PCB has some
corrosion on IC leads and vias.

Is there a corrosion neutralizer that would be effective? Since the potential
for corrosion in places that aren't accessible (deep in the vias), a liquid
that can neutralize corrosion is called for.

Would something like DeOxit work in such an application?

This is on a Tek scope acquisition board.

Thanks.

I scrub with white vinegar and a toothbrush, then rinse with alcohol. If
the corrosion is more severe, mechanical methods may be needed,
Scotchbrite type cleaning pads work well but you have to be careful not
to damage fine traces. In some cases it's best to neutralize and then
clean off as much residue as possible and then leave the remaining
corrosion alone.

 

[James Sweet]

You must be single.

You can always do it while the wife is out, it's not gonna damage anything.

When I was a teenager I occasionally washed engine parts in the
dishwasher, not something I'd recommend, but my mom never found out.

 

[TralfamadoranJetPilot]

You can always do it while the wife is out, it's not gonna damage anything.

When I was a teenager I occasionally washed engine parts in the
dishwasher, not something I'd recommend, but my mom never found out.

Just be sure to do a 60 C bake for about a half hour afterward.

 

[Nico Coesel]

What is the best method for cleaning up leaked electrolyte? This PCB has some
corrosion on IC leads and vias.

Is there a corrosion neutralizer that would be effective? Since the potential
for corrosion in places that aren't accessible (deep in the vias), a liquid
that can neutralize corrosion is called for.

Would something like DeOxit work in such an application?

This is on a Tek scope acquisition board.

Hmm, you bought a TDS5xx? There is a lot about cleaning these board on
the Tektronix user forum on their website.

 

[Robert Latest]

["Followup-To:" header set to sci.electronics.design.]

Dishwasher.

Excellent advice. A household dishwasher (with the normal powder
detergent) is an extremely cheap and powerful cleaning device for almost
anything. It took me a while to convince my ex-lab to use one for
cleaning larger UHV parts rather than an appropriately-sized ultrasonic
tank which would have cost the equivalent of 100 dishwashers. There are
things that a dishwasher isn't good enough for, but they are few.

robert