Cleaning leaked electrolytic & corrosion on PCB
in [Design]
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From: James Sweet on 10 Apr 2010 22:19 David Eather wrote: > On 11/04/2010 5:43 AM, John Larkin wrote: >> On Sat, 10 Apr 2010 11:15:57 -0700, DaveC<invalid(a)invalid.net> wrote: >> >>> 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. >> >> Dishwasher. >> >> John >> > > 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.
From: TralfamadoranJetPilot on 10 Apr 2010 22:59 On Sat, 10 Apr 2010 19:19:20 -0700, James Sweet <jamesrsweet(a)gmail.com> wrote: >David Eather wrote: >> On 11/04/2010 5:43 AM, John Larkin wrote: >>> On Sat, 10 Apr 2010 11:15:57 -0700, DaveC<invalid(a)invalid.net> wrote: >>> >>>> 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. >>> >>> Dishwasher. >>> >>> John >>> >> >> 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. Just be sure to do a 60 C bake for about a half hour afterward.
From: Robert Latest on 11 Apr 2010 07:29 ["Followup-To:" header set to sci.electronics.design.] John Larkin wrote: > On Sat, 10 Apr 2010 11:15:57 -0700, DaveC <invalid(a)invalid.net> wrote: > >>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. > > 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
From: ian field on 11 Apr 2010 10:24 "James Sweet" <jamesrsweet(a)gmail.com> wrote in message news:hprbio$hj4$2(a)news.eternal-september.org... > David Eather wrote: >> On 11/04/2010 5:43 AM, John Larkin wrote: >>> On Sat, 10 Apr 2010 11:15:57 -0700, DaveC<invalid(a)invalid.net> wrote: >>> >>>> 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. >>> >>> Dishwasher. >>> >>> John >>> >> >> 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. It was a different story the one time I put a pan of trichloroethane on the gas ring!
From: Nico Coesel on 11 Apr 2010 06:16
DaveC <invalid(a)invalid.net> wrote: >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. -- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... nico(a)nctdevpuntnl (punt=.) -------------------------------------------------------------- |