[TriEmbed] soldering oxidized pins - QFN part

[Mauricio Tavares]

On Wed, Jan 27, 2016 at 11:21 AM, Jeffrey Crews via TriEmbed
<triembed at triembed.org> wrote:
> It might be worth it for someone at Tri or Splat to score some "crocus
> cloth." It's like ultra-fine emery (actually red rouge-impregnated stiff
> cloth) usually used for polishing fine/soft metals like gold.
>
> I used to have some and it was awesome because it didn't damage anything or
> remove gold or other platings.
>
> Come to think of it, I'll get some.
>
> JSC
>
> On Wed, Jan 27, 2016 at 11:12 AM, Carl Nobile via TriEmbed
> <triembed at triembed.org> wrote:
>>
>> If you have some really fine non-metallized sandpaper you could give the
>> part a few twists on the paper first.
>>
>> ~Carl
>>
>>
>> On Wed, Jan 27, 2016 at 10:57 AM, Alex Davis via TriEmbed
>> <triembed at triembed.org> wrote:
>>>
>>> I have a QFN part which shows signs of oxidation on the pins, and I'm
>>> wondering if there's anything I can or should do to clean it up.
>>> Unfortunately, it's an old-stock part, so I can't just get a new one.
>>>
>>> I have some photos here of the part:
>>>
>>> https://hackaday.io/project/9150-68040-upgrade-for-powerbook-520c/log/30827-68040-has-arrived
>>>
>>> I am hoping there's enough un-oxidized metal on each leg that the solder
>>> and flux will wet the legs properly. I'll be point soldering a few pins
>>> on each side before drag soldering the rest, so I should be able to
>>> evaluate if it's going to work before committing to soldering the whole
>>> thing.
>>>
>>> Alex
>>>
>>>
>>> --
>>> "The theater of noise is proof of our potential."
>>> |\ |  (¯  \/ |¯\  |V| |\ ¯|¯ |¯) | \/ | | | |¯\ (¯   /¯  /\ |V|
>>> |-||_ (_  /\ |_/ @| | |-| |  | \ | /\ |^| | |_/ (_ . \_  \/ | |
>>>
>>> You won't find me on Facebook.
>>>
>>> _______________________________________________
>>> Triangle, NC Embedded Computing mailing list
>>> TriEmbed at triembed.org
>>> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
>>> TriEmbed web site: http://TriEmbed.org
>>
>>
>>
>>
>> --
>>
>> -------------------------------------------------------------------------------
>> Carl J. Nobile (Software Engineer)
>> carl.nobile at gmail.com
>>
>> -------------------------------------------------------------------------------
>>
>> _______________________________________________
>> Triangle, NC Embedded Computing mailing list
>> TriEmbed at triembed.org
>> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
>> TriEmbed web site: http://TriEmbed.org
>>
>
>
> _______________________________________________
> Triangle, NC Embedded Computing mailing list
> TriEmbed at triembed.org
> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: http://TriEmbed.org
>
      How about the eraser on a #2 pencil?