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Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together?

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dashley@gmail.com writes:

> We do embedded software, but the hardware is produced by our customer
> (we don't control it).
>
> Sometimes we need to attach a wire (for monitoring a serial or I2C
> interface, or for timing instrumentation) to a surface-mount IC where
> the pins are VERY close together.  The pins are so close together that
> I can't solder a wire to it, even using high-power optics and the
> finest soldering iron tip available.
>
> Are there any special tools, equipment, training, or techniques that
> might help with this?
>

I always manage to solder wires, e.g.

<https://ee.devereux.me.uk/ADS7947.jpg>

 :)

However if you are talking about actual pins like a QFP or MSOP then I
have found there are miniature test hooks that work pretty well, better
than I expected. They are usable with fairly small pitches. Certainly
fine with 0.5mm pitch QFPs for example.

There are many types but e.g.

<https://www.digikey.co.uk/product-detail/en/e-z-hook/X2015BLK/461-1000-ND/528221>


-- 

John Devereux

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Thread

How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? dashley@gmail.com - 2018-06-26 09:51 -0700
  Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? Rob Gaddi <rgaddi@highlandtechnology.invalid> - 2018-06-26 10:21 -0700
  Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? Chris <xxx.syseng.yyy@gfsys.co.uk> - 2018-06-26 22:40 +0100
    Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? Dave Nadler <drn@nadler.com> - 2018-06-27 18:31 -0700
      Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? Evgeny Filatov <evgeny.filatov@ieee.org> - 2018-06-28 13:10 +0300
  Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? John Speth <johnspeth@yahoo.com> - 2018-06-26 17:06 -0700
    Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? Theo <theom+news@chiark.greenend.org.uk> - 2018-06-28 00:40 +0100
      Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? John Speth <johnspeth@yahoo.com> - 2018-06-28 12:03 -0700
        Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2018-06-28 20:13 -0400
  Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? gnuarm.deletethisbit@gmail.com - 2018-06-26 19:29 -0700
  Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? Ed Prochak <edprochak@gmail.com> - 2018-06-27 09:53 -0700
  Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? John Devereux <john@devereux.me.uk> - 2018-06-27 20:28 +0100
  Re: How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together? 1 Lucky Texan <1luckytexan@gmail.com> - 2018-08-03 09:47 -0700

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