[time-nuts] PCB design questions thread II

[Prologix]

Another option is to cook the boards in a skillet.
http://www.sparkfun.com/commerce/present.php?p=Reflow%20Skillet

While John may be brave enough to hand solder BGA I am not :-)
Shorts can be easily detected with x-ray, but opens can be quite difficult
to spot. 

If you do endup hand soldering BGA, this is a good tool to check shorts and
opens. That is, if the part is JTAG enabled.
http://www.macraigor.com/jscan.htm



-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of John Miles
Sent: Monday, June 02, 2008 7:27 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] PCB design questions thread II


> Quoth Bruce Griffiths at 2008-06-03 09:50...
>
> > How do you cope with SMT parts (eg high frequency ADCs) with metal
> > thermal transfer /ground connections under the package itself?
>
> Haven't done it myself, but interested to hear others experiences.  I'm
> guessing that this would be a job for solder paste and a toaster oven -
> or high-tech equivalent.

Yes, see the link I posted.  Solder paste + heat gun does the trick, or you
can just carve out a hole for your soldering iron tip with a Dremel tool.

Even BGAs are commonly soldered at home with toaster ovens.

-- john, KE5FX



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