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Subject: Re: [Homebrew_PCBs] Re: Making the simplest board

From: Dwayne Reid <dwayner@...>
Date: 2004-09-24

At 09:34 PM 9/23/2004, upand_at_them wrote:
>I just realized something...
>
>How can I solder a two-sided board if I'm using sockets for the
>IC's? Ugh!

In addition to the other advice already given, also consider the use of
machine pin IC sockets - Augat & Assman come to mind. Their design allows
easy soldering of top side connections.

I will often add a short stub 0.062" wide to the outside edge of all
top-side IC pin connections - these serve as a marker to ensure that I
don't miss a top-side connection on a socket as well as providing just a
little more surface area for easier soldering. That width of 0.062" is the
width of the IC pads.

One of my techs had another trick that is often useful - he would go into
the plot files for the board in question and manually delete any top-side
pads that had no connection. I'm not quite sure how he determined just
what to delete (it's just a file full of numbers) but however he did it, it
was remarkably effective in ensuring that all top-side connections were made.

dwayne

--
Dwayne Reid <dwayner@...>
Trinity Electronics Systems Ltd Edmonton, AB, CANADA
(780) 489-3199 voice (780) 487-6397 fax

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