Homebrew PCBs

----- Original Message ----- 
From: "DJ Delorie" <dj@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Tuesday, October 23, 2007 6:22 AM
Subject: Re: [Homebrew_PCBs] soldering question


> 
> DJ Delorie <dj@...> writes:
>> With PTV, put a bunch of small ones in that pad to pull heat to copper
>> on the other side of the board.
> 
> Alternative if you can't do reflow - put a BIG via under the pad; big
> enough for you to solder the pad from the other side, through the
> hole.  Only works with plated vias, though, and only if your iron can
> heat up that much metal at once without damaging the chip.

That's what I do. My Metcal doesn't have any problems delivering the heat.

Leon
--
Leon Heller
Amateur radio call-sign G1HSM
Yaesu FT-817ND and FT-857D transceivers
Suzuki SV1000S motorcycle
leon355@...
http://www.geocities.com/leon_heller