Homebrew PCBs

----- Original Message ----- 
From: "David Griffith" <dgriffi@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Wednesday, July 29, 2009 5:43 AM
Subject: [Homebrew_PCBs] Soldering QFNs


> 
> Does anyone here have any pointers on making a board with a QFN packaged 
> device and then hand soldering it?  I'm pondering doing something like 
> putting a lot of relatively large vias underneath to made a connection 
> with the thermal pad on the bottom.  At first I thought that I might get 
> away with using heat sink grease, but it looks like that thermal pad is 
> the only connection for Vss.

That's what I do. I use a single large via.

Leon