Re: gEDA-user: best ways to do SMT assembly

[Kai-Martin Knaak <kmk@xxxxxxxxxxxxxxx>]

On Fri, 15 Aug 2008 09:20:23 -0700, Dave N6NZ wrote:

> For TQFP's, apply a stripe of solder across all the pads, and tack
> solder just two pins on opposite corners.  After you are happy with the
> alignment you can solder the rest down.  Probably you will have bridges,
> which is easily handled with flux and solder wick.
> 
> Hand soldering SMT is tedious, but not difficult.

There is a demonstration on youtube (make sure to click the hires button):

http://www.youtube.com/watch?v=wQXhny3R7lk

and for the more advanced:
http://www.youtube.com/watch?v=4V7tBPsECjc

I can confirm, that this technique works even for lead free solder. The 
key is the correct tip: It is conical with a flat, side. This flat 
surface is essential. It will suck the solder not needed for the 
connection. 

---<(kaimartin)>---
-- 
Kai-Martin Knaak
http://lilalaser.de/blog



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