Re: gEDA-user: dxf again

[Armin Faltl <armin.faltl@xxxxxx>]

First and foremost thanks a lot!

DJ Delorie wrote:
> > I somehow feared this while I wasn't sure: so it is not posible to 
> > manually define the paste mask on a footprint?
> >     
>
> No.  What I do is use a perl script to create a "paste board" that has
> all the paste apertures as element pads, but nothing else.  Then I can
> manually edit them all, and just dump a gerber for layer 1 copper as
> the paste gerber.
>
>   
> > I need this to create the footprint of a part with thermal central pad. 
> >     
>
> Use one pad for each paste spot you need, then one overall pad with
> the "nopaste" flag to fill in the gaps.
>   
If I understand you right, this is an alternative to the "paste board" 
approach above.
I'll go for this and provide the footprint when I'm ready.
> > Hand-soldering is a nightmare-option with 0.5mm pad-pitch ;-)
> >     
>
> No it's not, I do it all the time.  Even when I use a paste stencil
> and reflow, I often have to re-solder the pins for various reasons.
> Just use enough flux and a big tip and it works just fine.
>   
I've used the surface tension of the solder with relatively fine pitched 
square flat packs
and "legs" with success and actual ease. The beast I'm talking about now 
is this:

http://focus.ti.com/lit/ds/symlink/bq24103.pdf

It has the pins beneath the package. I'll extend the pads about 0.5mm 
outside (longer
with traces attached) as recommended, so will this trick work again?

Regards, Armin


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