[Gta04-owner] GTA04 production

[Sven Dyroff]

Hello Nikolaus,

> * reduce warpage by different temperature profile and atmosphere
> (here we have a special contradicting requirement in our design:
> because the board is so small and the UMTS module has so much
> shield the heat must be more than usual or the UMTS module is
> not soldered properly. But this increases warpage of the CPU.)

perhaps a stupid question:

What about soldering the UMTS module first with much heat and then solder 
the rest with common heat?

Best regards
   Sven
 

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