kicad-developers team mailing list archive

[Lorenzo Marcantonio <l.marcantonio@xxxxxxxxxxxx>]

On Thu, Jun 05, 2014 at 04:05:08PM -0400, Jean-Paul Louis wrote:
> 	Pin escapes on large BGA are always a challenge as the annular ring take a lot of the real estate. Same thing with decoupling caps on those BGAs. There is not much room to place the caps real close to the point where it is really needed.

The dreaded 'dog bones' fanout... IIRC there are guides stating
*exactly* the pattern it should have to maximize available track
space... could be a prime candidate for a script.

Luckily I eschewed actual BGA layouts for now (since they have a bad
reliability reputation in our environment, if you don't do underfill).
Also AFAIK you need the somewhat expensive 0.1mm process to do that
correctly. But I'm digressing.


-- 
Lorenzo Marcantonio
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