12 Jul
2012
12 Jul
'12
1:03 a.m.
Hi Mathias,
On Wed, Jul 11, 2012 at 10:00:10PM +0200, Mathias K. wrote:
Your plan to use a 1.00mm thickness instead of the
default 1.55mm
increase the price by around 50% on, as example, WEdirekt. Why you
need this thickness? Most time this is really useless and only
increase the board costs. You should also think about bending, bga
and small thickness.
I want to use a known 6 layer PCB stacking of materials / thickness that
we know works with the Calypso/Iota/Rita. Particularly on the RF side,
I don't want to spend time re-calculating all the impedance matched /
controlled parts. That's the part that is hard to measure if we get it
wrong. So just do the safe thing and stay with the "known working"
case.
Regards,
Harald
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
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