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Harald Welte laforge at gnumonks.orgHi 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 at gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)