From: Doug (email@example.com)
Date: Sat May 20 2000 - 12:38:15 PDT
Not sure how much of a bind you're in and I don't
know if your configuration allows it, but I've done
something like -
Combined layers 6 and 7 into layer 6 (layout of the
board allowed that). Turn 7 into a ground plane.
Turn 8 into a signal plane.
Huge BUT here ...
In doing this, care should be taken.
1. The two adjacent power planes should have simple
geometries - rectangle or square shape. No "arms"
in them (traces off the power plane for sourcing
or sinking power).
2. The power planes should be well separated.
If any of these get compromised, don't do it.
Should normally be avoided if possible. If there's
a simpler way, go with it.
Regards, Doug McKean
**** To unsubscribe from si-list or si-list-digest: send e-mail to
firstname.lastname@example.org. In the BODY of message put: UNSUBSCRIBE
si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu
This archive was generated by hypermail 2b29 : Wed Nov 22 2000 - 10:50:25 PST