David,
It really depends on how much signal degradation you can handle.
In most cases you would be ok but if it is a 6G data line with very low
tolerance then
you may have issues.
To answer your original question though, I disagree that since you are
coupled to one plane that the
integrity of the other plane does not matter. In reality, you are somewhat
coupled to both planes so it does matter.
Regards
Ken
 
_____________________________________
 Kenneth J. Wood
President
Saturn PCB Design, Inc.              *  <mailto:[log in to unmask]>
[log in to unmask]
2737 Bishop Lane                       * (407) 340-2668
Deltona, Fl 32725                       fax: (386) 789-2765
www.saturnpcb.com
PCB_Design_new 
 
 
 
 
 
 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David Baldwin
Sent: Monday, November 24, 2008 9:36 AM
To: [log in to unmask]
Subject: [TN] Stripline Traces and Plane Splits
 
Fellow Designers:
 
I am designing a board with differential pairing in a stripline 
configuration.  One the bottom side is a solid ground plane.  On the 
top side is a split power plane.
 
I was told that running traces across the splits is not a significant 
problem as there is a solid ground plane on the other side for the 
return currents to flow.
 
Do you agree with this assessment and what has your personal 
experience told you.
 
Thanks in advance for your opinions and response.
 
David Baldwin CID+
 
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------