Hi Scott
As far as I know the 0.0035" minimum dielectric spacing is lateral as well as
vertical.
So a minimum of 0.0035" would be used to determine compliance to IPC design
criteria.

Now if you customer has determinded they can live with less, it should be on
the
drawing and that would be used to determine compliance.

Susan Mansilla
Technical Director
Robisan Lab

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8d
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe:   SUBSCRIBE TECHNET <your full name>
To unsubscribe:   SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################