Exactly what is their concerns? I feel you've given your board house everything you can, since that is what I do as well. More often than not, it is the inexperience of the CAM operator, not your info. Don't fall for the trap of renaming your nets to one name for the IPC-356 netlist, since the whole point of error checking is lost. David Ricketts PCB Design Services -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Miswald, Ron Sent: Thursday, September 25, 2003 2:16 PM To: [log in to unmask] Subject: [TN] IPC-356 netlist question Our board house is raising a flag about our IPC-356 netlists. Their concern is that we short various grounds due to short comings in out layout software. As an example we have digital ground, 1.8V crystal ground, and 3.3V crystal ground segregated until they tie together (short) at the power supply. My question, are there easy work arounds for the board house? I do include a readme listing the ties, the nets they short, and their (x,y) locations. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 847-509-9700 ext.5315 -----------------------------------------------------