I usually submit the one-up design, then ask the pwb vendor to optimize the panel layout to get the maximum number of panels out of one of their standard flat sizes. Then, I may change the panel layout to optimize the panel size, position, tooling hole location, fiducials, etc, for the production equipment, and I may also find better ways of scoring/routing to maintain the required rigidity and minimize the depaneling time required. But when I do this I try to stay within the panel dimensions proposed by the board vendor. Then I run these past the board vendor again. I also make sure no components will be overhanging a route or a score line, etc. It requires a lot of communication and interfacing with the board vendor, but it always pays off. DFM with FMEA in mind. The good PWB vendors usually are very accommodating in spending a little time planning the panel layout. They have a vested interest in making sure their customer's board designs are as competitive as possible. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Marsico, James Sent: Monday, February 19, 2007 1:08 PM To: [log in to unmask] Subject: [TN] PWB panels Hello TechNet... A quick question. When designing small PWBs, do you design the paneled array or do you supply a one-up design and ask your PWB supplier to design the panel for you? Jim Marsico EDO Corporation 1250 New Horizons Blvd. North Amityville, NY 11701 631-630-5079 [log in to unmask] --------------------------------------------------- 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 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- 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 847-615-7100 ext.2815 -----------------------------------------------------