Hi Colleen. Your wave profiles, warpage, and handling concerns are partially dependent on the design. Many .093" boards may use the same or similar profiles. But, ultimately, the profile depends on the thermal mass of the board and components. My concerns with a board this large would be as follows: 1. Make sure your conveyors can open up wide enough to handle the board on all machines. 2. If you need a wave fixture, again, make sure the conveyor opens wide enough to handle it. 3. Make sure all machine tables are large enough to handle this size board. 4. You may need a special "work holder" if you have thru-hole parts going on with Universal Equipment. 5. If the board is heavy you may need special assembly fixtures or holders. 6. If there are SMT comps on the bottom, avoid gluing them if possible (or use a glue/paste process.) -Carrie -----Original Message----- From: Colleen Coccia [mailto:[log in to unmask]] Sent: Tuesday, January 14, 2003 4:05 PM To: [log in to unmask] Subject: [TN] PWA's of substantial size Good afternoon. Does anyone have either current or past experiences manufacturing PWA's of approximately 15.5" x 23.7" with a board thickness of .093" (double-sided)? This may include meeting IPC-A-610 solder requirements, acceptable wave profiles, excessive warpage or handling issues which may contribute to higher costs (outside of the norm) for producing an assembly of this size. Any and all feedback would be gratefully appreciated! Colleen Coccia NPI Quality Engineer McDATA Corporation [log in to unmask] office: 720-558-3964 SPECIAL NOTICE All information transmitted hereby is intended only for the use of the addressee(s) named above and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution of confidential and privileged information is prohibited. If the reader of this message is not the intended recipient(s) or the employee or agent responsible for delivering the message to the intended recipient(s). You may not distribute or copy the confidential and privileged portion of this communication to another. Anyone who receives confidential and privileged information in error should notify us immediately by telephone and mail the original message to us at the above address and destroy all copies. To the extent any portion of this communication contains public information, no such restrictions apply to that information. (gate01) --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------