Earl, I too am very much interested in StackUp/LayUp specification. Could you please keep me in touch too. It appears to me that offshore MLB vendors don't provide the same level of documentation as state side vendors do. I often question the quality of material use, ie. glass cloth grade. Victor G. Hernandez Component/Material Failure Analysis Eng. PS4-1, Rm. 132 Ofc: 512-725-3471 Pgr: 512-907-0005 -----Original Message----- From: Earl Moon [mailto:[log in to unmask]] Sent: Wednesday, July 10, 2002 2:29 PM To: [log in to unmask] Subject: Re: [TN] Stackup specification, tolerance, power plane resonance? It's way past time to specify exactly what materials you require - as long as you know what they are. Working concurrently with your fabricator, you will do the right thing. I'm about to release my latest DFM/CE check lists. Indicated clearly therein are detailed requirements for MLB constructions. I'll provide some samples off line if you wish. Earl Moon ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 1.8d 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 ---------------------------------------------------------------------------------