I know I saw what I need somewhere, but I can't remember the document. I need the causes for PCB warp and twist. Judy Rae Brown Quality Assurance Manager EXPRESS MANUFACTURING, INC. Electronic Manufacturing Services 3519 West Warner Avenue Santa Ana, CA 92704 714.979.2228 - Tel 714.556.0575 - Fax Email: [log in to unmask] Website: <http://www.eminc.com/> --------------------------------------------------- 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 -----------------------------------------------------