Dear Techies, I would like to get an approximation of the cost of various laminates. To put everything on an 'even keel', I suppose they would all be approx 0.012"-0.015" thick (and std thickness ?? for the flexes), and single-sided. Does anyone have a cost/inē comparison table between the following substrate materials? And correct designations, where applicable? Have a good source of info on the subject?? 1 - Kapton/polyimide flex 2 - BT Epoxy (FR5?) 3 - 'Std' FR4 4 - Paper/epoxy (CEM1, 2?) 5 - Polyester Even a relative difference between the elements of the list would be instructive. Thanks Steve Creswick - Gentex Corporation --------------------------------------------------- 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 -----------------------------------------------------