Dear Colleagues: I am involved in the design of a critical medical product which requires the use of a multi-layer rigid flex board. This board (flex) has a 2 layer section, and a 4 layer section. The thickness tolerance is ultra critical, and the 2 layer section cannot exceed 0.004" max. I am looking for a high quality vendor that can reliably produce / reproduce a product with a 4 mil max thickness on a double sided flex. Thanks in advance for your recommendations. Dave. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 -----------------------------------------------------