What is the equivalent spec. for flex circuits that IPC-RB-276 is for rigid printed boards? Also, what other IPC specs should be called out on the fab drawing? Thanks in advance: -------------------------------------- Larry L. Pucket Sandia National Labs. Dept. 2784 MS/0624 P.O. Box 5800 Albuquerque, NM 87185-0624 Email: [log in to unmask] Phone: (505) 844-1711 Fax: (505) 844-7428