*       FR-4 is "the" expression used by NEMA (National Electrical
Manufacturers Assiociation, USA) in their standard LI-1.
*       NEMA LI-1 and MIL-P-13949 (now replaced by IPC-4101) are similar
(but not exactely identical)
*       FR-4 conforming NEMA LI-1 equals to GF conforming MIL-P-13949
*       "FR" means also flame retardant.

Do you are working on ADATS?

Bernhard Wanner



        ----------
        Von:  Ducas Patrick[SMTP:[log in to unmask]]
        Gesendet: Donnerstag, 8. Juli 1999 16:13
        An:  [log in to unmask]
        Betreff:   [TN] Material for PCB

        I'm not familiar with bare board material, I need to know what is
the
        designation of "NEMA" in NEMA FR-4 material. This was taken out from
a
        customer specification.

        Thanks!


        Patrick Ducas
        Production Engineer
        (450) 358-2000 ext 2400
        [log in to unmask]