Mark,
Sorry, no answer here, just another question.  What sort of cure tests are
the TMA & DSC ?

Thanks,
Mark Hargreaves
EMDS

        -----Original Message-----
        From:   [log in to unmask] [SMTP:[log in to unmask]]
        Sent:   Wednesday, September 18, 2002 1:09 AM
        To:     [log in to unmask]
        Subject:        [TN] Poyimide cure

        Technetters:
        I'm looking for information on the best way to confirm cure on a
polyimide board.  The particular part is a sequential lamination structure.

        My questions include:
        1.  Is the best time to confirm cure of polyimide immediately after
final lamination?
        2.  Do the polymers created require a specific cure test, e.g. is
TMA best, DSC, or other method?

        Also, can overcure be a problem with Polyimide?

        And, does this material offer special challenges with respect to gel
time, resin flow, etc?

        I've already heard differences of opinions, and am looking forward
to more avenues of knowledge from Polyimide experienced folks.

        Mark Julstrom
        Multek

---------------------------------------------------------------------------------
Technet Mail List provided as a free 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/html/forum.htm for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------