Subject: | |
From: | |
Reply To: | |
Date: | Fri, 14 Jul 2000 10:50:14 -0400 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Hi all,
In the section concerning conformal coating in IPC-A-610,
it is said that no bubbles should bridge lands or pins. Now
we do conformal coating on some boards with surface mount IC,
some are 751A-02 casing, some others in fine pitch casing etc.
It seems like sometimes, the coating will make some kind of thin
film between two pins of the ICs, causing air to be trapped under
those pins. I was wondering if this could be a cause of
rejection. Other than that problem, the coating is smooth and
free of bubbles.
Thank You in advance.
JF
##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe: SUBSCRIBE TECHNET <your full name>
To unsubscribe: SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################
|
|
|