Subject: | |
From: | |
Reply To: | |
Date: | Thu, 15 Mar 2007 16:04:31 -0700 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Steve:
I would fix this scratch on cowercoat. Here you can find some information regarding "liquid Kapton".
This is from COATES, two components
1. XV601T-2-ORANGE 1/FLEX RES .67K; CAWN 1373
2. XV601T-2 CLEAR SCR 1/FLEX HARD .33K; CAWN 1372
----- Original Message ----
From: Steve Gregory <[log in to unmask]>
To: [log in to unmask]
Sent: Thursday, March 15, 2007 10:35:14 AM
Subject: [TN] Flex Circuit Scratch...
Morning All!
There were a few rigid flex assemblies brought to me this morning with
some scratches in the coverlay of the flex. They are pretty minor, but
they do go down into some traces a bit. I don't think the traces are
really signal traces, but are part shielding pattern on the outside of
the flex. Check-out:
http://stevezeva.homestead.com/files/Flex_Scratch.jpg
My question is; is this a defect that has to be repaired, and if so what
do I use to repair the scratches with? Normally I would use soldermask
on a rigid board if the scratches doesn't reduce the trace cross-section
beyond limits, but these traces aren't signal traces, and this isn't a
rigid board.
I think this happened during the de-masking operation after conformal
coating...
Thanks!
-Steve Gregory-
---------------------------------------------------
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
-----------------------------------------------------
---------------------------------------------------
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
-----------------------------------------------------
|
|
|