It almost looks like some sort of background plating associated with some
chemistry entrapped in the vias.
James Hofer
Director of Operations
Accurate Circuit Engineering
3019 S. Kilson Dr.
Santa Ana Ca. 92707-4202
714-546-2162 work
714-473-6127 cell
[log in to unmask]
----- Original Message -----
From: "Ken Patel" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, November 02, 2004 12:14 PM
Subject: [TN] Contamination on the fabs....
> Fab & Assembly Experts,
>
> I am seeing some kind of contamination to bare boards. I have put pictures
> at Steve web site for everyone's review and here is the link.
>
>
>
> http://www.stevezeva.homestead.com <http://www.stevezeva.homestead.com/>
>
>
>
> Does anyone have seen similar kind of contamination? Is it some kind of
> corrosion? It looks outside of board to me but not sure as I have seen the
> boards personally yet. Boards are processed Electroless Nickel Immersion
> Gold.
>
>
>
> Any help will be highly appreciated.
>
>
>
> Re,
>
> Ken Patel
>
>
>
>
> ---------------------------------------------------
> Technet Mail List provided as a 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/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 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------
