We just had such a case with 122 boards. The problem was the damage was
severe enough that the 3.3 volt plane 6 mils down was exposed. This
exposure of the 3.3 volt plane to the ground tie on the pin passed
electrical test but I guarantee that once the board was soldered we would
have a dead short from 3.3 to ground. We rejected the 122 damaged boards.

-Al

-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]] On Behalf Of
[log in to unmask]
Sent: Thursday, June 30, 2005 9:25 AM
To: [log in to unmask]
Subject: [TN] Via holes damaged

Group,

I have a question on via holes damaged by test probes.  We have a
situation where some of the annular ring of the vias used for test
points are being damaged.  I have looked in the IPC-A-610 Rev. D and
also IPC-A-600 Rev. G, but am not finding what I need or am not looking
in the right place.  If anyone knows of the requirements of what is
acceptable or a defect for this type of condition, please let me know.

Thanks.

Mary Jane

Mary Jane Chism
Technical Trainer/ Learning Center
Kimball Electronics Group
email: [log in to unmask] <mailto:[log in to unmask]>
Phone: 812-634-4462
Fax:     812-634-4501


---------------------------------------------------
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
-----------------------------------------------------