TECHNET Archives

October 2000

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
"Stephen R. Gregory" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 6 Oct 2000 11:33:54 EDT
Content-Type:
text/plain
Parts/Attachments:
text/plain (30 lines)
Hi Ya'll!!

It's picture time again! Got some boards in at incoming inspection that are
really weird looking Go to:

http://www.driveway.com/share?sid=e25a88c4.8e904&name=Pictures

Look at Pits.jpg and Pits2.jpg...very, very strange! Never have seen
something like
this before...and it's only on the backside of the board? What could cause
this?

Looking in the IPC-A-600F, it only talks about reductions in conductor width
of more than 20% (for class-2), but doesn't talk about reductions in
thickness by pits such as these...it's hard to tell if they've gone all the
way through the trace because the pits are filled with solder mask and you
can't see all the way down to the bottom of the pits.

Common sense tells me that these boards are rejectable...am I right?

-Steve Gregory-

---------------------------------------------------------------------------------
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF TECHNET
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
---------------------------------------------------------------------------------

ATOM RSS1 RSS2