Subject: | |
From: | |
Reply To: | (Leadfree Electronics Assembly Forum) |
Date: | Wed, 19 Mar 2008 14:38:31 -0700 |
Content-Type: | text/plain |
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If you have an issue that equipment should be in continuous use until the
process is optimized...............fire someone
Which country did you move to?
JOhn
John Burke
(408) 515 4992
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Pete Houwen
Sent: Wednesday, March 19, 2008 6:49 AM
To: [log in to unmask]
Subject: [LF] x-ray and SPI frequency?
I just got back from another trip to our (captive) PCB plant, and before I
vent
more frustrations, I need to ask if I'm off base.
As part of our switch to the more difficult lead free at the same time we
started BGAs and moved to a new facility in a new country, we purchased x-
ray and solder paste inspections systems. After asking about the gathering
dust on them, I was told the SPI was used on a 1 panel/hour sample for each
of 2 lines, the x-ray is used only on failed boards suspected of a BGA
problem.
I'm not a process engineer, don't even play one on the internet, but this
doesn't seem normal to me. We still aren't getting good yields, I think
these
tools should be more utilized. I don't want to press the issue without a
better
idea of normal use.
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Search previous postings 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
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