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From: | simon.ipc.org!pbni.attmail.com!PBN!PBN1!JMcGee (John McGee) |
Date: | Mon, 13 May 1996 12:53:00 +0000 |
Content-Type: | Text/Plain |
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(This is a re-do of an inquiry sent Friday, in case it went nowhere. I've
received
no replies and we had a mail-server problem, so I thought I'd try again)
I've been tasked with justifying the enforcement of a long established
internal requirement, here at PBNI. For as long as I can recall, we have
been considering solder flagging (aka icicles, solder spikes) a rejectable
condition, even when a solitary occurrence of as little as 0.8 mm.
(We based this rejection upon workmanship standards that we adopted
from a sister organization with a much more Class 3 and military
orientation).
As we are manufacturing Class 2 products, and are re-evaluating the adopted
requirements, this 'reject' comes into question. I'm reviewing
ANSI/J-STD-001A
and IPC-A-610B this morning, I find no reference to this condition other
than
that shown in Figure 4-17 of the latter.
I certainly don't object to loosening up on our present standard if it is
not
justifiable, but I can't help the feeling that I'm missing something. Am I
?
An anticipatory ...Thanks !
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