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Date: | Tue, 19 Jun 2007 17:34:15 EDT |
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Thanks Richard.
I like your analogy, though when you mentioned it my thoughts ran to carp
the boniest fish I have ever encountered.
The fishbone diagram reference was not from me but from Ingemar Hernefjord.
It is impressive.
Best,
Joe
In a message dated 6/19/2007 2:22:57 PM Pacific Daylight Time,
[log in to unmask] writes:
Hi, Joe
I don't believe I have ever seen the fishbone charts that you describe,
but I do know that Electrovert has a similar chart for determining the
root cause(s) of wave soldering defects.
And the IPC-HDBK-001 has Tables that used to be wishbone charts for
individual processes, such as Table 7-4 (Common printing problems),
Table 7-9 (VPS problems/solutions), etc, that could become individual
branches on the fish.
I think a lot of us are just waiting for the same answer as you; we
would all love to see a wishbone chart by which we can trace back the
possible cause for a given assembly or solder defect.
But this particular wishbone chart, if it even exists, would have more
individual bones than a Minnesota Northern Pike.
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