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September 2010

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Subject:
From:
"Knapp, Wayne B" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Knapp, Wayne B
Date:
Mon, 20 Sep 2010 12:01:54 -0500
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I'm a new member and hope that this is the correct forum for questions.  My question is related to IPC J-STD-001E, Section 4.18.2, Solder Connection Defects.  In particular, I would like to know how Item "f." is to be interpreted (See reference below).  Is the intent of item "f."  to,


1)      allow a solder connection within the confines of the solder pads and connecting solder path as the design allows,
or

2)      does it allow solder "bridging" outside the solder boundaries (solder pads and connecting solder path) and solder is allowed to come in contact with the circuit board.

[cid:[log in to unmask]]

It appears that item "f." was not part of the standard in Revision B, but was added to the standard in Revision C.  With that said, I'm hopeful that someone in this forum can shed some light on the original intent of Item "f."

Thanks,
Wayne


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