Steve:
You are correct. Thanks for your in depth elaboration on the subject matter.
Tom Highland


-----Original Message-----
From: Sauer, Steven T. [mailto:[log in to unmask]]
Sent: Thursday, October 18, 2001 07:48
To: [log in to unmask]
Subject: Re: [TN] Trimming Leads...


Thomas:
IPC-A-610 is an "acceptability standard" or "workmanship standard" not a
process requirements standard.  As you pointed out, rev B attempted to
require a soldering touch-up operation.  Rev C properly set the standard
straight by requiring the leads to be visually inspected at 10X and follows
with the words, "as an alternative to visual inspection, the solder
connections may be reflowed."  This all comes down to the process being
employed: "solder/cut/solder/inspect" or "solder/cut/inspect" by the
manufacturer, not by a workmanship standard trying to dictate process
requirements.  The objective of 610 is provide accept/reject criteria after
processing -- which has been accomplished quite well in Rev C and the
proposed Amendment 1.

Steve Sauer

-----Original Message-----
Subject: Re: [TN] Trimming Leads...


Cutting the leads to length PRIOR to soldering is the best practice.
However, per IPC-A-610B, Section 4.2.2, if you clip leads after soldering
you will need to perform a re-solder function on each lead or inspect each
clipped lead at 10X.

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