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July 1999

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Subject:
From:
KELLY M SCHRIVER <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 16 Jul 1999 15:51:00 -0400
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text/plain (45 lines)
Dennis -

IPC-7721 is now the prevailing document.  Neither IPC-7721 nor IPC-R-700 give
absolute methods which are permissable or impermissible for repairs.  They are
both documents which display many methods, leaving it to the user to
ultimately determine which is applicable to his situation.

With regard to your repair:
Is it properly documented on whatever form of document you use to handle
unplanned events and nonconformances?

Was it performed by competent personnel using suitable materials?

and finally ..... the details of the workmanship ....

I'm assuming you have done this job with a round wire, and probably spot
bonded with an ashesive for stability - so try the following:

J-STD-001B table 9.3 provides termination criteria for round or flattened
leads - does your repair meet that, at a minimum termination length?  (also
see para. 6.4.2.2/.3)

If your used adhesive, then take a look at J-STD-001B para 6.1.6 and section
10.

My point is, it's often easier to "sell" a repair's acceptability by
demonstrating that it meets the elements of the basic assembly specification
than to try to get a customer to approve of a general spec like 700 or 7721.

Good luck - Kelly

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