Rework vs. Repair

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Rework vs. Repair

Postby Molly O'Hara » Mon May 14, 2012 9:30 am

Question: "We often need to strip solder splash contamination off gold edge contacts and replate them. Is this considered a repair or a rework? Are there clear definitions for the terms repair and rework?" B. N. Answer from Sunstone Circuits: According to IPC-7711B/7721B Rework, Modification and Repair of Electronic Assemblies, the removal of solder from a gold contact finger constitutes a repair.
The definitions of the 2 classifications are as such:
Rework: The act of reprocessing non-complying articles, through the use of original or equivalent processing, in a manner that assures full compliance of the article with applicable drawings or specifications.

Repair: The act of restoring functional capability of defective article in a manner that does not assure compliance of the article with drawings or specifications.

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Re: Rework vs. Repair

Postby bwetman » Sun Aug 30, 2015 10:54 pm

According to IPC-7711B/7721B, Rework is the act of reprocessing noncomplying articles, through the utilization of original or equivalent processing, in a style that guarantees full compliance of the article with applicable drawings or specs. Whereas a Repair is the human action of restoring the functional capacity of a defective article in a way that does not assure compliance of the article with applicable drawings or specs. Now in answer to your first query, we would determine this process a Rework. We perform this rework on a steady base. We are capable to touch the gold fingers using an "equivalent processing" and we can measure the plating deposition thickness to "assures full compliance of the article with applicable drawings or specifications" as detailed in the IPC definition.
PCB Repair Tools- Rework Stencils, SMT Stencils & Solder Paste Stencil at Soldertools.net
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