Final Finish Specifications Review
Specifications are consensus documents agreed upon by a panel of industry participants composed of suppliers, manufacturers, assembly houses and users.
Analysis Lab
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Authored By:
George Milad
Uyemura International Corporation
Southington, CT USA
Summary
Specifications are consensus documents that are agreed upon by a panel of interested industry participants composed of suppliers, manufacturers, assembly houses and end users. The IPC Plating Sub-committee 4-14, is no exception. If there is consensus then the committee documents it in a specification. In cases where no consensus is readily arrived at, the committee undergoes its own testing in what is commonly referred to as a "Round Robin" (RR) study.
Conclusions
It is noteworthy that the committee had spent considerable time working an organic solderability preservative (OSP) specification that was designated IPC-4555. After more than one year of struggling with the specification nothing was issued. There was no consensus arrived at. Mostly this was due to the wide assortment of organic products that were used for solderability preservation for the various application; each with its own thickness recommended values.
Initially Published in the IPC Proceedings
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