The true benefit of implementing this breakthrough technology will be realized by greatly reducing the DPMO rates after wave soldering, as these are typically the highest and will be even higher in a lead-free environment. Mainstream in-process quality rates that are historically in the range of 2,000-3,500 DPMO after wave soldering can now be reduced to below 500 DPMO, or to that small number of defects such as missing or skewed components or insufficient destination side vertical hole fill unable to be repaired by this method. Approximately 75% of the defects after wave soldering are repairable defects such as solder bridges, excess solder or bulbous joint, insufficient solder, and solder splash. It is this significant reduction in DPMO rates that can now be realized by integrating an in-line, automated and traceable TH inspection and repair concept into the production process.
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