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How are filled molds inspected? What kind of defects can be identified?

April 26, 2017defects filled inspected Molds

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How are filled molds inspected? What kind of defects can be identified?

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Molds are inspected using the Mold Inspect Tool. The MIT is an Automated Optical Inspection tool and part of a C4NP line configuration. Missing or partial fills, overfills and bridges can readily be mapped. If defect densities are above a certain rework limit, molds are emptied of solder and refilled. Mold suppliers will publish their capabilities for mold inspection and mold QA.