how to find defects in smt electronics manufacturing

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LED, BGA, and QFN Assembly and Inspection

Defect Inspection Examples

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Where Are Defects Introduced?

Counterfeit*Components

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Defects associated with paste applicationExcess solderSolder bridgesInsufficient solder

Solder Paste Application Defects

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Component Placement Defects

Defects associated with component placementMisalignmentPolarityMissing component

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Reflow Oven Defects

Defects associated with the reflow profileVoidingBridgingSolder ballsExcess solderInsufficient solder

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Statistical Process Control

Manufacturing process quality assurance.Solder joint measurement data, collected during x-ray test, can be statistically analyzed to identify manufacturing drifts, trends and other relevant process quality issues.

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BGA Head In Pillow Visual Inspection

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