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


Defects associated with paste applicationExcess solderSolder bridgesInsufficient solder

Solder Paste Application Defects


Component Placement Defects

Defects associated with component placementMisalignmentPolarityMissing component


Reflow Oven Defects

Defects associated with the reflow profileVoidingBridgingSolder ballsExcess solderInsufficient solder


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.













BGA Head In Pillow Visual Inspection







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How to find defects in SMT electronics manufacturing

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