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www.creativeelectron.com
LED, BGA, and QFN
Assembly and Inspection
Defect Inspection Examples
Copyright © 2014 Creative Electron
NOT FOR DISTRIBUTION
www.creativeelectron.com
Where Are Defects Introduced?
Counterfeit*
Components
www.creativeelectron.com
Defects associated with paste application
Excess solder
Solder bridges
Insufficient solder
Solder Paste Application Defects
www.creativeelectron.com
Component Placement Defects
Defects associated with component placement
Misalignment
Polarity
Missing component
www.creativeelectron.com
Reflow Oven Defects
Defects associated with the reflow profile
Voiding
Bridging
Solder balls
Excess solder
Insufficient solder
www.creativeelectron.com
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.
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
BGA Head In Pillow Visual Inspection
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
www.creativeelectron.com
Thanks for your time!

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How to find defects in SMT electronics manufacturing