CLEANING TEST RESULTS

1. Solder Joint Defect
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Above reflow area shows defect by dust attached before past printing.
(red squared area shows places where it's burned)
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Sample photo shows mounting defects by some dust. Not sure when dust stick on PWB before or after screen-printing.
2. Test (PWB Input Numbers)
Lot #1
With Cleaning System 100 sheets
Without Cleaning System 155 sheets
Total 305 sheets
   
Lot #2  
With Cleaning System 337 sheets
Without Cleaning System 350 sheets
Total 687 sheets
3. Defect Detection
With Cleaning System Lot #1
Auto Inspection 0 points
Visual Inspection 2 points
Without Cleaning System Lot #1
Visual Inspection 2 points
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With Cleaning System Lot #2
Visual Inspection 0 points
Without Cleaning System Lot #2
Visual Inspection 8 points