3D Automated X-ray Inspection

3D Automated Inline X‐ray Inspection Solution
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Table bl of f Contents
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2D vs. 3D Methods in 3D – Laminography and Digital y y Tomosyntesys Advantages and Benefits in 3D inspection Criteria in identifying good AXI
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Image Comparison
2D Xray 3D Xray CT (Computer Tomography)
Top p‐ down view
Voids
Rotation in VVTS repair station
Angle view
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Image Comparison
2D Xray 3D Xray CT (Computer Tomography)
Top p‐ down view
Virtual Life Images (Z slicing of 2 mils apart) of POP component on top of a QFP
Angle view
Please click another PDF file to view the Virtual Life Image slices of the same POP component.
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What is 3D X‐ray Inspection?
Chef’s View Human View Computer View
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3D Automated X‐ray y Inspection p
What defines an AXI 3D Automated Inspection? p AXI 3D inspection is referring to the ability of the system to slice through different z‐height with clear separation of top and bottom component without any artifact. Automated inspection is referring to the system capability to inspect each joint with different algorithm and thresholds setting without involving human control and manual inspection. As such, ViTrox AXI is the only 3D Automated Inspection that is currently offer to the market that could fulfill the 2 criteria above well. We do not need to develop multiple programs to achieve good GR&R, Call rate, shorter h t cycle l time ti and d coverage! !
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Where is the defects?
Spot the difference Find the defects
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Where to find the defect?
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What is Automated Inspection?
Board Size: 16”x 14” Joint Count: 27,000 BGA Components: C t 12
How long do you think it take for manual inspection and how good is the outcome? V810 complete 100% inspection in 90 seconds
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What is Automated Inspection?
6 Algorithm: 20 Preset Joint Types Short Excess Misalignment g Open Insufficient Voiding More than 100 Threshold setting that comply to IPC Standard
All threshold and setting will be inspect p in fully y AUTOMATED method 
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X-Ray Laminography (5DX)
The system generates an X‐ray scan by directing an electron beam along a circular path within the X‐ray tube. From the above the X‐ray target, the electron beam is synchronized y at 180 degree g following g the rotary y scintillator, positioned below the board being tested. A is in the image (focal) plane, while B is outside. Note that A always projects to the same location on the scintillator screen, while B projects to constantly changing location. As a rotation of the scintillator is completed, the B A image average out of the view view, leaving only A. The laminography image, referred to as a slice, (A) project onto the scintillator screen where it is converted to normal light g for the X‐ray y image g camera. Z‐axis motor and Z height mapping is required to correctly focus the object at the Plane of Focus.
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