Smart Gui - Algorithm Training Material_rev1.pdf - 第71页
Copyright © ViT rox All Rights Reserved . B-type Algorithm - Joint (Base Reference) 71 Base Reference a. Joint Image Plane ● These are the types of 2D Lighting. Select the one with having highest contrast among intereste…
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B-type Algorithm - Joint (Terminal Reference)
70
4. Joint Coverage Thres
● To set the percentage to pass the joint inspection.
Pass Criteria for single pixel:
a. Measured Grayscale < Joint Grey Thres
b. Solder Height (%) > Joint Height Thres (%).
The overall pass criteria depends on:
Joint Coverage (%) > Joint Coverage Thres (%)
where,
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B-type Algorithm - Joint (Base Reference)
71
Base Reference
a. Joint Image Plane
● These are the types of 2D Lighting. Select the one with having highest
contrast among interested inspection region and the background.
● Usually choose angle 2+3
b. Joint Grey Thres
● Usually set to 160
c. Joint Height Thres
d. Joint Coverage Thres(%)
● To set the percentage to pass the joint inspection.
Pass Criteria for single pixel:
a. Measured Grayscale < Joint Grey Thres
b. Solder Height (um) > Joint Height Thres (um).
The overall pass criteria depends on:
Joint Coverage (%) > Joint Coverage Thres (%)
where,
Grey Thres
Measured Grey Thres
PASS
FAIL
Height Thres (um)
Measured Height(um)
PASS
FAIL
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B-type Algorithm - Joint (Solder Profile Inspection)
1. Solder Profile Inspection consists of 2 main function as below:
• Fillet Solder: To inspect insufficient solder
• Solder Profile: To detect cold solder
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Cold Solder