Smart Gui - Algorithm Training Material_rev1.pdf - 第31页
Copyright © ViT rox All Rights Reserved . 31 1. Solder Coverage 2D+3D (%) ● Using 2D (Grayscale) and 3D(Height) ● OR Relation between 2D and 3D as pass criteria for single pixel ● Pass Criteria for single pixel: a. Measu…
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1. Solder Coverage 2D+3D (um)
● Same as Solder Coverage 2D+3D (%)
● Except the height unit in um.
● The height thres will increased when lifted body happened.
● Below shows 2 examples with height Threshold: 80um at
different conditions:
a. Without Lifted body
b. With Lifted body
CR Type Algorithm - Joint [Solder Coverage 2D+3D (um)]
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,
Copyright © ViTrox All Rights Reserved.
31
1. Solder Coverage 2D+3D (%)
● Using 2D (Grayscale) and 3D(Height)
● OR Relation between 2D and 3D as pass criteria for single pixel
● 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,
CR Type Algorithm - Joint [Solder Coverage 2D+3D (%)]
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CR-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