Smart Gui - Algorithm Training Material_rev1.pdf - 第72页
Copyright © ViT rox All Rights Reserved . B-type Algorithm - Joint (Solder Profile Inspection) 1. Solder Profile Inspection consists of 2 main function as below: • Fillet Solder : T o inspect insufficient solder • Solder…
Copyright © ViTrox 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 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
Copyright © ViTrox All Rights Reserved.
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
72
Cold Solder
Copyright © ViTrox All Rights Reserved.
B-type Algorithm - Joint (Solder Profile Inspection)
73
1. Joint Logic control
● OR Logic: Either 2D or 3D pass will consider as pass.
● AND Logic: 2D and 3D must be passed to consider as pass.
2. Fillet Gradient Thres
● To enable Fillet Gradient Inspection.
● Unit in degree.
Bumpy Detection
Slope Detection
Length Detection
3. Fillet 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