MV-9_Chapter 5. Teaching.pdf - 第172页
MV -9 Use r Manual 5- 172 - Contrast level Set contra st level to detect change of edge . In general, set it below 20. - Use sub light Check this op t i on for add itio nal inspect io n using su b light . In case o…
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5-171
[Figure 5-206 Lead inspection tap parameter]
[Figure 5-207 Example of lead inspection tap setting]
- Light type and inspection type (image type)
Set lead inspection light. In general, set it to horizontal + vertical light and R (Red)
and L (Luminance) can be selected.
- Binarization boundary value
Select auto or manual for binarization method. adjust binarization value for good
separation of lead during manual selection.
- Noise removal
Set stripe width and area value to remove noise between lead and lead.
If stripe width value is set high, lead area will narrow. Hence, set it below 2.
Area is to remove white area that exists between lead and lead. adjust the value
checking preview image.
- Search start position and search range
Set this in area for which lead inspection is desired to be conduct, and set area in
which lead width clearly appears.
Set search range not to go over lead tip.
MV-9 User Manual
5-172
- Contrast level
Set contrast level to detect change of edge. In general, set it below 20.
- Use sub light
Check this option for additional inspection using sub light.
In case of defect at default light, conduct inspection using sub light.
Set same parameter excluding light type and inspection type (image type) with that
of default light.
Different light type and inspection type is used that are used for default light. In
general, horizontal + vertical light is selected when default light is used, and vertical
light or user light is selected when sub light is used.
Pad inspection tap parameter (default light)
[Figure 5-208 Pad inspection tap parameter]
[Figure 5-209 Example of teaching tap setting]
- Light type and inspection type (image type)
Set lead inspection light. In general, horizontal + vertical light is selected.
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5-173
Generally, set B (Blue) for inspection type, and L (Luminance) can be selected.
select color that is different from PCB for pad inspection image. In other words, blue
(B) is selected when PCB is green, and green (G) is selected when PCB is blue.
- Binarization boundary value
Select auto or manual for binarization method. If „manual‟ is selected, adjust
binarization value for good separation of lead.
- Noise removal
Set stripe width and area value to remove noise between lead and lead.
If stripe width value is set high, lead area will narrow. Hence, set it below 2.
Area is to remove white area that exists between lead and lead. adjust the value
checking preview image.
- Search start position and search range
Set this in area in which pad inspection is desired to be conducted, and set range in
which pad width clearly appears.
- Contrast level
Set contrast level to detect change of edge. In general, set it below 20.
- Use sub light
Check this option to conduct additional inspection using sub light.
In case of defect at default light, conduct inspection using sub light.
Set same parameter excluding light type and inspection type (image type) with that
of default light.
Use light type and inspection type different from light type that is use in default light.
In general, horizontal + vertical light is selected when default light is used, and
horizontal light or user light is selected when sub light is used.
Inspection option
- Calculate only end of side lead (lead shift)
This will be activated if lead shift ratio inspection is checked in normal criteria.
For lead shift ratio inspection, conduct inspection only for the first lead and the last
lead.
- Side lead comparison (lead tip)
This will be activated if lead tip offset inspection is checked in normal criteria.
Re-calculate lead tip position of each lead considering angle. make good/defect
judgment based on lead tip offset setting value by comparing with lead tip position
of side lead.