Smart Gui - Algorithm Training Material_rev1.pdf - 第116页
Copyright © ViT rox All Rights Reserved . S-T ype Algorithm - Joint Inspection 1 16 3. Lifted Thres (um) & Missing Thres (um) Reference Lead Height Lead Height - Missing Lead Thres Lead Height + Lifted Lead Thres Pas…
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S-Type Algorithm - Joint Inspection
115
1. Lead Inspection
● Consists of 2 modes.
Mode Description
Relative Software will calculate the average height for each lead and
used it as the reference height for lifted lead inspection.
Absolute Lead Height (um) that we keyin will be used as the reference
height for lifted lead inspection.
2. Lead Height
● To pre set the height for the lead.
● Need to use this value during lifted lead inspection.
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S-Type Algorithm - Joint Inspection
116
3. Lifted Thres (um) & Missing Thres (um)
Reference
Lead Height
Lead Height
-
Missing Lead
Thres
Lead Height
+
Lifted Lead
Thres
Pass
Fail
(Lifted Lead)
Fail
(Missing Lead)
4. Tip Length (%)
● The lead tip location is always fall at the end of lead box from
the direction body box to lead box
● Tip Length is the selected region to inspect lifted lead and
missing lead.
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S-Type Algorithm - Joint Inspection (Coverage)
117
1. Joint Size & Joint Offset
● To adjust the sizes and the offset for joint inspection boxes
2. 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
3. Joint Follow Locator
● Tick this to enable the joint inspection ROI follow the locator.
4. Joint Grey Thres
● Usually set to 160
4. Joint Height Thres
5. Joint Coverage Thres(%)
● To set the percentage to pass the joint inspection.
Grey Thres
Measured Grey Thres
PASS
FAIL
Height Thres (um)
Measured Height(um)
PASS
FAIL