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III- 43 Programming Manual Part III Inspection Algorithm Step7: This is the parameter setting for solder inspection. It calculates average brightness level in pad lead area and pad center area as sample value. If the sam…
III-42
Programming Manual
Part III Inspection Algorithm
Step5: This is the parameter setting for lead length inspection. It calculates the average value of
leads length in the same side of the component. The difference in amount between average
length and actual lead length is shown as sample value (gray text-box in the lower left side
of Lead length judgement). If the sample value is lower than OK range, the result will be
OK. The inspection logic is same as Part III 1.22 AS_Av_LeadLength.
Default is 100 [μm]. If necessary, change the value according to inspection accuracy.
Average value for leads length
Average
Average
Average
Average
in the same side of the body
- Selected lead length
Figure 1-46 Lead Length
Step6: This is the parameter setting for lead shift inspection. The shift amount from lead end area
and pad end area is shown as sample value (gray text-box in the lower left side of Lead
shift judgement). If the sample value is lower than OK range, the result will be OK.
Default is 100 [μm]. If necessary, change the value according to inspection accuracy.
Lead End Area
Pad End Area
Figure 1-47 Lead Shift
III-43
Programming Manual
Part III Inspection Algorithm
Step7: This is the parameter setting for solder inspection. It calculates average brightness level in
pad lead area and pad center area as sample value. If the sample value is lower than OK
range, the result will be OK.
Default is 230. If necessary, change the value according to inspection accuracy.
NOTE
The average brightness level is lower in case of no solder or insuffi cient solder.
(a) Normal
(b) Insufficient Solder
Low Brightness High Brightness
(c) No Solder
High Brightness
Pad Center Area
Pad Lead Area
Figure 1-48 Solder Inspection
Step8: This is the parameter setting for copper exposure inspection. It is useful to detect copper
area due to insuffi cient solder. It calculate the percentage of copper color defi ned as more
than 80% of hue and color saturation and more than 60% of brightness in pad lead, pad
center, and pad end area. If the sample value is lower than OK range, the result will be OK.
The default is 10%. If necessary, change the value according to the solder condition.
Pad Center Area
Pad Lead Area
Pad End Area
Figure 1-49 Copper Inspection
III-44
Programming Manual
Part III Inspection Algorithm
Step9: This is the parameter setting for lifted lead inspection. Lifted lead inspection has two steps.
First inspection calculates average brightness level in pad end area. If the sample value is
higher than OK range, the result will be OK. Default is 100. If necessary, change the value
according to the inspection accuracy. If the fi rst inspection is NG, the second inspection
shown in Step10 will be done.
(a) Normal
(b) LiftedLead
High Brightness
Low Brightness
Pad End Area
Figure 1-50 Lifted Lead Inspection 1