9-72
Lead inspection
9
K1
Lead
Line used in
checking the object
K2
K3
K4
P2
P1
P3
L4
L1
L2
L3
Purpose
Example
Checks IC leads and packages for connectors.
[Check the alignment of things like IC leads and packages for connectors.]
· Checking sequence
1
Determine the center points (K1 to K4) of those leads which are in a line to
inspect.
2
Check for any bending of leads that may have occurred by comparing the
shortest and longest P measurements with variations in those measurements
within the reference image.
3
Check the length of the leads, which is measured based the direction specified
before, by comparing the shortest and longest L measurements against those
within the reference image.
[Lead inspection]
· P1 to P3: The distance
between the center of
2 adjacent leads
· K1 to K4: The center
points of leads
· L1 to L4: Length of
lead
· Number of leads
· A lead with inadequate
position
Based on positional information obtained from the gray scale search function, inspect the
condition of IC leads and connector pins. (No. of detected lead pins : Max. 128 pieces)
Application
9-6 Lead inspection