Keithley 6514

Limit Tests 10-5
Figure 10-5 shows the basic limit testing flowchart expanded to include binning. Notice that
there are five possible output patterns (one pass pattern and four fail patterns), but only one will
be sent to the component handler for each DUT that is tested.
Pass
?
Start
Measure
DUT
Yes
Limit 1
Test
No
Display
“L1”
Limit 1
Test
Pass
?
Display
“L2”
Display “OK” and
Output Pass Pattern
Yes
No
End
Which
Limit
Failed
?
Output Fail
Pattern
HI Limit
Failure
Output Fail
Pattern
LO Limit
Failure
Which
Limit
Failed
?
Output Fail
Pattern
HI Limit
Failure
Output Fail
Pattern
LO Limit
Failure
Test
Another
DUT
?
No
Yes
Figure 10-5
Operation model
for limit testing
with binning