User manual

12-6 Limit Testing 2400 Series SourceMeter
®
User’s Manual
NOTE If using the contact check option, see flowchart, Figure F-4, in Appendix F.
Binning control
The binning control selection determines when the testing process stops and the
appropriate binning operation occurs. The results are communicated through the Digi-
tal I/O port based on limit test data. (See “Binning systems,” page 12-10.) There are
two types of binning control for the grading mode: immediate and end.
NOTE Binning affects contact check tests. See Appendix F for details.
Immediate binning — Use immediate binning when you want to stop all testing
after the first failure occurs. Any pending tests will be cancelled, and the DUT will
be placed in the bin assigned to that test failure. If no failures occur, all enabled
tests will be performed, and the DUT will be placed in the assigned pass bin. This
process is demonstrated in
Figure 12-3.
Figure 12-3
Immediate binning
End binning — End binning allows a sweep to finish before performing the bin-
ning operation. In the event of a failure, the first test failure determines the bin
assignment. (See
Figure 12-4.)
Figure 12-4
End binning
Pass condition
For this discussion, assume that all grading mode limit tests pass. After the three
limit tests pass, the “PASS” message is displayed, and operation drops down to
Test1 Test2 Test3
Pass Fail Pass
Digital I/O
Pass/Fail
Notification
Test1
(Pass)
Test2
(Fail)
Test3
(Pass)
Fail
Digital I/O
Notification