Agilent Technologies 93000 SOC Series Training Manual page 448

Shmoo Tool 16-3 Shmoo Plots
First Failing Cycle Shmoo Plot
If you have selected the test mode in the Test Control window for
FFCI
the Shmoo Plot, the first cycle number in which the Functional Test
failed is displayed. This helps you to gain an overall picture of where
the test is failing, and what is causing the test to fail.
Figure 271 First Failing Cycle Shmoo Plot
Each different cycle that causes the first failure is allocated a color.
Each test that first failed in the same cycle is allocated the same color.
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Agilent 93000 SOC Series User Training Part 1, October 2004