Keithley 4200A-SCS Reference Manual page 428

Model 4200A-SCS Parameter Analyzer Reference Manual
6. Disconnect all devices.
7. Use the switch matrix to automatically connect the SMUs to device 1.
8. Wait for a 10 s delay to promote uniform pre-test decay for all devices.
9. Run test cycle 1, running post-stress parametric tests on each device individually in device-
number sequence, as shown in the following figure.
10. Disconnect all devices.
11. Reconnect all devices for stress cycle 2.
12. Run stress cycle 2.
13. Disconnect all devices.
14. Reconnect all devices for test cycle 2.
15. Wait for a 10 s to promote uniform pre-test decay for all devices.
16. Run test cycle 2.
17. Continue with stress and tests cycles (3, 4, ... n) until a device degrades to all enabed target
values or goes into compliance.
18. Stop testing this device but continue stress and test cycles until another device degrades to all
target values or goes into compliance.
19. Stop testing this second device, but continue stress and test cycles until one of the folowing
occurs:

All devices have either degraded to target values or have gone into compliance.

Total stress time reaches a user-specified value.
Set up stress/measure mode timing
When Stress/Measure Mode is selected, you need to set up the timing for the stress/mode cycles.
You can choose:
•
Linear: After the first stress cycle, all stress times are identical.
•
Log: After the first stress cycle, all stress times increase logarithmically.
•
List: You set the stress cycle times.
To set up the timing:
1. Select Configure or Analyze.
2. In the Stress Mode Setup tab in the right pane, select Stress/Measure Mode. Refer to
the stress mode
3. Select the stress time, Linear, Log, or List.
4. If you selected:

Linear: Go to

Log: Go to

List: Go to
4200A-901-01 Rev. C / February 2017
Figure 322: Post-stress parametric tests
(on page 6-153).
Set up Linear Stress/Measure timing
Set up Log Stress/Measure timing
Set up List Stress/Measure timing
(on page 6-160).
(on page 6-161).
(on page 6-162).
Section 6: Clarius
Choose
6-159