Model 4200A-SCS Pulse Card (PGU and PMU) User's Manual
Section 3: Setting up PMUs and PGUs in Clarius
4200A-PMU-900-01 Rev. A December 2020
3-23
Settling time includes the following τ (tau) time constants:
•
τInstrument:
Varies mainly with current range.
•
τSystem:
Due to cables, switches, and probers.
•
τDUT (Device Under Test):
Due to the implicit characteristics of the DUT.
•
τDielectric Absorption:
An issue only on the low current ranges.
Settling time is measured from the 90 percent point on the rising edge to the point where the pulse
level remains in the accuracy band, as shown in the following figure.
Figure 52: Settling time
Sweep Master
Designates which instrument is the master if there are multiple steps or sweeps in a test. Refer to
Step or sweep multiple device terminals in the same test
(on page 3-40) for detail.
Output Values
If you are using subsites, each time a subsite is cycled, the measurements for the selected Output
Values are placed in the Analyze sheet for the subsite. For example, if the subsite is cycled five times,
there will be five measured readings (Output Values) for the test. For details, see “Subsite cycling” in
the
Model 4200A-SCS Clarius User Manual
.
Formulator
Opens the Formulator. The Formulator allows you to make data calculations on test data and on the
results of other Formulator calculations.
Refer to “Formulator” in the
Model 4200A-SCS Clarius User Manual
for detail on using the
Formulator.
