Startup Guide
5
C. Select the “vds-id” test and display the test Definition tab as shown in Figure 5. The Definition
tab for the “vds-id” test is shown in Figure 6.
Figure 5: “default” Project Navigator – selecting the “vds-id” test
Step 6 Test definition
The test is defined from the test Definition tab shown in Figure 6. As shown in the tab, the device is
connected to three SMUs and the Ground Unit (GNDU). In general, SMU3 is used as a voltage step function
to provide four different gate voltages (2V, 3V, 4V, and 5V). SMU2 is used to perform a 51 point sweep of
drain voltage (0V to 5V) at each gate voltage. A current measurement is performed at each voltage
sweep point.
A. If desired, the setup for SMUs and the GNDU can be changed. A settings window is displayed by clicking
the appropriate FORCE MEASURE bar as shown in Figure 6. Figure 7 shows the settings win-
dow for SMU3. The settings windows for the other SMUs and GNDU are similar.
Double-click “vds-id” to select the test
and display the test Definition tab.
The checkbox for “vds-id” must be
checked in order to run the test. If
unchecked, click the checkbox to
insert a ✔.