Setting Ac Stress Properties - Keithley 4200-SCS User Manual

Model 4200-SCS User's Manual
Table 3-25
Setup steps for the first device in the Subsite Plan (continued)
Step Description
7 Use the lists to control Stress Measurements. Options include:
• Do Not Measure
• First Stress Only
• Every Stress Cycle
See Stress measurements.
8 For a multi-device Subsite Plan, click Next Device to display the stress properties window for the next device. Click
Prev Device to select the previous device. See
9 Repeat steps 2 through 7 for all devices in the Subsite Plan.
10 Repeat steps 1 through 9 to configure the Device Stress Properties for another site.
11 When active, enable to leave the outputs on after the end of a stress cycle. See
12 Click to check SMU or VPU resources and connections for the active (displayed) site. Resource Status will indicate if
enough SMUs and VPUs are present. Connections status will report any problems with matrix connections. See
Device pin connections.
13 When finished setting the stress properties for all devices and all sites, click OK. To cancel all changes and close the
window, click Cancel.
14 In the Subsite Plan tab (see
Properties window.
NOTE
NOTE
NOTE

Setting AC stress properties

With the AC voltage stress type selected, DC and AC stress properties can be
set.
matrix) to channel 2 of the VPU (AC stress). The device is also connected to
SMU1 for DC stress.
• Device Pin / SMU connections:
4200-900-01 Rev. K / February 2017
Figure 3-51), click Apply to apply and save the settings made in the Device Stress
To copy between sites, refer to
page 3-84.
After setting the device stress properties for all devices and sites, you must do steps
13 and 14 of the above procedure to apply and save the new settings. Failure to do
so will cause the new settings to be lost.
In the Device Stress Properties windows, the names for device terminals (for
example, Drain, Gate, Source and Bulk) and the enabled fields for those terminals
are set automatically by KITE. The terminal names correspond to the terminal names
used by the ITMs for the device. When you double-click an ITM in the project
navigator for the device, it will show the schematic of the device and the names of the
terminals.
Figure 3-60 shows an example for a device that is connected directly (no
In this area of the window, the 2 pin assignment and the checked box for
VPU indicates that the gate is connected to channel 2 of the VPU.
Return to
Section 3: Common Device Characterization Tests
Device selection. Also see
Clear, copy, paste, and paste to all sites on
Section Topics
Clear, copy, paste, and paste to all
Leave stress conditions
sites.
on.
3-75