Section 3: Setting up SMUs in Clarius
Model 4200A-SCS Source-Measure Unit (SMU) User's Manual
3-12
4200A-SMU-900-01 Rev. A December 2020
Voltage List Sweep operation mode
The Voltage List Sweep operation mode allows you to customize the voltage values for each step of
the sweep. List sweeps allow you to make measurements only at selected forced voltages and
currents. For example, they allow you to skip unimportant measurement points or to synthesize a
custom sweep that is based on a special mathematical equation. You can also use list sweeps to
make pulsed measurements to avoid overheating of sensitive devices. The following figure illustrates
a possible list sweep.
Figure 39: Example list sweep
The voltage sweep generates parametric curve data that is recorded in the Analyze pane.
Voltage Log Sweep operation mode
The Voltage Log Sweep operation mode allows you to sweep over a large range and plot the
measurements on a logarithmic scale.
A linear sweep is typically unsatisfactory for such applications, because the first increment can miss
several of the lower decades. For example, the first ~0.1 V step of a 101-point linear sweep from
0.001 V to 10 V misses the two decades between 0.001 V and 0.1 V.
By contrast, a log sweep varies the step size logarithmically over the specified range, so that all
decades are characterized uniformly.
