Model 2601B-PULSE System SourceMeter Instrument Reference Manual Section 11: TSP command reference
2601B-PULSE-901-01A April 2020 11-101
Also see
i_leakage_threshold() (on page 11-101)
High-capacitance mode (on page 4-80)
KIHighC factory script (on page 9-21)
i_leakage_threshold()
This KIHighC factory script function measures the current and compares it to a threshold. This continues until
either the measured current drops below the threshold or the timeout expires.
Usage
f = i_leakage_threshold(smua, levelv, limiti, sourcedelay, measurei, measuredelay,
threshold, timeout)
A Boolean flag; this flag is true when the current is below the threshold, false if
threshold is not reached before timeout expires
Voltage level to step to when this function is called
Current limit setting for the voltage step
Delay to wait before lowering the current limit for measurement
Current limit (and measure range); note the current limit is lower at this level and
because high-capacitance mode is active, the measure range will follow
Delay before the first measurement after measure range is changed
The specified current that establishes the test limit
Amount of time (in seconds) to wait for the current to drop to threshold after all the
delays have occurred
Details
This function causes the SMU to:
• Change its current limit to limiti with a voltage output of levelv for sourcedelay time, and
then changes its current limit to measurei (that also changes the measurement range to
measurei) for measuredelay time.
• When measuredelay time expires, measurements are taken at a rate determined by the
smua.measure.nplc setting.
When testing the leakage current threshold:
• Charge the capacitor before calling this function. The output of the instrument is usually at a
non-zero voltage before calling this function; when measuring leakage, this function does not
charge the capacitor.
• If testing the leakage current threshold of the device, set levelv = 0.
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