Tektronix KEITHLEY System SourceMeter 2636B Reference Manual page 478

Section 11: TSP command reference
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
smuX.measure.nplc setting
The function returns true if threshold is reached; the function returns false if threshold is not
reached before timeout expires.
When testing the leakage current threshold:
•
Charge the capacitor before calling this function (the instrument's output is usually at a non-zero
voltage prior to calling this function; when measuring leakage, this function does not charge the
capacitor).
•
If testing the device's leakage current threshold, set levelv = 0.
Example
smua.source.highc = smua.ENABLE
smua.source.levelv = 5
smua.source.output = smua.OUTPUT_ON
delay(1)
pass = i_leakage_threshold(smua, 0, 1,
300e-3, 10e-6, 100e-3, 1e-6, 1)
Also see
High-capacitance mode
i_leakage_measure()
High-capacitance mode
KIHighC factory script
11-110
Series 2600B System SourceMeter® Instrument Reference Manual
(on page 4-83)
(on page 11-108)
(on page 4-83)
(on page 9-23)
Enable high-capacitance mode.
Charge the capacitor.
The parameters passed on to the
i_threshold_measure() function in this
example are:
smu = smua
levelv = 0 V
limiti = 1 A
sourcedelay = 300 ms
measurei = 10 µA range
measuredelay = 100 ms
threshold = 1 µA
timeout = 1 s
The levels and delays will depend on the
value and type of capacitor used.
Sets pass = true if the current is measured
below 1 µA in less than 1 second.
2600BS-901-01 Rev. E / January 2019