Keithley SourceMeter 2600B Series, Reference Manual

Page: 451 / 897

Section 7: TSP command reference Series 2600B System SourceMeter® Instrument Reference Manual
7-112 2600BS-901-01 Rev. C / August 2016
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
smu X .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)
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 µ A range
measuredelay = 100 ms
threshold = 1 µ A
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 µ A in less than 1 second.
Also see
High-capacitance mode (on page 3-65)
i_leakage_measure() (on page 7-110)
High-capacitance mode (on page 3-65)
KIHighC factory script (on page 5-23)
InitiatePulseTest()
This KIPulse factory script function initiates the pulse configuration assigned to tag .
Type TSP-Link accessible
Affected by Where saved Default value
Function No