Keithley 2611B Reference Manual

Section
7: TSP command reference Series 2600B System SourceMeter® Instrument
Reference Manual
7-102 2600BS-901-01 Rev. B / May 2013
Also see
i_leakage_threshold() (on page 7-102)
High-capacitance mode (on page 3-65)
KIHighC factory script (on page 5-22)
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.
Type TSP-Link accessible
Affected by Where saved Default value
Function
No
Usage
f = i_leakage_threshold(smu, levelv, limiti, sourcedelay, measurei, measuredelay,
threshold, timeout)
f
A Boolean flag; this flag will be true when the current is below the threshold,
false
if threshold is not reached before timeout expires
smu
System SourceMeter
®
instrument channel (for example, smua refers to SMU
channel A)
levelv
Voltage level to step to when this function is called
limiti
Current limit setting for the voltage step
sourcedelay
Delay to wait before lowering the current limit for measurement
measurei
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
measuredelay
Delay before the first measurement after measure range is changed
threshold
The specified current that establishes the test limit
timeout
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
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.

Keithley 2611B Specifications

General

Brand	Keithley
Model	2611B
Category	Measuring Instruments
Language	English