Tektronix KEITHLEY System SourceMeter 2636B Reference Manual page 577

Series 2600B System SourceMeter® Instrument Reference Manual
Also see
Adjustment (on page A-16)
smuX.cal.restore()
smuX.cal.save()
smuX.cal.unlock()
smuX.contact.calibratehi()
smuX.contact.check()
This function determines if contact resistance is lower than the threshold. This command is not available on the
2604B/2614B/2634B.
Type TSP-Link accessible
Function Yes
Usage
smuX.contact.check()
X
Details
This function returns true if the contact resistance is below the threshold; this function returns
false if it is above the threshold. The threshold value is set by the smuX.contact.threshold
attribute.
If you attempt to perform a contact check measurement when any of the following conditions exist, an
error is generated:
When the output is on and any of the following:
•
SMU is a current source with current range set to less than 1 mA (error code 5065, "I range too
low for contact check")
•
SMU is a voltage source with current limit set to less than 1 mA (error code 5050, "I limit too low
for contact check")
When the output is off and any of the following:
•
The output off mode is High-Z (error code 5048, "Contact check not valid with HIGH-Z OUTPUT
off")
•
The output off mode is Normal with the smuX.source.offfunc attribute set to
smuX.OUTPUT_DCVOLTS and the off current limit set to less than 1 mA (error code 5066,
"source.offlimiti too low for contact check")
•
The output off mode is Normal with the smuX.source.offfunc attribute set to
smuX.OUTPUT_DCAMPS and the source range is less than 1 mA (error code 5065, "I range too
low for contact check")
2600BS-901-01 Rev. E / January 2019
(on page 11-203)
(on page 11-204)
(on page 11-206)
(on page 11-206)
Affected by
Source-measure unit (SMU) channel (for example, smua.contact.check()
applies to SMU channel A)
Section 11: TSP command reference
Where saved Default value
11-209