Max Voltage Estimator; Threshold Current; Threshold Voltage; Threshold Power - Keithley 4200A-SCS User Manual

Model 4200A-SCS Pulse Card (PGU and PMU) User's Manual

Max Voltage Estimator

The Maximum Voltage Estimator is a tool that enables you to calculate the maximum voltage and
current based on the selected voltage range and the DUT resistance value you type in. The estimator
does not affect the pulse output.
For a more accurate maximum voltage estimate, add the interconnect resistance to the DUT
resistance value. The typical resistance of a white SMA cable is 0.75 Ω and the typical prober
pin-to-pad resistance is 1 Ω to 3 Ω. Poor pin-to-pad contacts could be in the range of 10 Ω to 15 Ω.
The V Max and I Max values are valid with LLEC enabled or disabled. It is the maximum output of the
PMU. The LLEC does not change the maximum output voltage or current of the PMU.

Threshold Current

The current threshold allows you to set a threshold. If the threshold is reached or exceeded, the
present sweep is stopped. Testing continues with any subsequent sweeps.
This threshold is a comparison of the measurement after the pulse has been applied to the DUT (the
threshold value will be exceeded, at least slightly). The degree to which the signal exceeds the
threshold before the threshold is triggered is a function of the DUT response and test configuration.
Generally, smaller voltage step sizes will reduce the amount that the signal exceeds the threshold.
You can specify more than one threshold for each channel.

Threshold Voltage

The voltage threshold allows you to set a voltage threshold. If the threshold is reached or exceeded,
the present sweep is stopped. Testing continues with any subsequent sweeps.
This threshold is a comparison of the measurement after the pulse has been applied to the DUT (the
threshold value will be exceeded, at least slightly). The degree to which the signal exceeds the
threshold before the threshold is triggered is a function of the DUT response and test configuration.
Generally, smaller voltage step sizes will reduce the amount that the signal exceeds the threshold.
You can specify more than one threshold for each channel.

Threshold Power

The power threshold allows you to set a power threshold. If the threshold is reached or exceeded, the
present sweep is stopped. Testing continues with any subsequent sweeps.
This threshold is a comparison of the measurement after the pulse has been applied to the DUT (the
threshold value will be exceeded, at least slightly). The degree to which the signal exceeds the
threshold before the threshold is triggered is a function of the DUT response and test configuration.
Generally, smaller voltage step sizes will reduce the amount that the signal exceeds the threshold.
You can specify more than one threshold for each channel.
4200A-PMU-900-01 Rev. A December 2020
Section 3: Setting up PMUs and PGUs in Clarius
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