Remote Control Of Fet Testing Using Scpi Commands - Keithley Interactive SourceMeter 2450 User Manual

Model 2450 Interactive SourceMeter® Instrument User's Manual
The following figure shows the connections from the rear-panel terminals of both Model 2450
instruments to the MOSFET.
For this application, connect four triaxial cables (Model 7078-TRX-10) from the Model 2450
rear-panel female triaxial connectors to the MOSFET device. Mount the MOSFET device in a metal-
shielded test fixture with female triaxial connectors. Connect the Force LO terminals of both Model
2450 instruments to the Source terminal of the MOSFET using a triaxial tee connector (Model 237-
TRX-T).

Remote control of FET testing using SCPI commands

The two example sequences of SCPI commands for this application generate a drain family of curves
on a MOSFET using two Model 2450 instruments. One of the examples uses the trigger model to
generate the family of curves. The other example uses a linear sweep. You may need to make
modifications for operation in your programming environment.
2450-900-01 Rev. C / December 2013
Figure 32: Three-terminal I-V test configuration for a MOSFET
Figure 33: Two Model 2450s configured to test a three-terminal MOSFET
Section 7: Measuring I-V characteristics of FETs
7-5