Model 2450 Interactive SourceMeter® Instrument User's Manual
Section 7: Measuring I-V characteristics of FETs
2450-900-01 Rev. A / June 2013
7-5
Figure 31: Three-terminal I-V test configuration for a MOSFET
The connections from the rear panel terminals of both Model 2450 instruments to the MOSFET are
shown in the following figure.
Figure 32: Two Model 2450s configured to test a three-terminal MOSFET
For this example, four triaxial cables (Model 7078-TRX-10) are used to connect from the Model 2450
rear-panel female triaxial connectors to the MOSFET device, which is mounted in a metal-shielded
test fixture with female triaxial connectors. The Force LO terminals of the both Model 2450
instruments are connected 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. Modifications may be
necessary for operation in your programming environment.
