Four-Terminal Device Connections - Keithley 4200A-SCS User Manual

Section 2: Connections

Four-terminal device connections

To test a four-terminal device, two PMUs are usually required. The following figure shows the four
PMU channels connected to a four-terminal MOSFET. This configuration enables you to have
complete flexibility to enable pulsing and measuring at any terminal on the device. Notice that the
shields of the SMA cables from all four channels are connected as closely as possible to the device
under test.
2-12
Figure 13: Four-terminal device connection to two PMUs
Model 4200A-SCS Pulse Card (PGU and PMU) User's Manual
4200A-PMU-900-01 Rev. A December 2020