Smu Circuit Common Connections - Keithley 4200-SCS Reference Manual

Section 4: Connections and Configuration

SMU circuit COMMON connections

Some test situations require SMUs to be connected to each DUT terminal. In these situations,
circuit COMMON is not hardwired to any of the DUT terminals. Therefore, the SMUs must be
able to internally connect circuit COMMON to their FORCE signal when the test requires a DUT
terminal to be connected to COMMON.
SMUs to test a transistor. Any of the three SMUs could be used to provide access to circuit
COMMON simply by programming it accordingly. See
(KITE)"
connection.
Figure 4-9
Typical SMU common connections
F
4-14
in Section 6 for more detailed instructions on configuring an SMU to provide a COMMON
Model 4200-SCS
F
8 7 6 5
1
F
SMU1
FORCE
GUARD
SMU2
FORCE
GUARD
SMU3
FORCE
GUARD
COMMON
Return to
Figure 4-9 shows typical SMU connections using three
"Keithley Interactive Test Environment
3 1
1
F F F
A. Connections
B. Equivalent circuit
Section Topics
Model 4200-SCS Reference Manual
SMU1-FORCE
SMU2-FORCE
SMU3-FORCE
4200-901-01 Rev. S / May 2017