User`s guide

Agilent 4155C/4156C User’s Guide Vol.2, Edition 6 8-25

Support Functions

SMU/PG Selector Control

The 4155C/4156C can control the 16440A SMU/Pulse Generator Selector to

automatically switch units that are connected to a DUT pin. You set up this

automatic control using the SMU/PG SELECTOR field on the STRESS:

CHANNEL DEFINITION screen.

For example, you can specify to connect the PGU to the DUT during stress, and

connect the SMU to the DUT during measurement. So, when you press the

Stress key

in the MEASUREMENT key group, the PGU is automatically connected to the

DUT. And when you press a measurement key, the SMU is automatically connected

to the DUT.

You can use up to two selectors. For details about installation of the selectors, refer

to User's Guide General Information.

Figure 8-6 shows the simplified circuit diagram of an 16440A selector.

Figure 8-6 Simplified Circuit Diagram of the 16440A Selector