Agilent 4155B/4156B User’s Guide Vol.2, Edition 5 4-61
Making a Measurement
Stress Force
SMU/Pulse Generator Selector
The selector has two types of switches: relay switch and semiconductor switch.
Normally, the relay switch has three states: SMU is connected to DUT, PGU is
connected to DUT, and neither is connected to DUT. The semiconductor switch,
which is in the PGU line, is used for high-speed switching.