6-78 Agilent 4155B/4156B User’s Guide Vol.2, Edition 5
Screen Organization
STRESS Screen Group
SMU/PG SELECTOR
Agilent 16440A SMU/PG selector's operation is defined in the SMU/PG
SELECTOR table. Switches in the SMU/PG selector are controlled as defined in
these fields. MEASURE column sets the switch connections for measurement state.
STRESS column sets the switch connections for stress force state.
When the pointer is located in this table, the following softkeys appear:
SMU Will connect DUT to SMU.
PGU Will connect DUT to PGU.
OPEN Will disconnect DUT from both SMU and PGU.
PGU OPEN Will disconnect DUT from both PGU and SMU. But PGU is
disconnected by using semiconductor switch. The normal relay
switch for PGU stays closed. This is used to prevent the normal relay
switch from being damaged. Semiconductor switch has longer life
than normal relay switch. Note that CH2 and CH4 do not have this
function.
For details about the SMU/PG selector, refer to “SMU/PG Selector Control” in
Chapter 3 or Agilent 16440A SMU/Pulse Generator Selector User's Guide.
TRIGGER SETUP
In the TRIGGER SETUP table, you can set how to use the trigger function during
the stress force state.
• ENABLE/DISABLE
In the ENABLE or DISABLE field, select:
• ENABLE secondary softkey to enable the trigger function.
• DISABLE secondary softkey to disable the trigger function.
• POLARITY
In this field, select:
• POSITIVE secondary softkey to set positive logic for the output trigger.
• NEGATIVE secondary softkey to set negative logic for the output trigger.
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