Agilent Technologies 4156b, User Manual, Page: 81 / 414

Agilent 4155B/4156B User’s Guide Vol.2, Edition 5 3-7
Measurement Functions
Stress Force Function
Stress Force Sequence
This section explains the source output sequence when starting the stress force, and
when finishing the stress force.
• Output sequence from idle state to the stress state
• Output sequence in the stress state
• Output sequence from stress state to the idle state
Output sequence (idle state to the stress force state)
When the state changes from the idle state to the stress force state, the channels
output the following values:
ac stress (
SYNC
) channel: specified base value
dc stress (
SYNC
) channel: 0 V or 0 A
non-stress (
NSYNC
) channel: specified source value or pulse output
The output sequence of the channels depends on the order specified on the
MEASURE: OUTPUT SEQUENCE screen. For details, refer to “Sequential Mode”
on page 3-35.
Stress force sequence (in the stress force state)
• stress output
Stress force channels output stress at the same time when the stress start trigger
is received. Stress start trigger is sent
hold time after the last channel changes
from idle state to stress force state.
• stress stop
Stress force channels stop stress at the same time. When you set up both ac and
dc stress on the STRESS: CHANNEL DEFINITION screen, ac stress channels
stop several microseconds before the dc stress channels.
If you set delay time for pulse stress, finish of stress force time is after the period
of the last pulse. (See Figure 3-1 on page 3-9.)