4
Agilent 16441A User’s Guide, Edition 4
User's Guide
Operation
Operation
The R-Box adds a series resistance between the 4155/4156 Semiconductor
Parameter Analyzer and DUT. Available resistance values are 0
W
, 10 k
W
, 100 k
W
,
and 1 M
W
. There is two channels (CH1 and CH2) to connect SMUs.
Switching of resistance is controlled by the 4155/4156. After you set a resistance
value on the 4155/4156 setup screen, the R-Box sets the selected resistance value
when the 4155/4156 is in the measurement state.
Available Measurement Units
The R-box is effective for the following SMUs:
•
SMU1
•
SMU2 or SMU5
If the 4155/4156 is installed with the 41501 PGU/PG Expander which has an
HPSMU (High Power SMU), SMU5 is available instead of SMU2.
Measurement Data Compensation
The resistance value is automatically compensated for by the 4155/4156. So, the
data displayed on the GRAPH/LIST screen of the 4155/4156 or data used for user
function is the compensated data.
If you connect the R-Box to SMUs other than described above, resistance values are
not compensated for automatically. You need to compensate for the resistance
values manually, such as by using a user function or calculation in IBASIC program.
NOTE
Additional Measurement Channel for Compensation
Be aware that an additional measurement channel is automatically used if
both
the
following are true:
•
You
force voltage
from channel that is connected to R-Box, and
•
You display this voltage variable on the GRAPH/LIST screen, or use voltage
variable in user function.
So if both above are true for a channel, and you set another one measurement
channel, the 4155/4156 uses two measurement channels automatically.
