User`s guide

4-22 Agilent 4155C/4156C User’s Guide Vol.2, Edition 6
Quasi-static C-V Measurements
Making a Measurement
Step 5. Set up the measurement parameters
Set the output parameters on the MEASURE: QSCV MEASURE SETUP screen.
Define the measurement parameters as shown below:
1. Press the
Meas front-panel key, and select the MEASURE SETUP softkey. The
MEASURE: QSCV MEASURE SETUP screen appears.
2. Set the MEASUREMENT UNIT table. The following values are just an
example.
The UNIT selects the measurement unit used to measure capacitance. The
FCTN just displays the function of the selected unit. The range selects the
measurement range. CNAME and INAME specify the variable name of the
capacitance measurement data and the leakage current data, where the variable
name must be unique. The same name must not be assigned for the VNAME and
INAME in the CHANNEL DEFINITION screen, and for the user function.
3. Set the INTEG TIME table. The following values are just an example.
This table sets the integration time for the capacitance measurement (QSCV)
and the leakage current measurement (LEAK) independently.
QSCV: 0.04 to 400 sec at 50 Hz line frequency, 0.033333 to 333.33 sec at 60 Hz
LEAK: 0.02 to 2 sec at 50 Hz line frequency, 0.016667 to 1.6667 sec at 60 Hz
UNIT SMU1
FCTN VAR1
RANGE 1 nA
CNAME CAP01
INAME LEAK01
TIME NPLC
QSCV 100 ms 5
LEAK 100 ms 5