User`s guide

4-18 Agilent 4155C/4156C User’s Guide Vol.2, Edition 6
Quasi-static C-V Measurements
Making a Measurement
Making a Measurement
In this section, you learn how to execute the QSCV measurements using the
4155C/4156C. As an example, you measure MOS capacitor. Measurement circuit
and typical characteristics are shown below:
NOTE For accurate measurements, let the 4155C/4156C warm up for at least 40 minutes
after you turn on the instrument, and then execute calibration. For self-calibration,
see Chapter 7.
Step 1. Prepare for measurement
Before executing measurement, configure the 4155C/4156C and Agilent 16442A
Test Fixture. See “Step 1. Prepare for the measurement” in “Making a
Measurement” in Chapter 1. The measurement example uses the same connection as
the sweep measurement example connection.
Step 2. Mount your DUT on the test fixture
1. Select a suitable socket module for your DUT (MOS capacitor).
2. Mount the socket module on the test fixture.
3. Mount the capacitor on the socket module.
4. Make connections with connection wires (miniature banana to pin plug, etc.).
The capacitor must be connected between SMU1 and SMU2.
5. After finishing connections, shut the lid of the test fixture.
A
MOS Capacitor
Capacitance
Voltage
SMU1
SMU2