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3
Verifying System Functionality
To perform the system functional verification test (continued)
Step
15 For systems with the
Agilent 4284A precision
LCR meter, open the
junction capacitance
model (juncap.mdl) in
IC-CAP.
16 Select the DUT/Setup.
17 Set the LCR meter
instrument options.
18 Calibrate the LCR meter.
19 Measure the open circuit
capacitance.
20 Observe the results
* To familiarize yourself with the IC-CAP software, refer to the first three chapters of the Agilent IC-CAP 2004 User's Guide, model number
85190D.
† To save this hardware configuration: on the IC-CAP main menu bar, choose File > Save As and enter a filename, for example
config1.hwd (the file suffix must be .hwd).
‡ To save this hardware configuration: on the IC-CAP main menu bar, choose File > Save As and enter a filename, for example
config1.hwd (the file suffix must be .hwd).
**S12 is identical to S21 because the attenuator is assumed to be symmetrical.
This completes the functional verification procedure.
100
Action
a From the IC-CAP/Main window menu bar,
choose File > Examples... .
b In the Directories list of the File Open dialog
box, double-click on the directory
.../examples/model_files.
c In the Directories list of the File Open dialog
box, double-click on the directory
.../model_files/diode.
d In the Files list of the File Open dialog,
double-click on juncap.mdl.
a Select the DUTs-Setups tab.
b Click the area > cv setup.
a Select the Instrument Options tab.
b Highlight the Cable Length variable and
enter 2.
a On the 16048D test leads, connect one tee
between the H
and H
pot
b Connect the other tee between the L
L
connectors. Select the
cur
Measure/Simulate tab.
c Select Calibrate.
d Follow the IC-CAP prompts.
a Select Measure.
a After the calibration is complete, observe
the plot.
b Rescale the measured result (displayed in
red) cap.m.
Notes
•
This opens the File Open dialog box.
•
This opens a list of model files.
•
(Scroll the list, if needed.) This displays
a list of modeling files in the Files list of
the File Open dialog.
•
This opens the juncap model window.
•
The juncap model window contains tab
folders used to interact with the model
data.
•
This opens the capacitance vs. voltage
setup.
•
This sets the cable length in the LCR
meter instrument options.
•
This performs a calibration on the LCR
connectors.
meter.
cur
•
and
The BNC tee part number is 1250-2405.
pot
•
This measures the open circuit
capacitance.
•
The measured result should be less
than ±10E-15 farads.
Installation and User's Guide
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