Section 5: Using a Keysight 4284/4980A LCR Meter Model 4200A-SCS Prober and External Instrument Control
5-8 4200A-913-01 Rev. A December 2020
A typical graph that is generated by this test is shown below.
Figure 78: Typical C-V curve for a MOS capacitor
HP4284ulib user library
You use the user modules in the HP4284ulib user library to control the Keysight 4284A or 4980A
LCR Meter. These user modules are summarized in the following table.
Makes a single capacitance measurement.
Makes capacitance versus voltage measurements using a staircase sweep.
CvSweep4284 User Module
The CvSweep4284 routine performs a capacitance versus voltage (C-V) sweep using the Keysight
Model 4284A or Model 4980 LCR Meter.
Usage
status = CvSweep4284(char *InstIdStr, int LoPin, int HiPin, double StartV, double StopV,
double StepV, double SignalLevel, double Frequency, double Range, int Model, int
IntegrationTime, double *C, int Csize, double *V, int Vsize, double *G_or_R, int
G_or_Rsize);
Returned values; see Details
The CMTR instrument ID; CMTR1 or CMTR2, depending on your system
configuration
The DUT pin to which the 4284A or 4980 low terminal is attached (−1 to 72); if a
value of less than 1 is specified, no switch matrix connection is made; see Details
The DUT pin to which the 4284A or 4980 high terminal is attached (−1 to 72); if a
value of less than 1 is specified, no switch matrix connection is made; see Details
Starting voltage of the sweep: −40 V to 40 V
Ending voltage of the sweep: −40 V to 40 V
The sweep voltage step size: −40 V to +40 V; the value of ((StopV – StartV)/StepV)
+ 1 must be less than or equal to the values for Csize, Vsize, and G_or_Rsize
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