Model 4200A-SCS Parameter Analyzer Reference Manual
Appendix B: Using a Model 590 C-V Analyzer
4200A-901-01 Rev. C / February 2017
B-27
CvSweep590 user module
The
CvSweep590
routine does a capacitance versus voltage (C-V) sweep using the Keithley Instruments 590 C-V
Analyzer. You can make an offset correction measurement and use cable compensation.
Usage
status = CvSweep590(char *
CabCompFile
, char *
InstIdStr
, int
InputPin
, int
OutPin
,
int
OffsetCorrect
, int
Waveform
, double
FirstBias
, double
LastBias
, double
StepV
, int
Frequency
, double
DefaultBias
, double
StartTime
, double
StepTime
,
double
Range
, int
Model
, int
Filter
, int
ReadingRate
, double *
C
, int
Csize
,
double *
V
, int
Vsize
, double *
G_or_R
, int
G_or_Rsize
, double *
T
, int
Tsize
);
status
Returned values; see
Details
CabCompFile
The complete name and path for the cable compensation file; see
Details
InstIdStr
The CMTR instrument ID;
CMTR1
,
CMTR2
,
CMTR3
, or
CMTR4
, depending on your
system configuration
InputPin
The DUT pin to which the 590 input terminal is attached (
−
1 to 72); if a value of less
than 1 is specified, no switch matrix connection is made; see
Details
OutPin
The DUT pin to which the 590 output terminal is attached (
−
1 to 72); if a value of
less than 1 is specified, no switch matrix connection is made; see
Details
OffsetCorrect
Determines if an offset correction measurement should be made:
•
Do not make offset measurement:
0
•
Make offset measurement:
1
Waveform
Selects either the single staircase or dual staircase waveform:
•
Single:
1
•
Dual:
2
FirstBias
The starting voltage for the sweep:
−
20 V to +20 V
LastBias
The last voltage used in the sweep:
−
20 V to +20 V
StepV
The voltage step size:
−
20 V to +20 V; the value of
((
LastBias
−
FirstBias
) /
StepV
) + 1 must be less than or equal to the
Csize
,
Vsize
,
G_or_Rsize
, and
Tsize
parameters
Frequency
The measurement frequency to use:
•
100 kHz:
0
•
1 MHz:
1
DefaultBias
The DC bias that is applied before and after a sweep:
−
20 V to +20 V
StartTime
The time that occurs on the first bias step, from the point the instrument is first
triggered until the first step time: 0.001 s to 65 s
StepTime
The time period after a transition to a new bias step and before the instrument
begins a measurement: 0.001 s to 65 s
Range
The measurement range to use in F: 2E-12, 20E-12, 200E-12, or 2E-9; see
Details
Model
Measurement model:
•
Series model:
0
•
Parallel model:
1
Filter
Enable or disable the analog filter, which can minimize the amount of noise that
appears in the readings; however, it increases the measurement time:
•
Disable the filter:
0
•
Enable the filter:
1
ReadingRate
Selects the reading rate used to acquire the measurements: 0 to 4; see
Details
C
Output: The measured array of capacitance values
