Cvsweep590 User Module - Keithley 4200A-SCS Reference Manual

Model 4200A-SCS Parameter Analyzer Reference Manual

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
CabCompFile
InstIdStr
InputPin
OutPin
OffsetCorrect
Waveform
FirstBias
LastBias
StepV
Frequency
DefaultBias
StartTime
StepTime
Range
Model
Filter
ReadingRate
C
4200A-901-01 Rev. C / February 2017
Returned values; see Details
The complete name and path for the cable compensation file; see Details
The CMTR instrument ID; CMTR1, CMTR2, CMTR3, or CMTR4, depending on your
system configuration
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
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
Determines if an offset correction measurement should be made:
•
Do not make offset measurement: 0
•
Make offset measurement: 1
Selects either the single staircase or dual staircase waveform:
•
Single: 1
•
Dual: 2
The starting voltage for the sweep: −20 V to +20 V
The last voltage used in the sweep: −20 V to +20 V
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
The measurement frequency to use:
•
100 kHz: 0
•
1 MHz: 1
The DC bias that is applied before and after a sweep: −20 V to +20 V
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
The time period after a transition to a new bias step and before the instrument
begins a measurement: 0.001 s to 65 s
The measurement range to use in F: 2E-12, 20E-12, 200E-12, or 2E-9; see Details
Measurement model:
•
Series model: 0
•
Parallel model: 1
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
Selects the reading rate used to acquire the measurements: 0 to 4; see Details
Output: The measured array of capacitance values
Appendix B: Using a Model 590 C-V Analyzer
B-27