Keithley 4200A-SCS - Ctsweep82 User Module

Model 4200A
-SCS Parameter Analyzer Reference Manual Appendix D: Using a Model 82 C-
V System
4200A-901-01 Rev. C / February 2017 D-33
CtSweep82 user module
The CtSweep82 user module measures capacitance as a function of time at a certain bias.
Usage
status = CtSweep82(int Frequency, double Default_Bias, double Stress_Time, double
Test_Bias, double Sample_Time, int Reading_rate, int Num_Points, int Range590,
int Model590, int Filter590, char *CabComFile, int OffsetCorrect, char
*instr_id, int InputPin, int OutPin, double *CHF, int CHF_ArrSize, double
*G_or_R, int G_or_R_ArrSize, double *Time, int Time_ArrSize);
status
Returned values are placed in the Analyze sheet; see Details
Frequency
The measurement frequency:
• 100 kHz: 0
• 1 MHz:
1
Default_Bias
DC bias applied before and after a C-t sweep (−20 V to +20 V)
Stress_Time
Duration of the default bias before test bias is applied (0.001 s to 65 s)
Test_Bias
Voltage bias for capacitance measurements (−20 V to +20 V)
Sample_Time
Time delay between each sampling measurement (0.001 s to 65 s)
Reading_rate
The reading rate used to acquire the measurements (1 to 4; see Details)
Num_Points
Number of sampling points (1 to 1350)
Range590
The measurement range for the 590 (1 to 4; see Details for valid range values)
Model590
The measurement model to use for high frequency measurement:
• Parallel mode: 0
• Series model:
1
Filter590
Enable or disable the analog filter; see Details:
• Disable the filter: 0
•
Enable the filter: 1
CabCompFile
The complete name and path for the cable compensation file; see Details
OffsetCorrect
Enable or disable an offset correction measurement:
• Disable offset correction: 0
•
Enable offset correction: 1
instr_id
KCon instrument ID; default is CMTR1; can be CMTR1 to CMTR4, depending on your
system configuration
InputPin
The DUT pin to which the 5951 input terminal is attached (−1 to 72); if a value of
less than 1 is specified, no switch matrix connections are made; see
Details
OutPin
The DUT pin to which the 5951 output terminal is attached (−1 to 72); if a value of
less than 1 is specified, no switch matrix connections are made; see Details
CHF
Output; the measured array of high frequency capacitance values
CHF_ArrSize
Set to 1350
G_or_R
Output; the array of measured conductance (G) or resistance (R) values
G_or_R_ArrSize
Set to 1350
Time
Output; the array of time from the 595 output for each measurement step
Time_ArrSize
Set to 1350