Keithley 4200-SCS, User Manual, Page: 170 / 335

3-64 Return to Section Topics 4200-900-01 Rev. K / February 2017
Section 3: Common Device Characterization Tests Model 4200-SCS User’s Manual
scopeshot_pulseiv
Description The scopeshot_pulseiv routine displays a single Pulse IV scopeshot. This routine
is useful to understand the basic source and measure concepts behind the Pulse
IV methods for pulse vds-id and vgs-id. The scope waveforms are retrieved and
displayed for both channels (no measurements are made). Make sure to set the
appropriate values for the scopeshot_pulseiv (see
Table 3-22 ). Table 3-23 and
Table 3-24 contain outputs and return values, respectively.
Connection The source and body (well) of the DUT must be shorted together and connected to
the common low (outer shield) of the SMA cables on the AC+DC output of the
4200-RBT. The RBT connected to GateSMU (with the Power Divider) should be
connected to the gate. The RBT connected to DrainSMU should be connected to
the drain. For detailed connection information, refer to the
PIV-A interconnect
assembly procedure on page 3-35 .
Table 3-20
Outputs for scopeshot_cal_pulseiv
Output Type Description
Time double * Array of time values from the 4200-SCP2 scope (s).
GatePulse double * Array of gate pulse voltages from channel 1 of the 4200-SCP2 scope.
DrainPulse double * Array of drain voltages from channel 2 of the 4200-SCP2 scope.
VgMeas double * Measured Gate Voltage.
VdMeas double * Measured Drain Voltage.
IdMeas double * Measured Gate Current.
Table 3-21
Return values for scopeshot_cal_pulseiv
Value Description
0
OK
-1 Invalid Gate Voltage (maximum 5 V).
-2 Invalid Drain Voltage (maximum 210 V).
-5 Invalid Pulse Width (minimum 40 ns).
-6 Invalid Pulse Period (minimum 40 ns).
-7 Invalid Average Num (must be between 1 and 100000).
-8 Invalid LoadLineCorr (must be between 0 and 1).
-9 Time, GatePulse, and Drain Pulse array sizes must be equal.
-11 Invalid VPU. Specified VPU is not in current system configuration.
-12 Invalid GateSMU. Specified SMU is not in current system configuration.
-13 Invalid DrainSMU. Specified SMU is not in current system configuration.
-14 PIV Initialization Failed.