Tektronix Keithley 4225-PMU - Page 7

Table of contents
Model 4200A-SCS Pulse Card (PGU and PMU)
User's Manual
Configure the PGU, PMU, and RPM using tests ................................................................. 3-1
Create a PMU project ........................................................................................................... 3-2
Configure the tests ............................................................................................................... 3-3
PMU operation modes ......................................................................................................... 3-5
PMU - all terminal parameters ............................................................................................. 3-6
Start (PMU Amplitude Sweep) .................................................................................................. 3-6
Stop (PMU Amplitude Sweep) ................................................................................................... 3-6
Step (Pulse Amplitude Sweep) .................................................................................................. 3-7
Points ........................................................................................................................................ 3-7
Base .......................................................................................................................................... 3-7
Amplitude .................................................................................................................................. 3-7
Dual Sweep (pulse) ................................................................................................................... 3-8
Force Range (PMU) .................................................................................................................. 3-8
Disable outputs at completion ................................................................................................... 3-8
Current Spot Mean High ........................................................................................................... 3-9
Current Spot Mean Low ............................................................................................................ 3-9
Measure Current Range (PMU) ................................................................................................ 3-9
Low Range .............................................................................................................................. 3-10
Current Sample Waveform ...................................................................................................... 3-10
Voltage Spot Mean High ......................................................................................................... 3-11
Voltage Spot Mean Low .......................................................................................................... 3-11
Voltage Sample Waveform...................................................................................................... 3-11
Report Timestamps ................................................................................................................. 3-11
Report Status (PMU) ............................................................................................................... 3-12
PMU measurement status ....................................................................................................... 3-12
Compensation Short Connection ............................................................................................ 3-15
Load Line Effect Compensation .............................................................................................. 3-15
DUT Resistance (R DUT) ........................................................................................................ 3-15
Max Voltage Estimator ............................................................................................................ 3-15
Threshold Current ................................................................................................................... 3-15
Threshold Voltage ................................................................................................................... 3-16
Threshold Power ..................................................................................................................... 3-16
PMU Test Settings ............................................................................................................. 3-16
Pulse Settings ......................................................................................................................... 3-16
Timing Parameters .................................................................................................................. 3-20
PMU Advanced Test Settings ................................................................................................. 3-22
PMU capacitive charging/discharging effects .................................................................... 3-35
PMU and RPM measure ranges are not source ranges .................................................... 3-37
4220-PGU and 4225-PMU output limitations ..................................................................... 3-38
Configure the PGU, PMU, and RPM using tests ............................................................... 3-38
Step or sweep multiple device terminals in the same test ................................................. 3-39
Basic troubleshooting procedure ....................................................................................... 3-41
Step 1. Verify prober connections from the PMU or RPM to the DUT ..................................... 3-41
Step 2. Verify the pulse shape ................................................................................................ 3-42
Step 3. Is the pulse level correct for each channel? ................................................................ 3-43
Step 4. Is the pulse I-V curve suspect? ................................................................................... 3-43
Pulse card concepts ................................................................................................ 4-1
Models 4220-PGU and 4225-PMU ...................................................................................... 4-1
PMU block diagram ................................................................................................................... 4-2
Pulse modes ............................................................................................................................. 4-3