Keithley 4200A-SCS

Table of Contents
Model 4200A-SCS Parameter Analyzer
Reference Manual
Higher channel count test example ......................................................................................... 5-27
PMU connection compensation ......................................................................................... 5-30
Perform connection compensation .......................................................................................... 5-32
Enabling connection compensation ......................................................................................... 5-33
Load-line effect compensation (LLEC) for the PMU .......................................................... 5-34
Methods to compensate for load-line effect............................................................................. 5-34
How LLEC adjusts pulse output to the target levels ................................................................ 5-35
Coping with the load-line effect ............................................................................................... 5-36
LLEC maintains even voltage spacing .................................................................................... 5-37
Test considerations ................................................................................................................. 5-38
LPT functions used to configure LLEC .................................................................................... 5-38
Enable LLEC ........................................................................................................................... 5-39
Disable LLEC and set the output impedance .......................................................................... 5-40
Pulse parameter definitions ............................................................................................... 5-40
PMU minimum settling times versus current measure range ............................................ 5-41
PMU capacitive charging/discharging effects .................................................................... 5-42
PMU and RPM measure ranges are not source ranges .................................................... 5-44
4220-PGU and 4225-PMU output limitations ..................................................................... 5-45
4200A-SCS power supply limitations ................................................................................. 5-46
Basic troubleshooting procedure ....................................................................................... 5-48
Step 1. Verify prober connections from the PMU or RPM to the DUT ..................................... 5-48
Step 2. Verify the pulse shape ................................................................................................ 5-49
Step 3. Is the pulse level correct for each channel? ................................................................ 5-50
Step 4. Is the pulse I-V curve suspect? ................................................................................... 5-50
Pulse source-measure concepts ........................................................................................ 5-55
Ultra-fast I-V tests ................................................................................................................... 5-55
Segment Arb waveform ........................................................................................................... 5-56
Full arb waveform .................................................................................................................... 5-59
Pulse waveforms for nonvolatile memory testing .................................................................... 5-60
DUT resistance determines pulse voltage across DUT ........................................................... 5-61
Triggering ................................................................................................................................ 5-66
Pulse source-measure connections ........................................................................................ 5-69
Measurement types ............................................................................................................ 5-70
Spot mean measurements ...................................................................................................... 5-70
Spot mean discrete readings ................................................................................................... 5-70
Spot mean average readings .................................................................................................. 5-71
Waveform measurements ....................................................................................................... 5-72
Waveform discrete readings.................................................................................................... 5-73
Waveform average readings ................................................................................................... 5-73
Measurement timing ................................................................................................................ 5-74
Clarius .......................................................................................................................... 6-1
Get started with Clarius ........................................................................................................ 6-1
Clarius interface ........................................................................................................................ 6-2
Additional Clarius
+
applications ................................................................................................. 6-9
Set up a simple project ......................................................................................................... 6-9
Select project components ...................................................................................................... 6-10
Add a device and test to the project ........................................................................................ 6-11
Rearrange items in the project tree ......................................................................................... 6-12
Delete objects in the project tree ............................................................................................. 6-12
Configure a simple test ...................................................................................................... 6-13