Module 6
Low Current Measurement
6-2
In This Module
• Low-Current Measurement Challenges
• Calibration and Zero Cancel
• Effect of Cable Movement
• ASU for Ultra Low-Current Measurement
• Low-Current Subthreshold
• Trade-Off Speed Vs Accuracy
• Low-Current Gummel Plot
• Low-Current Gate Oxide Leakage
This module is primarily written for the B1500A installed with the HRSMU (high resolution SMU)
and covers sub pA measurement techniques. Course exercises are included which fully explore
speed vs. accuracy issues to the fA level.
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