Class Exercise
Low Current Gummel Plot
You will notice that sub 10 fA measurements are possible
To Get Started:
Set the jumper leads for the bipolar transistor
Insert the device and perform a zero cancel offset
Get the GUMMEL setup in the Demo preset group
The following pages will lead you through the setup and measurement procedure for a low current
Gummel measurement. Single triaxial cable connections to the force lines of SMUs 2, 3, and 4 are
fine for this test. Kelvin triaxial cables are not necessary.
6-25
Module 6
Low Current Measurement