I got out the book by Toby Boydell related to technology
did a search and found that Purdue has Engineering Technology
Tested a MOSFET today by changing Vd=Vd(t)

Wrote a fft a few years ago
starting/finishing with a x point

attack with Tim Adams and Murali Venugopalan
retreat with Allan Steinhardt and Dennis Deppe

I looked over the subthreshhold current measurements
and they were all over the place
I redid the measurement using DC Power supply
but am uncertain about the current constant A
I= A exp(qVgs/kt)