Hi all,

I am looking for measurement kit/device for measuring the characteristic of
a fabricated transistor. I wonder how people do the measurements. For
example, dI/dV vs Vg, Ids vs Vg measurements. Is there any device for taking
these? Or do we need to calculate the derivative by ourselves after taking
the I-V measurement? Can you suggest me a model and brand for the certain
measurement device?

Thank you so much first.

Hoyin