Patent ID: 6051986
Filing Date: 2000-04-18
Classification: G01R

Abstract:
A method of testing a transistor, which is used to test for existence of a kink effect, comprising the steps of:providing a gate voltage Vg to said transistor to obtain a source/drain current Ids;differentiating said obtained source/drain current Ids by said gate voltage Vg to obtain a plot of d.sup.2 Ids/dVg.sup.2 versus Vg; anddetermining the existence of the kink effect, wherein if said plot of d.sup.2 Ids/dVq.sup.2 versus Vg has one global minimum, no kink effect exists, and if said plot of d.sup.2 Ids/dVg.sup.2 versus Vg has more than one global minimum, said transistor has a kink effect.