Nonuniform threshold voltage instabilities in p-channel silicon-gate m.o.s. transistors
To account for the changes in the Cgs/Vgs and Ids/Vgs characteristics of silicon-gate m.o.s. transistors after a period of b.t stress, a theoretical model is proposed in which charge trapped at the Si–SiO2 interface is distributed nonuniformly along the length of the channel.