题目内容

The effective mobility is independent from oxide thickness. ()

查看答案
更多问题

The two reasons why the mobility is not any more a constant in the real devices are _____

A. The variation with gate voltage
B. The variation with drain-source voltage
C. The limitation from the velocity saturation
D. The limitation from the operation frequency

The saturation velocity will decrease somewhat with applied VG because of the ________ and __________

A. lateral electric field
B. vertical electric field
C. surface scattering
D. lattice scattering

Compared to that in long-channel devices, velocity saturation will be __________in shorter channel devices.

A. less prominent
B. the same
C. more prominent
D. disappeared

In the long-channel device, the channel length Lis much longer than the mean distance between collisions l, so that an average carrier drift velocity exists. If the channel length is reduced so that L < l, then a large fraction of carriers could travel from the source to the drain without experiencing a scattering event. This motion of carriers is called ______ .

答案查题题库