Solid State Electronic Devices, 7th Edition

7.7 Other Important Effects

The approach we have taken in analyzing the properties of transistors has involved a number of simplifying assumptions. Some of the assumptions must be modified in dealing with practical devices. In this section we investigate some common deviations from the basic theory and indicate situations in which each effect is important. Since the various effects discussed here involve modifications of the more straightforward theory, they are often labeled “secondary effects.” This does not imply that they are unimportant; in fact, the effects described in this section can dominate the conduction in transistors under certain conditions of device geometry and circuit application.

In this section we shall consider the effects ...