My speciality. Овчинникова Т.Е - 27 стр.

B. Certainly, I can. They are germanium and silicon.
A. Oh, I’ve heard of intrinsic semiconductors, but I have no idea what that means.
B. You see, an intrinsic semiconductor is the one in which some hole and electron
pairs are created by thermal energy, even though there are no impurities in it. A.
Will you be so kind as to tell me now what an extrinsic
semiconductor is?
B. Of course. Extrinsic properties are those of a semiconductor modified by the
impurities within the crystal. A. And what is a transistor? B. It is a device.
A. In what way may the current be carried in transistors and semiconductors?
В. It may be carried by two distinctly different means — conduction by electrons
and conduction by holes.
A. But what causes in some cases conduction in the commonly used semiconductors
such as germanium and silicon?
B- It is caused by excess electrons and excess holes.
A. What is of basic concern in transistors?
B. The semiconductor material is.
A. Are there any characteristic features of the transistor?
B. Certainly, there are. They are: its small size, and amazingly small power
consumption.
A. And what's about the upper frequency limit of the transistors?
B. Oh, it is lower than that of electron tubes.

      2.9 Part 9

      2.9.1 Remember pronunciation of the following words

emphasize, influence, bias, depletion, carrier, diffusion, forward, therefore, roughly,
right, capture.

      2.9.2 Read the words, pay attention to stress shift

local — locality; filament — filamentary; act — activity; operate — operation;
sensitive — sensitivity.

      2.9.3 Find Russian equivalents to the English words

conductance                         смещенный точечный контакт
filamentary transistor              диффузные шлейфы
reverse biased /p-n junction        неосновные носители
blocking effect                     истощение
depletion                           инжекция
diffusion tails                     прямое направление
injection                           обратный ток
minority carriers                   проводимость
reverse current                     нитевидный транзистор
forward biased point contact        обратно-смещенный p-n пeреход
forward direction                   блокирующий эффект