CHAPTER 14

Semiconductor

CHAPTER AT A GLANCE

Semiconductor Electronics; Materials, Devices and Simple Circuits

Among the various states of matter, electrical conductivity in solids is due to both electrons and holes and this can be understood by the help of energy band theory.

Energy Band Theory

  1. According to Bohr’s theory, each and every shell and subshell of atoms contains a discrete amount of energy. When atoms are brought together, electrons of outermost shell interact each other. This interaction change the energy level, which give rise to energy band theory.
  2. Some important terms used in energy band theory are shown in given table.
    ch14_tbl0.png

Classification ...

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