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Basics

The document discusses solid state electronic devices and semiconductors. It covers topics like crystal properties and growth of semiconductors, lattice structures, and energy bands in semiconductors. Transport of charge through metals and semiconductors depends on the arrangement of atoms in solids.

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Roshan Raju
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39 views9 pages

Basics

The document discusses solid state electronic devices and semiconductors. It covers topics like crystal properties and growth of semiconductors, lattice structures, and energy bands in semiconductors. Transport of charge through metals and semiconductors depends on the arrangement of atoms in solids.

Uploaded by

Roshan Raju
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as ODP, PDF, TXT or read online on Scribd
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Solid State Electronic Devices

● Ben Streetman, Sanjay Banerjee - Solid State


Electronic Devices
Crystal Properties and Growth of
Semiconductors
electrical behavior of solids

transport of charge through a metal or a semiconductor depends not only on the properties of the electron but also on the arrangement of atoms in the solid

Semiconductors have electrical conductivities intermediate between metals and insulators

Conductivity of these materials can be varied over orders of magnitude by changes in temperature, optical excitation, and impurity content

One of the most important characteristics of a semiconductor, which distinguishes it from metals and insulators, is its energy band gap
● Lattice
periodicity in a crystal is defined in terms of a symmetric array of points in space called the lattice

add atoms at each lattice point in an arrangement called a basis

one atom or a group of atoms having the same spatial arrangement, to get a crystal

the lattice contains a volume or cell that represents the entire lattice
'''
the total electronic configuration for Si (Z = 14) in the ground state is

Ls22s22p63s23p2

electrons in an outer n = 3 orbit


Si has a closed Ne configuration (see Table 2-2) plus four
(3s23p2).These are the four valence electrons

of Si; two valence electrons are in an 5 state and two are in ap state.
Energy Bands

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