Physics > Semi-conductor Devices and Electronics > 1.0 Introduction
Semi-conductor Devices and Electronics
1.0 Introduction
1.1 Classification of solids on the basis of their conductivity
1.2 Band theory of solids
1.3 Classification of solids on the basis of band theory
2.0 Types of semiconductor
3.0 Mass action law
4.0 Electrical conductivity in semiconductor
5.0 $p-n$ junction
5.1 Depletion region
5.2 Forward biasing of a $p-n$ junction
5.3 Reverse biasing of a $p-n$ junction
6.0 Breakdown voltage
7.0 $I-V$ characteristics of a $p-n$ junction
8.0 Rectifier
8.1 Half wave rectifier
8.2 Full wave rectifier
8.3 Ripple frequency
8.4 Ripple factor
8.5 Ripple efficiency $\left( \eta \right)$
8.6 Form factor
9.0 Light emitting diode (LED)
10.0 Zener diode
11.0 Transistor
12.0 Boolean identities
13.0 Logic gates
14.0 De Morgan's theorem
1.1 Classification of solids on the basis of their conductivity
1.2 Band theory of solids
1.3 Classification of solids on the basis of band theory
5.2 Forward biasing of a $p-n$ junction
5.3 Reverse biasing of a $p-n$ junction
8.2 Full wave rectifier
8.3 Ripple frequency
8.4 Ripple factor
8.5 Ripple efficiency $\left( \eta \right)$
8.6 Form factor
A. Metals
Metals are those solid which have high conductivity and very low resistivity.
The value of conductivity for metals lies in between $10^2$ to ${10^8}\;S{m^{ - 1}}$.
Also, the value of resistivity for metals lies in between ${10^{ - 8}}$ to ${10^{ - 2}}\;\Omega - m$.
B. Insulators
Insulators are those solid which have low conductivity and high resistivity.
The value of conductivity for insulators is less than ${10^{ - 8}}\;S{m^{ - 1}}$.
Also, the value of resistivity for insulators is more than ${10^8}\;\Omega - m$.
C. Semiconductors
Semiconductors are those solid which have conductivity and resistivity intermediate to metals and insulators.
The value of conductivity for semiconductors lies in between ${10^{ - 5}}$ to ${10^0}\;S{m^{ - 1}}$.
Also, the value of resistivity for semiconductors lies in between ${10^0}$ to ${10^5}\;\Omega - m$.
Semiconductors are those solid which have conductivity and resistivity intermediate to metals and insulators.
The value of conductivity for semiconductors lies in between ${10^{ - 5}}$ to ${10^0}\;S{m^{ - 1}}$.
Also, the value of resistivity for semiconductors lies in between ${10^0}$ to ${10^5}\;\Omega - m$.
