Types Of Semiconductor.
The first thing that comes to mind
when discussing electronics is semiconductors. One definition is enough to know
the importance of semiconductors.
The
branch of engineering in which the flow of electrons through vacuum tubes, gas
tubes and semiconductors are discussed or researched are called electronics.
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What is a semiconductor?
A semiconductor is a material whose conductivity is lower than that of a
conductor and higher than that of an insulator. That is, it is neither
conductive nor non-conductive. The resistance of a semiconductor varies from
0.5 ohms to 50 ohms. Examples: silicon, germanium, carbon, etc.
Semiconductor or semiconductor properties.
The resistivity of the semiconductor is between the conductor and the insulator.
Its last layer has four electrons.
Its
conductivity is lower than that of conductors and higher than that of
insulators.
The
current flow can be reduced or increased by mixing the required material of the
semiconductor.
Semiconductor or semiconductor types
There
are basically two types of semiconductors
• Authentic semiconductor.
• Adulterated mixed semiconductor.
There
are two types of adulterated semiconductors
• P-type semiconductor
• N-type semiconductor
What
is an intrinsic semiconductor?
Silicon
and germanium is called pure semiconductors. Pure semiconductors do not
contain any adulterants.
Extrinsic Semiconductor
An adulterated semiconductor is made by mixing an appropriate amount of any other
adulterated substance with a pure semiconductor. Many free electrons are
generated when semiconductor substances are mixed with triangular and quintile
elements like gallium, indium, etc.
What are P-type and N-type semiconductors?
P-type
semiconductor
An A P-type semiconductor is a type of semiconductor whose number of holes exceeds
the number of electrons.
N-type
semiconductor
Semiconductor
holes whose number is less than the number of electrons are called N-type
semiconductors.
What does PN junction mean?
A
junction formed when a P-type and an N-type semiconductor are connected
together is called a P-N junction.
Hint:
What are Majority Charge Carriers and Minority Charge Carriers?
Majority charge carrier
Adulterated
semiconductors are made by mixing doping with pure semiconductors. The greater
the number of free electrons and holes between them is called the majority
carrier.
In
the case of N-type semiconductors, the free electron, and in the case of P-type
semiconductors, the hole is the majority carrier.
Minority
charge carrier
We
know that adulterated semiconductors are made by mixing doping with pure
semiconductors. Both free electrons and holes exist between these adulterated
mixed semiconductors. These free electrons and holes that have a small amount
are called minority charge carriers.
What is doping?
Doping
is the process of making a semiconductor that produces free electrons or holes
by mixing adulterants into pure semiconductors.
Why is doping done?
Doping
can increase or decrease the current flow of any device.