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Analog Electronics
INTRODUCTION TO SEMICONDUCTORS
TYPES OF MATERIAL & their COMPARISON
TEMPERATURE EFFECT ON MATERIALS
ATOMIC STRUCTURE OF SEMICONDUCTORS
P-TYPE SEMICONDUCTOR
N-TYPE SEMICONDUCTOR
MASS ACTION LAW
DIODES
MAKING OF DIODE
DIFFERENT FORCES ACTING ON CHARGE CARRIERS
DEPLETION WIDTH VARIATION with DOPING
CONNECTING BOTH ENDS OF DIODE
FORWARD BIASING DIODE
TRANSISTOR

 

 

N-type semiconductor:

This type of semiconducting material is made by defusing impurity of pentavalent type of material in the pure form of semiconductor as shown below:

In the above example we have used Antimony as pentavalent impurity. We represent the n-tye semiconductors as

In the diagram above circled +ve are fixed ions and small –ve signs are the electrons which are the majority charges.

 

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