PPT - PN Junction Diode Electrical Engineering (EE) Notes | EduRev

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Electrical Engineering (EE) : PPT - PN Junction Diode Electrical Engineering (EE) Notes | EduRev

 Page 2


    P type and N type semiconductors, taken 
separately are of very limited use.
  If we join a piece of P type material to a piece 
of N type material such that the crystal 
structure remains continuous at the boundary,,
….. A PN  JUNCTION is formed
Page 3


    P type and N type semiconductors, taken 
separately are of very limited use.
  If we join a piece of P type material to a piece 
of N type material such that the crystal 
structure remains continuous at the boundary,,
….. A PN  JUNCTION is formed
?
It can function as ….
           Rectifier ,
           Amplifier ,
           Switching 
           And other operations in electronic circuits.
Page 4


    P type and N type semiconductors, taken 
separately are of very limited use.
  If we join a piece of P type material to a piece 
of N type material such that the crystal 
structure remains continuous at the boundary,,
….. A PN  JUNCTION is formed
?
It can function as ….
           Rectifier ,
           Amplifier ,
           Switching 
           And other operations in electronic circuits.
?
A PN junction cannot be produced by simply  
pushing two pieces together or by welding 
etc…. Because it gives rise to discontinuities 
across the crystal structure.
?
Special fabrication techniques are adopted to 
form a P N junction
Page 5


    P type and N type semiconductors, taken 
separately are of very limited use.
  If we join a piece of P type material to a piece 
of N type material such that the crystal 
structure remains continuous at the boundary,,
….. A PN  JUNCTION is formed
?
It can function as ….
           Rectifier ,
           Amplifier ,
           Switching 
           And other operations in electronic circuits.
?
A PN junction cannot be produced by simply  
pushing two pieces together or by welding 
etc…. Because it gives rise to discontinuities 
across the crystal structure.
?
Special fabrication techniques are adopted to 
form a P N junction
What is a PN Junction?
  
A PN junction is a device formed by 
joining  p-type ( doped with B, Al) 
with n-type (doped with P, As, Sb) 
semiconductors  and separated by a thin 
junction is called PN Junction diode  or  
junction diode.
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