Metal semiconductor contact
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Metal semiconductor contact ANCHIT BISWAS TECHNO INDIA ,SALTLAKE
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Transcript of Metal semiconductor contact
Metal semiconductor contact
ANCHIT BISWAS
TECHNO INDIA ,SALTLAKE
Metal-Semiconductor Interfaces
Rectifying (Schottky Junction)
Non-Rectifying (Ohmic Contacts)
Metal-Semiconductor Interfaces
Rectifying (Schottky Junction)
Non-Rectifying (Ohmic Contacts)
Metal-Semiconductor Interfaces
Rectifying (Schottky Junction)
Non-Rectifying (Ohmic Contacts)
Metal-Semiconductor Interfaces
How Schottky Junction Works ?
Energy band diagram of an isolated metal adjacent to an isolated n-type semiconductor
n type
How Schottky Junction Works ?
Energy band diagram of an isolated metal adjacent to an isolated n-typesemiconductor
Energy band diagram of a metal-n semiconductor contact in thermal equilibrium
n type Metal n type semiconductor
How Schottky Junction Works ?
Energy band diagram of an isolated metal adjacent to an isolated n-typesemiconductor
Energy band diagram of a metal-n semiconductor contact in thermal equilibrium
n type
How Schottky Junction Works ?
Under forward bias condition
n type
Thermionic -emission
How Schottky Junction Work ?
Under forward bias condition Under reverse bias condition
n type n type
Thermionic -emission
Near Ohmic Junction
Advantages of Schottky Diode
Low turn on voltage
Fast recovery time
Low junction capacitance
Applications of Schotty Diode
RF mixer and detector diode
solar cell applications
etc
How Ohmic Contact Works ?
Energy band diagram of an isolated metal adjacent to an isolated n-type semiconductor
n type
How Ohmic Contact Works ?
Energy band diagram of an isolated metal adjacent to an isolated n-type semiconductor
n type
Energy band diagram of a metal-n semiconductor contact in thermal equilibrium
How Ohmic Contact Works ?
Under forward bias condition
How Ohmic Contact Works ?
Under forward bias condition Under reverse bias conditon
Ohmic vs Schotty
