Semiconductor Devices
Contents
PN Junction Diode: Construction and operation
with characteristics
Rectifiers: Half-wave and Full-wave.
Zener Diode: Construction and operation with
characteristics
Zener Regulator.
BJT :Configuration –Characteristics –Amplifier
Power Electronic Devices: SCR & MOSFET.
,Electronic Materials
• The goal of electronic materials is to generate and
control the flow of an electrical current.
• Electronic materials include:
1. Conductors: have low resistance which allows electrical
current flow
2. Insulators: have high resistance which suppresses electrical
current flow
3. Semiconductors: can allow or suppress electrical current
flow
,The semiconductors fall somewhere midway between
conductors and insulators.
, Scientific Principle of Conduction
The conduction band is the band of orbitals that are
high in energy and are generally empty. It is the band
that accepts the electrons from the valence band.
The “leap” required
for electrons from
the Valence Band to
enter the
Conduction Band.
The highest occupied energy band is called the valence
band. Most electrons remain bound to the atoms in this
band.
Contents
PN Junction Diode: Construction and operation
with characteristics
Rectifiers: Half-wave and Full-wave.
Zener Diode: Construction and operation with
characteristics
Zener Regulator.
BJT :Configuration –Characteristics –Amplifier
Power Electronic Devices: SCR & MOSFET.
,Electronic Materials
• The goal of electronic materials is to generate and
control the flow of an electrical current.
• Electronic materials include:
1. Conductors: have low resistance which allows electrical
current flow
2. Insulators: have high resistance which suppresses electrical
current flow
3. Semiconductors: can allow or suppress electrical current
flow
,The semiconductors fall somewhere midway between
conductors and insulators.
, Scientific Principle of Conduction
The conduction band is the band of orbitals that are
high in energy and are generally empty. It is the band
that accepts the electrons from the valence band.
The “leap” required
for electrons from
the Valence Band to
enter the
Conduction Band.
The highest occupied energy band is called the valence
band. Most electrons remain bound to the atoms in this
band.
