Question
In: Electrical Engineering
A2) i) What is the cause of the junction capacitance and diffusion capacitance of a pn...
A2)
i) What is the cause of the junction capacitance and diffusion capacitance of a pn junction? Under what condition the junction and diffusion capacitance of the pn junction will exist?
ii) Is the junction capacitance of a pn junction linear? How about the diffusion capacitance?
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Manojponduru answered 11 months agoRelated Solutions
Show that the diffusion current of a forward-conduction pn junction is a strong function of temperature.
Show that the diffusion current of a forward-conduction pn
junction is a strong function of temperature.
A Si pn diode has an equilibrium diffusion barrier of 0.7 V and an area capacitance...
A Si pn diode has an equilibrium diffusion barrier of 0.7 V and
an area capacitance of C2D = 4 nF/cm2 for a reverse bias voltage of
-4.3 V. What can you tell about the doping levels?
Question 5: pn junction (a) Explain the main physical principles underlying the operation of a pn-junction-based...
Question 5: pn junction
(a) Explain the main physical principles underlying the
operation of a pn-junction-based diode.
(b) Provide a rigorous derivation of the net current through the
pn-junction for both the forward and reverse bias. Explain and
justify every step in your derivation.
(c) For a fixed temperature, plot the net current as a function
of applied voltage.
Describe how a pn junction is formed
Describe how a pn junction is formed
A3) i) To double the width of a reverse-biased pn junction, should the external voltage be...
A3)
i) To double the width of a reverse-biased pn junction, should
the external voltage be doubled?
ii) To reduce the width of a reverse-biased pn junction,should
the external be reduced by half as well?
iii) What is the diffusion lengths of a pn junction?
iv) Show the width of a pn junction is a non linear function of
the voltage across the pn junction.
PN Junctions and breakdown 1. Draw and interpret energy band diagram for pn junction in equilibrium,...
PN Junctions and breakdown
1. Draw and interpret energy band diagram for pn junction in
equilibrium, forward, and reverse bias
2. Describe what physically happens (And why) when you put n-Si
in contact with p-Si (e.g., junction formation)
3. Calculate Vo, W, Wn, Wp
4. Describe how/why current flows in forward and reverse
bias.
5. Utilize law of junction to calculate the minority carrier
concentration just outside the depletion layer
6. Quantify the forward and reverse bias current in a...
PN Junctions and breakdown 1. Draw and interpret energy band diagram for pn junction in equilibrium,...
PN Junctions and breakdown
1. Draw and interpret energy band diagram for pn junction in
equilibrium, forward, and reverse bias
2. Describe what physically happens (And why) when you put n-Si
in contact with p-Si (e.g., junction formation)
3. Calculate Vo, W, Wn, Wp
4. Describe how/why current flows in forward and reverse
bias.
5. Utilize law of junction to calculate the minority carrier
concentration just outside the depletion layer
6. Quantify the forward and reverse bias current in a...
Describe and diagram in detail what happens when a pn-junction is formed. Include the band structure...
Describe and diagram in detail what happens when a pn-junction
is formed. Include the band structure in equalibrium using the
'capacitor' approximation and describe and indicate all currents in
the junction.
5.) describe and diagram in detail the behavior of the pn junction when it is forwarded...
5.) describe and diagram in detail the behavior of the pn
junction when it is forwarded biased. When it is reversed
biased.
6.) Describe how a reversed biased pn-junction is used as a
light detector.
Explain how a pn junction creates the appropriate conditions for absoring a photon and then keeping...
Explain how a pn junction creates the appropriate conditions for
absoring a photon and then keeping the electron-hole pair around
around long enough to be collected. (Explain the steps from
incoming photon to the end.)
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