B.TechSemester 52023-24Advance Semiconductor DeviceKEC056

Advance Semiconductor Device (KEC056) - AKTU Question Paper 2023-24

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU Advance Semiconductor Device Previous Year Question Paper for B.Tech Semester 5, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 5
Session:2023-24
University:AKTU / UPTU

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Questions Asked in 2023-24

Advance Semiconductor Device (KEC056) — complete question paper · 100 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f .
  • a
    What is Non-uniform Doping? 2 1
  • b
    Explain Depletion Region 2 1
  • c
    Enumerate the special features of MESFETs. 2 2
  • d
    What is the pinch-off voltage in a JFET? 2 2
  • e
    What is meant by resonant tunneling? 2 3
  • f
    What do you mean by tunneling? 2 3
  • g
    Write the differences between Transistor and Thyristor. 2 4
  • h
    List the advantages of Laser devices 2 4 i. Define Chemical Sensors. 2 5 j. What is the photodiode? 2 5
Section BAttempt any three o f t h e f o l l o w i n g :
  • a
    Discuss the operation of SCR with latching and holding current in detail. Also discuss the operation, application and symbol of tunnel and zener diode
  • b
    Discuss the operation of N channel JFET with the condition of p inch-off. Deduce the result of transconductance of this amplifier
  • c
    Draw and explain the working principle of TRAPATT diode. 10 3
  • d
    Explain Radioactive Transitions. What is the difference between power devices and conventional semiconductor devices?
  • e
    Explain the working principle of photo detector. And also expla in the solar cell with input output characteristics
Section CAttempt any one p a r t o f t h e f o l l o w i n g :
  • a
    Explain n-type and p-type semiconductor with example. Define an d derive the expression for minority carrier life time
  • b
    Derive the expression for Conductivity and Mobility and the exp ression for Diffusion of carriers in semiconductors
  • a
    Explain Basic Structures and the Operating Principle with I-V C haracteristics of MOSFET
  • b
    Define and derive the expression for the threshold voltage for MOS transistor. What are the factors which affect it?
  • a
    Explain IMPATT Diode and it’s working. What is Transferred electron Mechanism? 10 3
  • b
    What is tunneling phenomenon? Explain the V-I characteristics o f Tunnel diode. Discuss the semiconductor materia l required for its fabrication . How do they differ from conventional semiconductor?
  • a
    What do you understand by thyristors? Draw and explain the V-I characteristics of a thyristor
  • b
    What is Light emitting diode? Explain its working principle. Wh at are the materials used in LED? Explain its uses
  • a
    Discuss the phenomenon of photoconductivity in detail with its examples and applications
  • b
    Explain the principle of operation, storage, and transfer of ch arge in basic charge coupled device (CCD)

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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