1

GATE ECE 2022

MCQ (Single Correct Answer)

+1

-0.33

In a non-degenerate bulk semiconductor with electron density n = 10^{16} cm^{$$-$$3}, the value of E_{C} $$-$$ E_{Fn} = 200 meV, where E_{C} and E_{Fn} denote the bottom of the conduction band energy and electron Fermi level energy, respectively. Assume thermal voltage as 26 meV and the intrinsic carrier concentration is 10^{10} cm^{$$-$$3}. For n = 0.5 $$\times$$ 10^{16} cm^{$$-$$3}, the closest approximation of the value of (E_{C} $$-$$ E_{Fn}), among the given options is _________.

2

GATE ECE 2022

MCQ (More than One Correct Answer)

+1

-0.33

Select the CORRECT statements regarding semiconductor devices

3

GATE ECE 2017 Set 1

MCQ (Single Correct Answer)

+1

-0.3

A bar of Gallium Arsenide (GaAs) is doped with Silicon such that the Silicon atoms occupy
Gallium and Arsenic sites in the GaAs crystal. Which one of the following statement is true?

4

GATE ECE 2016 Set 1

MCQ (Single Correct Answer)

+1

-0.3

A small percentage of impurity is added to an intrinsic semiconductor at 300 K. Which one of the
following statements is true for the energy band diagram shown in the following figure?

Questions Asked from Semiconductor Physics (Marks 1)

Number in Brackets after Paper Indicates No. of Questions

GATE ECE 2022 (3)
GATE ECE 2017 Set 1 (1)
GATE ECE 2016 Set 1 (1)
GATE ECE 2015 Set 2 (2)
GATE ECE 2015 Set 1 (1)
GATE ECE 2014 Set 4 (2)
GATE ECE 2014 Set 3 (2)
GATE ECE 2011 (1)
GATE ECE 2008 (1)
GATE ECE 2006 (2)
GATE ECE 2005 (3)
GATE ECE 2004 (1)
GATE ECE 2003 (1)
GATE ECE 2002 (2)
GATE ECE 1997 (1)
GATE ECE 1995 (3)
GATE ECE 1994 (2)

GATE ECE Subjects

Signals and Systems

Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous

Network Theory

Control Systems

Digital Circuits

General Aptitude

Electronic Devices and VLSI

Analog Circuits

Engineering Mathematics

Microprocessors

Communications

Electromagnetics