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1
GATE ECE 2008
MCQ (Single Correct Answer)
+1
-0.3
Which of the following is true?
A
A silicon wafer heavily doped with boron is a p+ substrate
B
A silicon wafer lightly doped with boron is a p+ substrate
C
A silicon wafer heavily doped with arsenic is a p+ substrate
D
A silicon wafer lightly doped with arsenic is a p+ substrate
2
GATE ECE 2006
MCQ (Single Correct Answer)
+1
-0.3
Under low level injection assumption, the injected minority carrier current for an extrinsic semiconductor is essentially the
A
diffusion current
B
drift current
C
recombination current
D
induced current
3
GATE ECE 2006
MCQ (Single Correct Answer)
+1
-0.3
The concentration of minority carriers in an extrinsic semiconductor under equilibrium is:
A
directly proportional to the doping concentration
B
inversely proportional to the doping concentration
C
directly proportional to the intrinsic concentration
D
inversely proportional to the intrinsic concentration
4
GATE ECE 2005
MCQ (Single Correct Answer)
+1
-0.3
The primary reason for the widespread use of Silicon in semiconductor device technology is
A
abundance of Silicon on the surface of the Earth.
B
larger bandgap of Silicon in comparison to Germanium.
C
favorable properties of Silicon-dioxide (SiO2)
D
lower melting point
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GATE ECE Subjects
Signals and Systems
Representation of Continuous Time Signal Fourier Series Discrete Time Signal Fourier Series Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Transmission of Signal Through Continuous Time LTI Systems Discrete Time Linear Time Invariant Systems Sampling Continuous Time Signal Laplace Transform Discrete Fourier Transform and Fast Fourier Transform Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Fourier Transform
Network Theory
State Equations For Networks Network Elements Network Theorems Two Port Networks Transient Response Sinusoidal Steady State Response Network Graphs Miscellaneous
Control Systems
Signal Flow Graph and Block Diagram Time Response Analysis Compensators Basic of Control Systems Frequency Response Analysis Stability Root Locus Diagram State Space Analysis
Digital Circuits
Number System and Code Convertions Boolean Algebra Logic Gates Combinational Circuits Sequential Circuits Semiconductor Memories Logic Families Analog to Digital and Digital to Analog Converters
General Aptitude
Numerical Ability Logical Reasoning Verbal Ability
Electronic Devices and VLSI
PN Junction Semiconductor Physics IC Basics and MOSFET BJT and FET
Analog Circuits
Diodes Bipolar Junction Transistor Frequency Response FET and MOSFET Oscillators Operational Amplifier Feedback Amplifier Power Amplifier 555 Timer
Engineering Mathematics
Linear Algebra Calculus Vector Calculus Complex Variable Probability and Statistics Differential Equations Numerical Methods Transform Theory
Microprocessors
Pin Details of 8085 and Interfacing with 8085 Instruction Set and Programming with 8085
Communications
Analog Communication Systems Digital Communication Systems Random Signals and Noise Fundamentals of Information Theory Noise In Digital Communication
Electromagnetics
Maxwell Equations Transmission Lines Uniform Plane Waves Waveguides Antennas Miscellaneous
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