1

GATE ECE 2015 Set 1

Numerical

+2

-0

A MOSFET in saturation has a drain current of 1 mA for V

_{DS}=0.5V. If the channel length modulation coefficient is 0.05 V^{-1}, the output resistance (in k$$\Omega $$) of the MOSFET is______Your input ____

2

GATE ECE 2015 Set 1

MCQ (Single Correct Answer)

+2

-0.6

For the NMOSFET in the circuit shown, in the threshold voltage is V

_{th}, where V_{th}>0. The source voltage V_{ss}is varied from 0 to V_{DD}. Neglecting the channel length modulation, the drain current I_{D}as a function of V_{ss}is represented by3

GATE ECE 2014 Set 3

Numerical

+2

-0

The slope of the I

_{D}vs. V_{GS}curve of an n-channel MOSFET in linear region is 10^{-3}$${\Omega ^{ - 1}}$$ at V_{DS}= 0.1V. For the same device, neglecting channel length modulation, the slope of the $$\sqrt {{{\rm I}_D}} $$ vs. V_{GS}curve (in $$\sqrt A /V$$ ) under saturation region is approximately ______.Your input ____

4

GATE ECE 2014 Set 3

Numerical

+2

-0

An ideal MOS capacitor has boron doping concentration of 10

^{15}cm^{-3}in the substrate. When a gate voltage is applied, a depletion region of width 0.5 $$\mu m$$ is formed with a surface (channel) potential of 0.2V. Given that $${\varepsilon _0} = 80854 \times {10^{ - 14}}F/cm$$ and the relative permittivities of silicon and silicon dioxide are 12 and 4, respectively, the peak electric field (in V/ $$\mu m$$ ) in the oxide region is ______Your input ____

Questions Asked from IC Basics and MOSFET (Marks 2)

Number in Brackets after Paper Indicates No. of Questions

GATE ECE 2017 Set 1 (1)
GATE ECE 2017 Set 2 (3)
GATE ECE 2016 Set 2 (2)
GATE ECE 2016 Set 3 (3)
GATE ECE 2016 Set 1 (1)
GATE ECE 2015 Set 2 (1)
GATE ECE 2015 Set 3 (2)
GATE ECE 2015 Set 1 (2)
GATE ECE 2014 Set 3 (3)
GATE ECE 2014 Set 2 (2)
GATE ECE 2014 Set 1 (1)
GATE ECE 2013 (1)
GATE ECE 2012 (4)
GATE ECE 2009 (2)
GATE ECE 2008 (3)
GATE ECE 2007 (1)
GATE ECE 2006 (1)
GATE ECE 2004 (1)
GATE ECE 2003 (3)

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