1
GATE ECE 2013
MCQ (Single Correct Answer)
+1
-0.3
In a forward biased P-N junction diode, the sequence of events that best describes the mechanism of current flow is
A
injection, and subsequent diffusion and recombination of minority carriers
B
injection, and subsequent drift and generation of minority carriers
C
extraction, and subsequent diffusion and generation of minority carriers
D
extraction, and subsequent drift and recombination of minority carriers
2
GATE ECE 2013
MCQ (Single Correct Answer)
+1
-0.3
In IC technology, dry oxidation (using dry oxygen) as compared to wet oxidation (using steam or water vapor) produces
A
superior quality oxide with a higher growth rate
B
inferior quality oxide with a higher growth rate
C
inferior quality oxide with a lower growth rate
D
superior quality oxide with a lower growth rate
3
GATE ECE 2013
MCQ (Single Correct Answer)
+1
-0.3
In a MOSFET operating in the saturation region, the channel length modulation effect causes
A
an increase in the gate-source capacitance
B
a decrease in the Transconductance
C
a decrease in the unity-gain cutoff frequency
D
a decrease in the output resistance
4
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
The small-signal resistance (i.e., $${{d{V_B}} \over {d{I_D}}}$$ ) in $$k\Omega $$ offered by the n-channel MOSFET M shown in the figure below, at bias point of VB = 2V is (device data for M: device transconductance parameter

kN = $${\mu _n}{C_{ox}^{'}}$$ (W/L)= 40$$\mu {\rm A}/{V^2},$$ threshold voltage VTN=1V, and neglect body effect and channel length modulation effects)

GATE ECE 2013 Electronic Devices and VLSI - IC Basics and MOSFET Question 26 English
A
12.5
B
25
C
50
D
100