Explore topic-wise MCQs in Vlsi.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Vlsi knowledge and support exam preparation. Choose a topic below to get started.

1.

The scaling factor of Gate delay in Constant field model is:

A. 1/α2
B. 1
C. 1/α
D. β/α
Answer» D. β/α
Discussion
2.

Channel resistance is scaled as:

A. 1/α2
B. 1/β
C. 1/α
D. 1
Answer» E.
Discussion
3.

Carrier density is measured as:

A. Average charge per unit area in the channel in ‘OFF’ state
B. Average charge per unit area in the channel in ‘ON’state
C. Average charge per unit area in the gate oxide
D. None of the mentioned
Answer» C. Average charge per unit area in the gate oxide
Discussion
4.

The carrier density in channel in constant voltage model is scaled as:

A. 1/β
B. 1
C. β
D. All of the mentioned
Answer» E.
Discussion
5.

The parasitic Capacitance has the scaling factor:

A. Equal to gate capacitance
B. 1/α2
C. 1/α
D. 1/β
Answer» D. 1/β
Discussion
6.

In Constant voltage model the gate capacitance is scaled by a factor of:

A. 1/β2
B. 1/α2
C. β/α2
D. α/β2
Answer» C. β/α2
Discussion
7.

The scaling factor of Gate capacitance is:

A. 1/β
B. 1/α
C. β/α2
D. α/β2
Answer» D. α/β2
Discussion
8.

The scaling factor of Gate Capacitance per unit area is:

A. 1/β
B. 1/α
C. β
D. α
Answer» D. α
Discussion
9.

The scaling factor of gate area in constant voltage model is:

A. 1/α2
B. 1/β2
C. 1
D. All of the mentioned
Answer» B. 1/β2
Discussion
10.

The third type of scaling model is:

A. λ-based model
B. µm based model
C. combined voltage and dimension model
D. combined voltage and electric field model
Answer» D. combined voltage and electric field model
Discussion
11.

The scaling factor of length and width of the channel are:

A. 1, 1
B. 1/α, 1/β
C. 1/α, 1/α
D. 1/β, 1/β
Answer» D. 1/β, 1/β
Discussion
12.

The scaling factor for the supply voltage VDD is:

A. 1
B. 0
C. 1/α
D. 1/β
Answer» E.
Discussion
13.

In Constant Voltage model, the scaling factors β and α are related as:

A. β = α
B. α = 2β
C. β = 1
D. β = α = 1
Answer» D. β = α = 1
Discussion
14.

For the constant field model, the scaling factors β and α are related as:

A. β = α
B. α = 2β
C. β = 1
D. β = α = 0
Answer» B. α = 2β
Discussion
15.

The basic figures of merit for MOS devices are

A. Minimum Feature size
B. Low Power dissipation
C. Maximum operational frequency
D. All of the mentioned
Answer» E.
Discussion