VLSI MOS Circuit Scaling MCQ Quiz – Objective Question with Answer for VLSI MOS Circuit Scaling

1. 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

All the mentioned are the basic figures of merit for MOS devices.

2. 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

In the Constant field model, β = α.

3. 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

In Constant Voltage model, β = 1.

4. The scaling factor for the supply voltage VDD is:

a) 1
b) 0
c) 1/α
d) 1/β

The supply voltage VDD as the scaling factor of 1/β.

5. The scaling factor of the length and width of the channel is:

a) 1, 1
b) 1/α, 1/β
c) 1/α, 1/α
d) 1/β, 1/β

The scaling factor of length is 1/α, and the scaling factor for width is 1/α.

6. 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

The third model is known as the combined voltage and dimensions model proposed by Bergmann in 1991.

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

a) 1/α2
b) 1/β2
c) 1
d) All of the mentioned

The gate area = L.W, therefore scaling factor = 1/α2.

8. The scaling factor of Gate Capacitance per unit area is:

a) 1/β
b) 1/α
c) β
d) α

Gate capacitance per unit area has the scaling factor of β.

9. The scaling factor of Gate capacitance is:

a) 1/β
b) 1/α
c) β/α2
d) α/β2

The scaling factor of Gate capacitance is β/α2.

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

a) 1/β2
b) 1/α2
c) β/α2
d) α/β2