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WorksheetsVLSI-2
Total questions: 16
Worksheet time: 10mins
Which model is used for scaling?
constant electric scaling
constant voltage scaling
constant electric and voltage scaling
constant current model
α is used for scaling
(a)
For constant voltage model,
α = β
α = 1
α = 1/β
β = 1
For constant electric field model,
β = α
α = 1
α = 1/β
β = 1
Gate area is scaled by
α
1/α
1/α2
α2
Parasitic capacitance is Scaled by
β
1/β
α
1/α
As the channel length is reduced in a MOS transistor, depletion region width must be
(a)
Regularity is the ratio of
total transistors in the chip to total transistors that must be designed in detail
total transistors that must be designed in detail to total transistors in chip
total transistors to total components
total charge storage components to charge dissipating components
Good design system has regularity in the range of
(a)
The third type of scaling model is
λ-based model
µm based model
combined voltage and dimension model
combined voltage and electric field model
In the graph, the regions marked as A,B,C are
A : Saturation, B : Linear, C : Cut-off
A :Cut-off, B : Linear, C : Saturation
A : Linear, B : Saturation, C : Cut-off
None of the mentioned
Define Scaling
Which color is used for n-diffusion?
(a)
Which color is used for buried contact
(a)
How is nMOS depletion mode transistor represented?
Write any two Advantages of scaling
