VLSI Design And Testing MCQ Questions & Answers

VLSI Design And Testing MCQ Questions & Answers | ECE

Learn VLSI Design And Testing MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. VLSI Design And Testing MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-2 section-2

As source drain voltage increases, channel depth . . . . . . . . .

A) Increases B) Decreases C) Logarithmically increases D) Exponentially increases

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Answer & Solution

Answer: Option B

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The parasitic PNP transistor has the effect of . . . . . . . . carrier lifetime.

A) Increasing B) Decreasing C) Exponentially decreasing D) Exponentially increasing

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Answer & Solution

Answer: Option B

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What is the condition for saturation?

A) Vgs = Vds B) Vds = Vgs - Vt C) Vgs = Vds - Vt D) Vds > Vgs - Vt

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Answer & Solution

Answer: Option B

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The BJTs in the BICMOS circuit is in . . . . . . . . configuration.

A) Push-pull B) Totem pole C) Active high D) Active low

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Answer & Solution

Answer: Option B

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What is Piranha Solution?

A) It is a 3 : 1 to 5 : 1 mix of nitric acid and hydrogen peroxide that is used to develop the oxide layer on silicon substrate B) It is a 3 : 1 to 5 : 1 mix of sulphuric acid and hydrofluoric acid that is used to clean silicon wafers removing organic and metal contaminants or photo resist after metal patterning C) It is a 3 : 1 to 5 : 1 mix of sulphuric acid and hydrogen peroxide that is used to grow the oxide layer on the silicon D) It is a 3 : 1 to 5 : 1 mix of sulphuric acid and hydrogen peroxide that is used to clean wafers of organic and metal contaminants or photo resist after metal patterning

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Answer & Solution

Answer: Option D

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Threshold voltage is negative for . . . . . . . .

A) nMOS depletion B) nMOS enhancement C) pMOS depletion D) pMOS enhancement

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Answer & Solution

Answer: Option A

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. . . . . . . . is sputtered on the whole wafer.

A) Silicon B) Calcium C) Potassium D) Aluminium

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Answer & Solution

Answer: Option D

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What is the ratio of $$\frac{{Zp.u}}{{Zp.d}}?$$

A) $$\frac{1}{4}$$ B) $$\frac{4}{1}$$ C) $$\frac{1}{2}$$ D) $$\frac{2}{1}$$

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Answer & Solution

Answer: Option B

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In resistive region . . . . . . . .

A) Vds greater than (Vgs - Vt) B) Vds lesser than (Vgs - Vt) C) Vgs greater than (Vds - Vt) D) Vgs lesser than (Vds - Vt)

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Answer & Solution

Answer: Option B

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The n-well created for Bipolar Transistor in BiCMOS is used as . . . . . . . .

A) Substrate B) Collector C) Emitter D) None of the mentioned

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Answer & Solution

Answer: Option B

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