VLSI Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

VLSI Interview Questions

Questions Answers Views Company eMail

what is conductance and valence band?

1 6598

What is Fermi level?

5 10998

How does Vbe and Ic change with temperature?

Qualcomm,

3518

If the substrate doping concentration increase, or temperature increases, how will Vt change? it increase or decrease?

1 4674

what is Channel length modulation?

Intel,

2 7329

what is the doping?

5 8770

How does a pn junction works?

Wipro,

2 7725

What is the depletion region?

1 5717

Tell me the parameters as many as possible you know that used to character an amplifier?

1 3629

What are the two types of noise of MOSFET, how to eliminate them?(Thermal and Flicker).

Analog Devices,

4 14958

What is the build-in potential?

Wipro,

1 3330

Tell me how MOSFET works.

2428

For a 0.18um and 0.8um technology MOSFET, which has a higher cutoff frequency?

2 11849

How does a Bandgap Voltage reference work?

3907

What is the ideal input and output resistance of a current source?

3015

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Un-Answered Questions { VLSI }

what is the use of defpararm?

1150

Implement a 2 I/P and gate using Tran gates?

4010

Draw the Cross Section of an Inverter? Clearly show all the connections between M1 and poly, M1 and diffusion layers etc?

3380

what are three regions of operation of MOSFET and how are they used?

1242

Explain the operation of a 6T-SRAM cell?

4513

Draw Vds-Ids curve for a MOSFET. Now, show how this curve changes with increasing Vgs.

1118

What types of I/O have you designed? What were their size? Speed? Configuration? Voltage requirements?

2442

Explain the Various steps in Synthesis?

3281

Draw the Layout of an Inverter?

2507

What is the function of enhancement mode transistor?

1117

Are you familiar with the term snooping?

3526

How binary number can give a signal or convert into a digital signal?

1246

What is look up table in vlsi?

986

Explain how MOSFET works?

3237

What are the different ways in which antenna violation can be prevented?

1125

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