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

VLSI Interview Questions

Questions Answers Views Company eMail

Tell me how BJT works.

2 8064

what is Early effects and their physical origin.

1 4614

what is short Channel effect.

2 8014

How about voltage source?

2271

How to improve these parameters? (Cascode topology, use long channel transistors)

2187

Explain how MOSFET works?

3236

Explain the various MOSFET Capacitances & their significance ?

Infosys,

1 7295

Explain the sizing of the inverter?

Intel,

1 8539

How do you size NMOS and PMOS transistors to increase the threshold voltage?

Infosys,

3035

What is Noise Margin? Explain the procedure to determine Noise Margin?

Amkor, Cisco, Infosys, Intel,

4 34656

Give the expression for CMOS switching power dissipation?

Infosys,

2 12370

what is body effect?

1 6382

Describe the various effects of scaling?

Infosys,

4794

What happens to delay if you increase load capacitance?

Infosys,

3 19118

What are the different limitations in increasing the power supply to reduce delay?

2 8877

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Un-Answered Questions { VLSI }

In vlsi chip 1000s of transistors are dropped, specifically categorized. Which method is used to achieve this & how it is done practically?

1020

Explain how Verilog is different to normal programming language?

1277

Explain the operation considering a two processor computer system with a cache for each processor.

2850

what is the use of defpararm?

1150

How about voltage source?

2271

Draw a 6-T SRAM Cell and explain the Read and Write operations

1289

Explain the working of Insights of an inverter ?

1268

In the design of a large inverter, why do we prefer to connect small transistors in parallel (thus increasing effective width) rather than lay out one transistor with large width?

1194

What are the different design techniques required to create a layout for digital circuits?

1043

what is multiplexer?

1164

what is a sequential circuit?

1170

What are the steps involved in designing an optimal pad ring?

1172

What is the critical path in a SRAM?

3197

What is look up table in vlsi?

986

Explain the Working of a 2-stage OPAMP?

1198

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