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

VLSI Interview Questions

Questions Answers Views Company eMail

What is the difference between synchronous and asynchronous reset?

1090

What is the difference between nmos and pmos technologies?

1109

What is the function of enhancement mode transistor?

1112

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

1041

What is the purpose of having depletion mode device?

1039

What are the different measures that are required to achieve the design for better yield?

1217

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

1170

What is the difference between the mealy and moore state machine?

1114

What are the different classification of the timing control?

1112

What is the function of chain reordering?

1069

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

1014

What is look up table in vlsi?

983

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Un-Answered Questions { VLSI }

What are the steps involved in preventing the metastability?

1124

Given a layout, draw its transistor level circuit. (I was given a 3 input AND gate and a 2 input Multiplexer. You can expect any simple 2 or 3 input gates)

1200

What products have you designed which have entered high volume production?

2442

What happens if we use an Inverter instead of the Differential Sense Amplifier?

2999

Explain depletion region.

1031

How can you construct both PMOS and NMOS on a single substrate?

4982

Mention what are the different gates where Boolean logic are applicable?

1125

what is verilog?

1131

Basic Stuff related to Perl?

2814

Explain Cross section of an NMOS transistor?

1028

What transistor level design tools are you proficient with? What types of designs were they used on?

5066

Explain various adders and difference between them?

1207

Process technology? What package was used and how did you model the package/system? What parasitic effects were considered?

2329

How does Vbe and Ic change with temperature?

3514

What was your role in the silicon evaluation/product ramp? What tools did you use?

3727

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