VLSI Interview Questions
Questions Answers Views Company eMail

6-T XOR gate?

Intel,

4021

Differences between blocking and Non-blocking statements in Verilog?

Intel,

5 20084

Differences between Signals and Variables in VHDL? If the same code is written using Signals and Variables what does it synthesize to?

IIT, Intel,

1 20232

Differences between functions and Procedures in VHDL?

Intel,

5 53894

What is component binding?

Intel,

2 5688

What is polymorphism? (C++)

Intel,

2 5577

What is hot electron effect?

Intel,

3 12578

Define threshold voltage?

College School Exams Tests, Intel, JHG, Wipro,

32 130287

Factors affecting Power Consumption on a chip?

Intel,

7 16234

Explain Clock Skew?

Intel, nvidia,

6 20488

Why do we use a Clock tree?

Intel,

3 12824

Explain the various Capacitances associated with a transistor and which one of them is the most prominent?

Intel,

2 7673

Explain the Various steps in Synthesis?

Intel,

3070

Explain ASIC Design Flow?

Intel, JK Associates, Mind Tree,

2 14889

Explain Custom Design Flow?

Intel,

2 6600


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Un-Answered Questions { VLSI }

Draw the stick diagram of a NOR gate. Optimize it

1011


What are the steps required to solve setup and hold violations in vlsi?

864


Explain CMOS Inverter transfer characteristics?

3688


What is the main function of metastability in vsdl?

836


Explain why present VLSI circuits use MOSFETs instead of BJTs?

927


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

2809


what is the use of defpararm?

948


What work have you done on full chip Clock and Power distribution? What process technology and budgets were used?

2639


Mention what are the two types of procedural blocks in Verilog?

1018


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

1968


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

2222


Give the logic expression for an AOI gate. Draw its transistor level equivalent. Draw its stick diagram

1144


What is threshold voltage?

932


Explain the three regions of operation of a mosfet.

853


Explain the Charge Sharing problem while sampling data from a Bus?

2396