VLSI Interview Questions
Questions Answers Views Company eMail

Explain depletion region.

605

Explain the three regions of operation of a mosfet.

616

Explain what is multiplexer?

614

Explain what is scr (silicon controlled rectifier)?

608

Explain what is slack?

633

Explain what is the use of defpararm?

643

Give the cross-sectional diagram of the cmos.

552

Give various factors on which threshold voltage depends.

743

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

679

How logical gates are controlled by boolean logic?

621

Mention what are three regions of operation of mosfet and how are they used?

577

What does it mean “the channel is pinched off”?

839

What is threshold voltage?

675

What is the difference between cmos and bipolar technologies?

562

Write a program to explain the comparator?

672


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Un-Answered Questions { VLSI }

Explain what is the use of defpararm?

643


Insights of a 4bit adder/Sub Circuit?

2837


What is threshold voltage?

675


What does the above code synthesize to?

2000


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

4562






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

575


Explain what is multiplexer?

614


Draw a transistor level two input NAND gate. Explain its sizing (a) considering Vth (b) for equal rise and fall times

1052


What are the Advantages and disadvantages of Mealy and Moore?

696


Explain Cross section of an NMOS transistor?

559


Give a big picture of the entire SRAM Layout showing your placements of SRAM Cells, Row Decoders, Column Decoders, Read Circuit, Write Circuit and Buffers

626


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

660


Explain the Various steps in Synthesis?

2818


How does Vbe and Ic change with temperature?

2945


What are the steps involved in preventing the metastability?

643