VLSI Interview Questions
Questions Answers Views Company eMail

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

645

what is a sequential circuit?

584

what is the use of defpararm?

701

Explain how binary number can give a signal or convert into a digital signal?

641

why is the number of gate inputs to CMOS gates usually limited to four?

762

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

653

what is SCR (Silicon Controlled Rectifier)?

612

Explain why present VLSI circuits use MOSFETs instead of BJTs?

629

what is multiplexer?

647

In Verilog code what does “timescale 1 ns/ 1 ps” signifies?

666

Explain how Verilog is different to normal programming language?

661

Explain what is Verilog?

615

what is Slack?

680

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

732

Explain how logical gates are controlled by Boolean logic?

612


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Un-Answered Questions { VLSI }

Explain Cross section of a PMOS transistor?

728


If an/ap = 0.5, an/ap = 1, an/ap = 3, for 3 inverters draw the transfer characteristics?

1995


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

2328


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

562


Differences between IRSIM and SPICE?

4918






Explain various adders and difference between them?

665


Implement F= not (AB+CD) using CMOS gates?

3490


Explain Cross section of an NMOS transistor?

543


Explain what is the use of defpararm?

631


Explain what is scr (silicon controlled rectifier)?

600


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

645


What are the ways to Optimize the Performance of a Difference Amplifier?

1788


Implement a function with both ratioes and domino logic and merits and demerits of each logic?

697


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

2499


Explain the operation of a 6T-SRAM cell?

4041