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

VLSI Interview Questions

Questions Answers Views Company eMail

What happens to delay if we include a resistance at the output of a CMOS circuit?

Infosys,

1 13522

Give the expression for calculating Delay in CMOS circuit?

Infosys,

1 7588

what is charge sharing?

Intel,

2371

Why don?t we use just one NMOS or PMOS transistor as a transmission gate?

Infosys,

2 16197

Explain the working of differential sense amplifier?

1 6539

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

Infosys,

3310

What?s the critical path in a SRAM?

Infosys, Intel, Texas,

2 11664

What happens if we delay the enabling of Clock signal?

2363

What?s the difference between Testing & Verification?

Infosys,

6 30580

How can you model a SRAM at RTL Level?

Infosys,

5727

what is Latch up?How to avoid Latch up?

3 24712

What happens if we delay the enabling of Clock signal?

4 7223

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

4723

Explain why & how a MOSFET works?

Infosys,

2 7109

Explain the various MOSFET Capacitances & their significance?

1 23437

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Un-Answered Questions { VLSI }

What is the function of enhancement mode transistor?

1112

What are the different ways in which antenna violation can be prevented?

1123

What are the main issues associated with multiprocessor caches and how might you solve them?

2221

Write a program to explain the comparator?

1145

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

1337

6-T XOR gate?

4240

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

2453

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

1014

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

2310

Explain Cross section of a PMOS transistor?

1227

What is the function of tie-high and tie-low cells?

1085

If not into production, how far did you follow the design and why did not you see it into production?

2099

Explain how Verilog is different to normal programming language?

1266

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

1041

Explain the working of Insights of a pass gate ?

1233

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