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 = and == in C?

Intel,

5 11485

Are you familiar with VHDL and/or Verilog?

Intel,

17 28140

What types of CMOS memories have you designed? What were their size? Speed?

Intel, Wipro,

4662

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

Intel,

3267

What types of I/O have you designed? What were their size? Speed? Configuration? Voltage requirements?

Intel,

1 5011

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

Intel,

3145

What types of high speed CMOS circuits have you designed?

Infosys, Intel,

2 14594

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

Intel,

5070

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

Intel,

1 7450

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

Intel,

3732

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

Intel,

1 5274

What is the most complicated/valuable program you written in C/C++?

HCL, IBM, Intel, TCS, TVS, Wipro,

23 42946

What is the difference between fifo and the memory?

DewSoft, Intel, Pentagon Rugged Systems,

6 30062

WHAT IS THE DIFFERENCE BETWEEN TESTING AND VERIFICATION OF VLSI CIRCUIT?

Intel, Wipro,

5 26786

Write a VLSI program that implements a toll booth controller?

Patni,

3988

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Un-Answered Questions { VLSI }

What types of CMOS memories have you designed? What were their size? Speed?

4662

Differences between IRSIM and SPICE?

5439

What are the Factors affecting Power Consumption on a chip?

1286

Describe a finite state machine that will detect three consecutive coin tosses (of one coin) that results in heads.

2841

In a SRAM layout, which metal layers would you prefer for Word Lines and Bit Lines? Why?

4127

How does Vbe and Ic change with temperature?

3518

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

3145

what is the use of defpararm?

1150

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

1346

What types of CMOS memories have you designed? What were their size? Speed?

3144

Explain various adders and difference between them?

1209

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

2187

What are the different gates where boolean logic are applicable?

1069

Explain how logical gates are controlled by Boolean logic?

1191

Tell me how MOSFET works.

2428

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