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VLSI Interview Questions
Questions Answers Views Company eMail

Explain the difference between write through and write back cache.

Intel,

2 16457

Are you familiar with the term MESI?

Intel,

2637

Are you familiar with the term snooping?

Intel,

3430

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

Intel, Sun Microsystems,

2785

In what cases do you need to double clock a signal before presenting it to a synchronous state machine?

Intel,

1 5405

You have a driver that drives a long signal & connects to an input device. At the input device there is either overshoot, undershoot or signal threshold violations, what can be done to correct this problem?

Intel,

2623

Are you familiar with VHDL and/or Verilog?

Intel,

1 4347

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

e-tec, Intel,

3091

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

Intel,

2835

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

Intel,

2391

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

Intel,

2272

What types of high speed CMOS circuits have you designed?

Intel,

2509

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

Intel,

3388

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

Intel,

2392

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

Intel,

2258


Post New VLSI Questions

Un-Answered Questions { VLSI }

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

4060


What happens if we delay the enabling of Clock signal?

2299


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

2785


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

2967


Draw Vds-Ids curve for a MOSFET. Now, show how this curve changes considering Channel Length Modulation.

1141


Explain the three regions of operation of a mosfet.

1035


Explain sizing of the inverter?

4368


What types of high speed CMOS circuits have you designed?

2509


What is the difference between the mealy and moore state machine?

1035


Give the cross-sectional diagram of the cmos.

942


Explain what is the use of defpararm?

1097


Describe the various effects of scaling?

4742


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

2940


What is the purpose of having depletion mode device?

987


Draw the Cross Section of an Inverter? Clearly show all the connections between M1 and poly, M1 and diffusion layers etc?

3329