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Infosys VLSI Interview Questions
Questions Answers Views Company eMail

What are the limitations in increasing the power supply to reduce delay?

 2 12197

How does Resistance of the metal lines vary with increasing thickness and increasing length?

 3 12368

What happens if we increase the number of contacts or via from one metal layer to the next?

 1 6695

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

 3589

Insights of a 2 input NOR gate. Explain the working?

 1 2866

Differences between DRAM and SRAM?

 14 68161

What types of high speed CMOS circuits have you designed?

 2 13491

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

 632

Draw the Differential Sense Amplifier and explain its working. Any idea how to size this circuit? (Consider Channel Length Modulation)

 897

In the design of a large inverter, why do we prefer to connect small transistors in parallel (thus increasing effective width) rather than lay out one transistor with large width?

 682

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

 692

Draw the stick diagram of a NOR gate. Optimize it

 752

Given a layout, draw its transistor level circuit. (I was given a 3 input AND gate and a 2 input Multiplexer. You can expect any simple 2 or 3 input gates)

 718

Draw the timing diagram for a SRAM Read. What happens if we delay the enabling of Clock signal?

 673

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

 667

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Infosys VLSI Interview Questions


Un-Answered Questions

What are the specifications for conducting earth leakage test as per IEC standard?

1507

control panel design guidelines

2854

What is Statistic data item ?

250

Write a function to find out longest palindrome in a given string?

584

Explain why gas containers are mostly cylindrical in shape?

648




write a program to convert a expression in polish notation(postfix) to inline(normal) something like make 723+* (2+3) x 7 (not sure) just check out its mainly printing expression in postfix form to infix.

2258

Define analytics?

73

What are the disadvantages of ac voltage controllers?

541

What is the difference between isNull and isBlank?

225

formula to convert 2500mmh2o into m3/hr

489

What is django template language?

210

Tell me how does python handle the memory management?

440

What about the year gap criteria for HCL technology?

1768

What are many-to-many relationships and how can they be addressed in power bi ?

1

How can we call UDF(User Define Function) using C# code in ASP.net ?

5924