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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 13529

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

3 13620

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

1 7579

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

4137

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

1 3686

Differences between DRAM and SRAM?

14 72877

What types of high speed CMOS circuits have you designed?

2 14604

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

1121

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

1383

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?

1204

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

1220

Draw the stick diagram of a NOR gate. Optimize it

1297

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)

1211

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

1138

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

1124

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Un-Answered Questions

Is microsoft access going away?

840

Does Pig support multi-line commands?

906

What are the various options for navigation available in sharepoint 2010?

789

Can you add up in word?

603

What is the difference between a method and a function in alice?

1213

List out the @functions?

890

What is a map? What are the implementations of map?

1104

Name some best features of Ambari?

What are rdb-open, rdb-save?

601

What is table calculation in tableau?

405

Explain Intermediate Language?

1082

Are the bites toxic? If toxic, what kind of symptoms are manifested from the bite?

2137

What is mod_security in apache?

983

what is prototyping model,RAD model V model, spiral model?????

5612

What is hybris framework?