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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 13319

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

3 13454

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

1 7454

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

4063

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

1 3552

Differences between DRAM and SRAM?

14 72242

What types of high speed CMOS circuits have you designed?

2 14453

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

1061

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

1311

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?

1128

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

1141

Draw the stick diagram of a NOR gate. Optimize it

1227

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)

1158

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

1087

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

1059

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Un-Answered Questions

Is php faster than nodejs?

900

How do I open aspx files on android?

1018

What is adapter in blaze ds?

What are special gl transactions? : fi- accounts payable

1185

What are global variables?

1119

What r the documents required for performance testing

2236

What are runtime shared libraries in flex?

What is the advantage of extension method in c#?

838

Is dependency injection a pattern?

344

Is es6 typescript?

133

Are you familiar with internet architecture of oracle apps 11i?

1018

What is a microprocessor?

1083

Explain About Openpages It Governance?

1041

Define cut-in voltage of a p-n junction diode?

1097

What do you mean by j2ee module?

954