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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 13516

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

3 13612

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

1 7572

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

4132

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

1 3671

Differences between DRAM and SRAM?

14 72828

What types of high speed CMOS circuits have you designed?

2 14598

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

1116

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

1372

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?

1198

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

1211

Draw the stick diagram of a NOR gate. Optimize it

1295

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)

1204

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

1135

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

1121

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Un-Answered Questions

1. Using the XML Document below, with the URI “recipe.xml” define the following queries in XQuery: a.) Give the names of all breakfast in the menu. b.) Select breakfasts that have price lower than $7.00? Belgian Waffles $5.95 two of our famous Belgian Waffles with plenty of real maple syrup 650 Strawberry Belgian Waffles $7.95 light Belgian waffles covered with strawberries and whipped cream 900 Berry-Berry Belgian Waffles $8.95 light Belgian waffles covered with an assortment of fresh berries and whipped cream 900 French Toast $4.50 thick slices made from our homemade sourdough bread 600 Homestyle Breakfast $6.95 two eggs, bacon or sausage, toast, and our ever-popular hash browns 950

2144

How do in-process and cross-process communication work in the common language runtime?

938

What is singleton class? Explain the steps to create a singleton class?

How do I combine two names in excel?

725

que.is ideal size of bricnk use in india,joint size of mortar in massinary ,how many bricks used in 1cum.how to test at site.what is the possition of marka used in bricks?

2507

How do jit compilers work?

791

What does session_start () do?

1108

What is argument in excel?

656

What is semirigid connections?

2162

What are the 5 operating system?

961

What is transfer requirement?

606

What are the possible Job roles?

What is lambda value?

951

What are the risks of using open-source Generative AI models?

Define model database?

984