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VLSI Interview Questions
Questions Answers Views Company eMail

what is conductance and valence band?

1 6612

What is Fermi level?

5 11015

How does Vbe and Ic change with temperature?

Qualcomm,

3518

If the substrate doping concentration increase, or temperature increases, how will Vt change? it increase or decrease?

1 4682

what is Channel length modulation?

Intel,

2 7339

what is the doping?

5 8789

How does a pn junction works?

Wipro,

2 7733

What is the depletion region?

1 5726

Tell me the parameters as many as possible you know that used to character an amplifier?

1 3640

What are the two types of noise of MOSFET, how to eliminate them?(Thermal and Flicker).

Analog Devices,

4 14966

What is the build-in potential?

Wipro,

1 3330

Tell me how MOSFET works.

2430

For a 0.18um and 0.8um technology MOSFET, which has a higher cutoff frequency?

2 11856

How does a Bandgap Voltage reference work?

3913

What is the ideal input and output resistance of a current source?

3015


Post New VLSI Questions

Un-Answered Questions { VLSI }

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

3144


Explain what is the use of defpararm?

1157


How about voltage source?

2277


what is verilog?

1141


Explain the working of 4-bit Up/down Counter?

4439


Explain what is the depletion region?

1091


Why do we gradually increase the size of inverters in buffer design? Why not give the output of a circuit to one large inverter?

1301


Give the logic expression for an AOI gate. Draw its transistor level equivalent. Draw its stick diagram

1485


What is the function of tie-high and tie-low cells?

1093


You have three adjacent parallel metal lines. Two out of phase signals pass through the outer two metal lines. Draw the waveforms in the centre metal line due to interference. Now, draw the signals if the signals in outer metal lines are in phase with each other

1574


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

3316


Explain CMOS Inverter transfer characteristics?

3926


Why does the present vlsi circuits use mosfets instead of bjts?

1307


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

3008


For a NMOS transistor acting as a pass transistor, say the gate is connected to VDD, give the output for a square pulse input going from 0 to VDD

1462