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VLSI Interview Questions
Questions Answers Views Company eMail

what is conductance and valence band?

1 6501

What is Fermi level?

5 10758

How does Vbe and Ic change with temperature?

Qualcomm,

3471

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

1 4560

what is Channel length modulation?

Intel,

2 7160

what is the doping?

5 8544

How does a pn junction works?

Wipro,

2 7584

What is the depletion region?

1 5615

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

1 3540

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

Analog Devices,

4 14764

What is the build-in potential?

Wipro,

1 3233

Tell me how MOSFET works.

2375

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

2 11742

How does a Bandgap Voltage reference work?

3852

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

2958


Post New VLSI Questions

Un-Answered Questions { VLSI }

What does it mean “the channel is pinched off”?

1318


Explain the three regions of operation of a mosfet.

1044


what is multiplexer?

1109


You have a driver that drives a long signal & connects to an input device. At the input device there is either overshoot, undershoot or signal threshold violations, what can be done to correct this problem?

2630


Are you familiar with the term MESI?

2651


Help with VHDL programming. Write a VHDL code for a D-Latch with clear input ?? (Hint: Set up a “Process” with appropriate sensitivity list to get the desired D-Latch with Clr working.) Inputs AND OUTPUTS: entity Lab4b is Port ( Clr, Clk, D : in STD_LOGIC; Q : out STD_LOGIC); end Lab4b;

1551


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)

1161


Mention what are the two types of procedural blocks in Verilog?

1226


What are the ways to Optimize the Performance of a Difference Amplifier?

2398


What are the Advantages and disadvantages of Mealy and Moore?

1208


Explain the operation of a 6T-SRAM cell?

4475


What is the difference between synchronous and asynchronous reset?

1057


Explain what is the use of defpararm?

1107


Draw a CMOS Inverter. Explain its transfer characteristics

1144


what are three regions of operation of MOSFET and how are they used?

1194