Download JNTUA M.Tech 1st Sem 2016 Feb Reg-Supple 9D06106c Low Power VLSI Design Question Paper

Download JNTUA (JNTU Anantapur) M.Tech ( Master of Technology) 1st Semester 2016 Feb Reg-Supple 9D06106c Low Power VLSI Design Previous Question Paper

Code: 9D06106c


M.Tech I Semester Regular & Supplementary Examinations February 2016
LOW POWER VLSI DESIGN
(Common to DSCE & DECS)
(For students admitted in 2011, 2012, 2013, 2014 & 2015 only)

Time: 3 hours Max Marks: 60

Answer any FIVE questions
All questions carry equal marks
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1 (a) What are the factors that make power as an important design constraint in today?s VLSI design? List
and explain.
(b) What are the advantages and disadvantages of Silicon-on-insulator?

2 (a) Draw the cross sectional diagram of optimized twin-well BiCMOS structure and explain the process.
(b) Describe integrated digital CMOS process.

3 (a) What are the advantages of copper inter connects for deep submicron CMOS/BiCMOS structures.
(b) Explain about low power CMOS circuit design technique.

4 (a) Discuss about MOSFET model parameters related to trans-conductance.
(b) What are the limitations of MOSFET models? Mention some of MOSFET model applications.

5 (a) Draw the circuit diagram of common emitter BiCMOS drive configuration and explain the operation
with I
SD
? V
SD
characteristics.
(b) Draw the circuit diagram of two-input CMOS NOR gate and explain its operation with the help of
truth table.

6 (a) Compare the advanced BiCMOS NAND (two input) implementations with neat circuit diagram.
(b) Briefly explain about ESD ? free BiCMOS circuits.

7 (a) Explain about design quality measures for latches and flip flops.
(b) Draw a transmission gate based dynamic flip flop and explain its operation.

8 (a) Discuss about power reduction process in clock networks.
(b) Describe the power consumption in a 4-transistor SRAM cell.
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