Wednesday, January 25, 2023

Dr. A.P.J. Abdul Kalam University BE VIII SEM (EC) VLSI Design [EC803] June 2021 Question Paper

Dr. A.P.J. Abdul Kalam University

Bachelor of Engineering

Eighth Semester Main Examination, June-2021

VLSI Design [EC803]


Time: 3:00 Hrs Max Marks 70

Note: i) Attempt any five questions out of eight.

ii) All questions carry equal marks.

iii) Answer should be precise & to be point only.

iv) Assume suitable data if necessary & state them clearly.

Q.1 a) How you can explain the MOS fabrication using various steps? Explain any two

of them.

 b) Explain IC production process and what are the methods of testing in detail.

Q.2 a) Discuss the various design rules of CMOS. What is the significance of these rules in software system?

 b) Explain Latch up triggering. Latch up prevention and Internal Latch up prevention techniques.

Q.3 a) Draw and explain the output characteristics curve for n channel MOSFET

 b) How you can differentiate the designing parameters between PMOS and NMOS processing steps?

Explain with suitable example.

Q.4 a) What do you mean by systolic arrays? Draw any circuit which explains the effective results of these

types of arrays.

b) What is the Bit Serial Processing Elements? Explain its circuit or architecture with detail.

Q.5 a) Explain the high frequency diode model with suitable example.

 b) Define device modeling. Discuss the DC models and its classification

Q.6 a) Explain the twin tub method of CMOS IC fabrication.

b) Discuss about the Structured Logic Forms. How is it different from Random Logic Forms?

Q.7 a) Describe BJT Noise model with suitable diagram

 b) Discuss the principles of Qausi-static register cell.

Q.8 Write Short Notes on

 a) Basic n-well CMOS Process

b) Passive component Models

c) Algotronix

d) Micro coded Controllers

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