Download JNTUA B.Tech 4-2 R13 2018 April AS 9A04605 VLSI Design Question Paper

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Code: 9A04605

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B.Tech IV Year II Semester (R09) Supplementary Examinations April 2018

VLSI DESIGN

(Electronics & Communication Engineering)

Time: 3 hours

Max. Marks: 70

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1. Answer any FIVE questions
   All questions carry equal marks
   Explain the following terms:
   1. Thermal oxidation technique.
   2. Kinetics of thermal oxidation.

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2. 1. Derive an equation for Rds of an n-channel enhancement MOSFET in linear region.
   2. Explain the term figure of merit of a MOS transistor.
3. Clearly explain the VLSI design flow with a neat flow chart.
4. 1. Explain the requirement & operation of pass transistor and transmission gates.

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   2. Write about CMOS logic, domino logic and n-pCMOS logic.
5. 1. Design logic for an ALU that can perform both logical and arithmetic operations.
   2. Enumerate all the 16 possible functions of a two input ALU.

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6. 1. Design a 3 × 8 binary decoder using NOR-NOR implementation of PLA.
   2. Implement the following function using PLA and EPROM:
      F1 = ABC + BC + AC
7. 1. Explain about event driven simulation.

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   2. Using VHDL as a tool, write a Program to synthesize a mod 10 counter.
8. 1. What are BIST techniques?
   2. Explain how BILBO is used for scan-path-test and also as a test vector generator.

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