RGPV VLSI Design - December 2015 Exam Question Paper

RGPV Electronics and Communication Engineering (Semester 7)
VLSI Design
December 2015

Total marks: --
Total time: --

INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1(a) Write down all the steps of IC production process.

2 M

1(b) Write any five differences between the Bipolar technology and Hybrid Tech

2 M

1(c) Give a brief discussion about the size and complexity of Integrated circuits.

3 M

Solve any one question from Q.1(d) & Q.1(e)

1(d) "Microelectronics Field plays a vital role in VLSI designing" Prove this statement with the help of a suitable example.

7 M

1(e) Describe the various rules and process parameters of VLSL

7 M

2(a) Explain the operating principle of MOS Transistor at DC and low frequency.

2 M

2(b) Explain high frequency MOSFET Model.

2 M

2(c) How the circuits and signals get affected by changing the circuit from low frequency to high frequency?. Explain.

3 M

Solve any one question from Q.2(d) & Q.2(e)

2(d) Draw and explain all the MOSFET Models of digital applications with the help of a suitable diagram.

7 M

2(e) Derive a relation for the Sub threshold operations. How we can implement this operation on short channel devices?

7 M

3(a) Explain the principle of circuit simulation in VLSI designing .

2 M

3(b) How simulation does affect I the circuit by using SPICE? Explain.

2 M

3(c) Discuss about the large signal diode current and explain it with the help of a suitable example.

3 M

Solve any one question from Q.3(d) & Q.3(e)

3(d) Derive a relation for Temperature Dependence of the BJT. Use this expression to solve any one modeling operation.

7 M

3(e) Explain Level 2 Large Signal Model and compare it with the high frequency model.

7 M

4(a) Discuss the principle of Quasi Static register Cells.

2 M

4(b) Write differences between Random Logic and Structured Logic forms.

2 M

4(c) Draw and explain the circuit of Motorola 6800 microprocessor register cell.

3 M

Solve any one question from Q.4(d) & Q.4(e)

4(d) What do you mean by Systolic Arrays? Explain its Multiplication Process and general linear system solver mechanism.

7 M

4(e) Explain the principle of Micro coded controllers. Give any one practical application.

7 M

5(a) Explain the principle of Latch Up.

2 M

5(b) Discuss about the Twin tub process and its disadvantages in fabrication technique.

2 M

5(c) Discuss about Latch up's physical origin, its triggering and its prevention methods.

3 M

Solve any one question from Q.5(d) & Q.5(e)

5(d) Write short notes:
i) Algotronix ii) NMOS Process

7 M

5(e) i) BJT Noise Model ii) Interconnects

7 M

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