Probable Questions
VLSI
Group A
1. What is the function of Bus Interface unit ? [2012(W), 2013(S)]
2. What is virtual memory? [2011-w, 2012-w]
3.What is paging ? [2013(W)]
4. What is parallel communication?[2015(W)]
5.Differentiate between N-channel MOSFET & P-channel MOSFET. [2016w]
6.What do you mean by pinch-off point? [2016w]
7.Write-down the different types of size-reduction strategies used for MOSFET scaling.
[2015(w)]
8.What do you mean by Lithography?[2013(w),2014(w)]
9. What is positive & negative photoresists?
10.Why negative photoresist is not applicable to photo lithographic process ?[2013(s)]
11.What are the design rules for layout design[2014(w)]
12.Draw the stick diagram for NAND gate.
13.Draw the stick diagram for NOR gate.
14. Draw the stick diagram of CMOS inverter.[2015(w)]
15.Draw the stick diagram of NMOS inverter.[2013(s)]
16. Draw the general circuit structure of an NMOS inverter& it’s VTC.[2013(w), 2016w]
17.List out the advantage of deletion load inverter.[2015(w)]
18.Define flash memory.[2015(w)]
19.Explain SR flipflop/latch.[2015(w)]
20. What are the advantages of complementary pass transistor?[2015(w)]
Group B
- Write down the difference between RISC and CISC.[2014(w),[2015(w)]
- What is pipelining? Describe different types of pipeline hazards. [2015(S)]
3.Derive the threshold voltage (VT) equation for MOSFET. [2013(s)]
4.What is scaling? Describe different types of scaling.[2013(w),2014(w), 2016w]
5.Write down level 2 model equations.[2013(w)]
6.Why the design rules are required ? What are the design rules for layout design? Discuss the ways to design. [2013(s)]
7.Briefly explain the full custom mask layout design.
8.Describe resistive load NMOS inverter with diagram.[2015(w)]
9.Briefly explain the interconnects effects of CMOS inverter.[2013(s), 2016w]
10.Derive the equation for VOH, VOL, & VIH for resistive load inverter with n-type MOSFET.
11. Write Short notes CMOS NAND-2 gate.[2015(w)]
12. Explain SR latch using CMOS logic circuits.[2013(w), 2016w]
13. Discuss briefly about the basic principle of dynamic logic ckt & its advantages. [2013(s), 2016w]
14. What is pass gate? Explain about the pass gate.[2014(w)]
- Differentiate between FPGA and CPLD. [2013(S)]
Group C
1. Explain MOSFET V-I characteristics.[2015(w), 2016w]
2. Describe structure & operations of MOS transistor & explain the N-MOSFET operation.
[2013(w),2014(w),2015(w), 2016w]
3.Explain MOSFET capacitances (Oxide – related capacitance, Junction capacitance).
[2013(w), [2015(w)]]
4. What are the different VLSI design methodology? Discuss in detail.[2013(S),2014(w)]
5. Explain VLSI design flow with Y- Chart. [2014(w), 2016w]
6. Explain the fabrication process of NMOS transistor with process flow for the fabrication.
[2013(w),2014(w), [2015(w), 2016w]]
7. Describe the steps for CMOS n-well fabrication process. [2015(w)]]
8.Explain the operation of CMOS inverter and its characteristics with neat diagram.
[2013(w, s), 2014(w), 2016w]
9. Write Short notes on dynamic random access memory.
10.Write Short notes on static random access memory.[2013(s)]
11.Write Short notes on flash memory.[2013(s)]
12.Describe the operation of S-R latch.[2014(w)]
13. Explain the clocked JK latch circuit with neat diagram.[2013(s)]
14.Describe VLSI design style of FPGA.[2015(w), 2016w]
15.Describe the basic principle of pass transistor ckt.
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