What is Chip design in VLSI?
Institutes. VLSI which means ‘Very Large Scale Integration’ is all about Integrated Circuit (IC) design. Usually we call it as Chip design. Integrated circuits or IC chips are semiconductors which contain numerous pathways, which connect thousands or even millions of transistors and other electronic components.
What are the interview questions about VLSI?
Top 30+ Most Asked VLSI Interview Questions
- 1) What do you understand by Boolean logic?
- 2) What is the usage of Boolean logic?
- 3) How does a Boolean logic control the logical gates?
- 4) Why do the present VLSI circuits use MOSFETs Instead Of BJTs?
- 5) What are the various regions of operation of MOSFET?
Which architecture is used to design VLSI?
system on a chip architecture
Solution: SoC that is system on a chip architecture is used to design the very high level integrated circuit.
How long it takes to design a chip?
The microchip manufacturing process involves hundreds of steps and can take up to four months from design to mass production. In the cleanrooms of the chipmakers’ fabs (fabrication facilities), air quality and temperature are kept tightly controlled as robots transport their precious wafers from machine to machine.
What is Verilog in VLSI?
Advertisements. Verilog is a HARDWARE DESCRIPTION LANGUAGE (HDL). It is a language used for describing a digital system like a network switch or a microprocessor or a memory or a flip−flop. It means, by using a HDL we can describe any digital hardware at any level.
What are the basics of VLSI?
- 1.1 Number System.
- 1.2 Digital Arithmetic.
- 1.3.a Logic Gates.
- 1.3.b Logic Gates.
- 1.4 Combinational Circuits.
- 1.5 Multiplex (MUX)
- 1.6a Sequential Circuits (Introduction)
- 1.6b Sequential Circuits Components.
What is LV in VLSI?
VLSI UNIVERSE LVS stands for Layout vs Schematic. It is one of the steps of physical verification; the other one being DRC (Design Rule Check). While DRC only checks for certain layout rules to ensure the design will be manufactured reliably, functional correctness of the design is ensured by LVS.
What do chip designers look for when designing chips?
Power, Performance, Area estimations and trade offs – Most of current chip designs would have a target of meeting highest performance at the lowest power within an optimal area – decided by market requirements and cost. A chip designer will need to trade off several design features/techniques to meet this.
How to take care of on chip variation OCV?
To take care of OCV we need to add some pessimism in the timing of standard cells. We basically apply ±x% of additional delay to all the standard cells. Which is called OCV derate. Derate factor is a very simple approach to take of on chip variation. A fixed derate factor is applied on throughout the design.
What is the importance of design verification in RTL design?
In RTL design these would be useful for generating repetitive code, parameterizing designs for different needs etc. In design verification these would be useful even more in terms of simulation setup, testing, regression and debugs etc.
What causes voltage variation in a chip?
In Voltage variation, one is due to variation in external supply voltage and other is internal voltage variation inside the chip. There is no ideal voltage supply and there is always 2-5% variations in supply voltage even after utmost care is taken in the supply voltage design.