VLSI Manufacturing Case Study Notes

Improved Essays
CHAPTER 3 HARDWARE REQUIREMENTS
3.1 GENERAL Enabling technology for a whole host of innovative devices and systems that have changed the way we live is the Integrated circuit(IC) Technology. In the year 2000 Jack Kilby and Robert Noyce received the Nobel Prize in Physics for their invention of the integrated circuit and without the integrated circuit, neither transistors nor computers would be as important as they are today. We know that VLSI systems are very smaller in size and consume less power when compared to discrete components that used to build electronic systems before the 1960s. Building up the systems with many more transistors is allowed by Integration, also much easier to design and manufacture and are more reliable than
…show more content…
In this section, we briefly survey VLSI manufacturing.
TECHNOLOGY
Most manufacturing processes are fairly tightly coupled to the item they are manufacturing. An assembly line built to produce Buicks, for example, would have to undergo moderate reorganization to build Chevys—tools like sheet metal molds would have to be replaced, and even some machines would have to be modified. And either assembly line would be far removed from what is required to produce electric drills.
MASK-DRIVEN
…show more content…
Efficiency in integrating number of transistors on a single chip is limited by the power consumption of a logic circuit. Due to minimizing the number of transistors per chip changes system designs in several ways and it increases the system physical size. Cooling requirements and Power supply will increases, if we use high-powered circuits. From the fact we know that the time required to transmit a signal between the chips is larger than the time required to transmit the same signal between the transistors on the same chip and due to this the advantage of using a higher speed circuit is lost. For every CMOS designer the relationship between heat and power consumption makes low-power design techniques as an important knowledge and low-power design is important especially in battery-operated systems like mobile phones. As CMOS size become smaller, additional power consumption come into act and traditional in CMOS static power consumption is less when compared to the dynamic power consumption. In the smaller size design, power consumption due to leakage is larger than dynamic power consumption and we should introduce new design techniques to conflict leakage

Related Documents

  • Great Essays

    There are other disadvantages of the IR-based solution: for example the transmitters tend to consume a lot of power so battery life is shortened if transmissions are frequent. • Network-based methods i) IEEE 802.15…

    • 5133 Words
    • 21 Pages
    Great Essays
  • Superior Essays

    However, the brushless DC motor has a higher initial cost compared to the brushed DC motors, due to computer parts and chips make up the commutator. This extra cost is only fractional in the long run…

    • 1018 Words
    • 5 Pages
    Superior Essays
  • Improved Essays

    IBM 701 still used a vacuum tube circuitry but used magnetic memory storage and could hold a maximum of 2048 words. Although it was relatively cheaper compare to the ENAIC, it still cost $4000 at the time and $35000 adjusted for inflation. Transistor was the first major breakthrough for electronic computers as it was much smaller and consumes a lot less power compare to the vacuum tube. University of Manchester created the first transistorize computer in 1953, and by 1955, the computer had only 200 transistors and consumed 150 watts. Then the discovery of the semiconductor silicone took the transistor to the next level; thousands or millions of transistor can be pack on to a tiny chip, and as a result, the computer processing power increase exponentially by the year.…

    • 784 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    Proponents see the efficient, clean energy created, while critics emphasize the risks of nuclear site accidents and long-term waste disposal. One of the biggest problems with this is how to handle the sentiment of the public who oppose nuclear power. In my view nuclear power is more beneficial than all other methods of energy production. First, nuclear power plants generate power more efficiently than wind or solar power plants. For example, it takes 450 solar stations to produce the same amount of energy that was produced at San Onofre.…

    • 2141 Words
    • 9 Pages
    Great Essays
  • Great Essays

    Hysteresis Motor Analysis

    • 1703 Words
    • 7 Pages

    9 11 is that the input power factor of all single-sided motors is unexpectedly larger than that of corresponding double-sided motors. As mentioned above, the length of end windings and subsequently the leakage flux are higher in single-sided motors. This leaves an adverse effect on the power factor of these motors. However, there are two large air gaps in a double-sided motor, mitigating its magnetizing reactance and as a result, the contribution of magnetizing current to the total current of the motor increases, which in turn curtails the power factor. In other words, since there is a relatively large effective air gap in double-sided motors with slotless core, the reduction of power factor due to the increased magnetizing current overruns the increase of power factor due to lower leakage flux of end windings.…

    • 1703 Words
    • 7 Pages
    Great Essays
  • Superior Essays

    Newer material has recently been used that unfortunately is not as efficient as the traditional silicon crystal on a large scale but is not only cheaper to make, but smaller and can be easily made into a flexible film. Copper-indium-gallium-selenide (CIGS) is the most common amongst the new solar technologies. 3Most people are familiar with the cells in which these crystals and forms are used – photovoltaic. These cells are found on objects ranging from spacecraft to handheld calculators. When the solar radiation makes contact with the cells, the electrons are pushed loose from their atoms, causing an electrical current which then flows through the cell to be harnessed for…

    • 1358 Words
    • 5 Pages
    Superior Essays
  • Great Essays

    Short College days and holiday periods do not make this practical for application to a College only but could be more effective if used to provide energy throughout the community. Biomass boilers are larger, costlier and fuel can be purchased much more cheaply in bulk so they tend to be better suited to a district heating system where adequate storage can be designed in. While not widely implemented throughout the UK we should consider Denmark where 60% of energy is provided through District Heating Systems. Further benefits of these systems are that CO2 emissions are reduced by over 90% when compared to fossil fuel equivalents. The difficulty in implementing these systems more widely is due to the initial cost to set up and run these systems so it is more manageable to introduce them gradually in conjunction with new wider development…

    • 7155 Words
    • 29 Pages
    Great Essays
  • Improved Essays

    Electric Car Factors

    • 722 Words
    • 3 Pages

    Drivers switching from conventional vehicle to electric vehicle will have more disposable in their hands to spend in other sectors such as housing, food and services. There will be a direct job creation by firms developing components used in electric vehicles and indirectly by the firms who supply these components to the firms. 2. Reduced reliance on Imported Oil Higher gas prices mean retailers will charge lower mark-up due to competition. This will reduce the profits made by the domestic companies.…

    • 722 Words
    • 3 Pages
    Improved Essays
  • Superior Essays

    Having less moving parts usually results in less maintenance needed, and less maintenance means more money saved. In addition to heavy maintenance costs, other disadvantages to owning a gasoline vehicle involves other costly repairs such as oil changes, filter changes, exhaust system repairs, etc. (How do Gasoline & Electric Vehicles Compare? 2-3). Buying a gasoline car has lots of added costs for repairs that is not present in electric vehicles.…

    • 1328 Words
    • 6 Pages
    Superior Essays
  • Improved Essays

    Electric Cars

    • 1221 Words
    • 5 Pages

    Electricity is also a great source of energy for the car. A major reason why electric cars are not so much used is that the average car battery used to run the vehicle can be extremely expensive. Prices can range anywhere from $5,000 to $25,000, depending on the battery quality. Even though it may seem that electricity does not cause pollution, it is an illusion because how the electricity is produced in the battery. The electricity is produced by nuclear fission in the battery.…

    • 1221 Words
    • 5 Pages
    Improved Essays