Evolution of VLSI Technology Quiz
17 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the relationship between the inversion condition ϕs and ϕF?

  • They are unrelated
  • They are inversely proportional
  • They are directly proportional
  • They are equal (correct)
  • At the onset of surface inversion in a MOS structure, how can the maximum depletion region depth be determined?

  • By using the inversion condition ϕs = - ϕF (correct)
  • By ignoring the surface inversion condition
  • By increasing the gate bias voltage
  • By decreasing the drain bias voltage
  • What is the mode of operation dependent on in a MOS system?

  • Drain-source voltage only
  • Gate bias voltage, drain voltage, source voltage (correct)
  • Gate-source voltage, drain-source voltage
  • Gate-drain voltage, source-drain voltage
  • According to convention, which terminal is considered as the source in an MOS system?

    <p>The terminal at a lower voltage</p> Signup and view all the answers

    In which region of operation does an NMOS have zero channel current (Ids = 0)?

    <p>Cutoff region</p> Signup and view all the answers

    What assumption does the long-channel model make about the current through an OFF transistor?

    <p>It is zero</p> Signup and view all the answers

    What is the reason behind calling these capacitances 'junction' capacitances?

    <p>Due to the PN junctions formed between the two materials</p> Signup and view all the answers

    Which capacitances are we particularly concerned with in this context?

    <p>Csb and Cdb</p> Signup and view all the answers

    What factor highly influences the junction capacitances discussed?

    <p>Bias voltages</p> Signup and view all the answers

    What defines the area for the n+ / p junction in relation to the diffusion region beneath the gate?

    <p>W·xj</p> Signup and view all the answers

    Which type of junction involves a diffusion region to a channel-stop implant on the side (sidewall)?

    <p>n+ / p+ junction</p> Signup and view all the answers

    What technology was developed by Julius Edgar Lilienfeld in 1925?

    <p>MESFET</p> Signup and view all the answers

    Which year saw the development of Si BJT technology at Bell Labs?

    <p>1954</p> Signup and view all the answers

    Who invented the first Integrated Circuit in 1961?

    <p>Kilby</p> Signup and view all the answers

    What phenomenon causes the substrate semiconductor to become n-type at the surface?

    <p>Ion implantation</p> Signup and view all the answers

    Which technology led to the increase in electron density at the surface compared to the bulk substrate?

    <p>$E_i &lt; E_{FP}$</p> Signup and view all the answers

    In a MOS structure, where does the positive gate potential attract additional minority carriers?

    <p>Bulk substrate</p> Signup and view all the answers

    More Like This

    Mastering VLSI
    5 questions

    Mastering VLSI

    PatriIguana avatar
    PatriIguana
    VLSI Technology
    5 questions
    Microcontroller Technology Quiz
    10 questions
    VLSI Technology Quiz
    7 questions

    VLSI Technology Quiz

    RobustOctopus8027 avatar
    RobustOctopus8027
    Use Quizgecko on...
    Browser
    Browser