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I have a question about MOS C-V Characteristic.

  1. Sep 10, 2014 #1
    Hello, All Outstanding electrical engineering student, I have a some question.

    As posted,

    1. At low frequency, the inversion electrons will be able to respond to the ac voltage
    => CG (ω= 0) = Cox (Why?).

    2. At high frequency, inversion electrons are not able to respond to ac voltage
    => CG (ω=∞) = Cox Cs / (Cox + CS) =Cmin (Why?)

    Please.. answer logical comments. I'm so curiosity because of these matters.

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  2. jcsd
  3. Sep 10, 2014 #2


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    Science Advisor

    Sounds like a homework problem. According to PF rules, you need to make an attempt to solve the problem before we can help. Can you tell us your thoughts on the answers?
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