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semi conductors

Discussion in 'General Electronics' started by cowgiljl, Feb 11, 2004.

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  1. cowgiljl

    cowgiljl Guest

    Well i am just going back to school again and taking electronics.
    I have only 2 question so far

    1) Imagine a crystalline structure within a small block of silicon.
    Will all the silicon atoms on the surface have 8 valenance electrons?
    Why? I am lost on this one

    2) Does an n-type semiconcuctor exhibit a negitive charge, or is it
    electrically neutral? I thought n type semi con. were negitive

    I know you guys don't do homework with out showing your work which is
    a good thing

    any help would be great thanks
  2. Quark Ng

    Quark Ng Guest

    Did you mean to ask about info on semiconductors or did you really
    wanted to ask how computers are designed and how they work? They
    actually are two separate things.

    I can help with both cases but it'll help me respond if I know what to
    focus on. Thanks!

  3. cowgiljl

    cowgiljl Guest

    they are just diodes and i haven't took chemistry yet
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