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p-n type question ?

Discussion in 'General Electronics Discussion' started by rabso, Nov 5, 2012.

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  1. rabso


    Nov 5, 2012
    why arsenic and gallium become a full compound and silicon and boron have a hole ?
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    It's those pesky 'O's in boron.

    Don't arsenic and gallium have another effect?

    If you can understand one, you'll understand the other.

    Is this a homework question?
  3. rabso


    Nov 5, 2012
    i have a mid term on this subject next week and our Dr is not good in teaching and our Dr assistant traveled and i have to read the book and understand so far i understand but i confused do the valence atom seek to be 4 so that the atom bigger than four lose one and become donor and less than 4 become acceptor and accepts one and what is thos pesky O`s ? thanks to all for your effort
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