Difference between a barrier and a junction in semiconductors?

Discussion in 'General Electronics Chat' started by electronice123, Jan 8, 2012.

  1. electronice123

    Thread Starter Senior Member

    Oct 10, 2008
    302
    0
    What is the difference between a barrier and a junction?
     
  2. PaulEE

    Member

    Dec 23, 2011
    423
    32
    "Barrier" refers to the microscopic phenomena at the junction and is related to the potential difference across it. The junction is the physical point of contact between two dissimilar types of material.

    disclaimer: I *think* that's the difference. I took a semiconductor class a few years ago, which is why I say *think*...it's been awhile. Anxious to hear what others have to say.
     
  3. Veracohr

    Well-Known Member

    Jan 3, 2011
    552
    76
    Yes. The potential barrier happens at the physical junction of p-type and n-type semiconductor material. The junction is a location, the barrier is an effect.
     
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