depletion region

[ dĭ-plēshən ]

A region in a semiconductor device, usually at the juncture of P-type and N-type materials, in which there is neither an excess of electrons nor of holes. Large depletion regions inhibit current flow. See also semiconductor diode.

Nearby words

  1. deplete,
  2. depleted uranium,
  3. depletion,
  4. depletion allowance,
  5. depletion layer,
  6. depletory,
  7. deplorable,
  8. deploration,
  9. deplore,
  10. deploy

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.