TERMIUM Plus®

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EFFET AVALANCHE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-04-16

English

Subject field(s)
  • Semiconductors (Electronics)
CONT

Impact ionization and avalanche multiplication of electrons and holes in the presence of a large electric field. The excess energy is given off to generate an electron-hole pair through a band-to-band transition. This generation process causes avalanche multiplication in semiconductor diodes under high reverse bias: As one carrier accelerates in the electric field it gains energy. The kinetic energy is given off to an electron in the valence band, thereby creating an electron-hole pair. The resulting two electrons can create two more electrons which generate four more causing an avalanche multiplication effect. Electrons as well as holes contribute to avalanche multiplication.

French

Domaine(s)
  • Semi-conducteurs (Électronique)
DEF

Effet qui se manifeste par l'augmentation rapide des porteurs de charge lorsqu'un champ électrique intense agit sur un semi-conducteur.

Spanish

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Record 2 1999-06-04

English

Subject field(s)
  • Vacuum Tubes (Electronics)
  • Semiconductors (Electronics)
DEF

Rapid generation of a current flow with reverse-bias conditions as electrons sweep across a junction with enough energy to ionize other bonds and create electron-hole pairs, making the action regenerative.

French

Domaine(s)
  • Tubes et lampes (Électronique)
  • Semi-conducteurs (Électronique)
DEF

Réaction cinétique déclenchée par une infime partie d'un ensemble en équilibre potentiel instable.

OBS

L'effet d'avalanche est utilisé dans les transistors commutateurs, et dans les transistors pour générateurs d'impulsions.

Spanish

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