Assertion: zener diode | /r/MadeOf | doped p–n junction
Facets:
value: heavily
type: DEGREE
Source sentences:
text: A Zener diode contains a heavily doped p–n junction allowing electrons to tunnel from the valence band of the p-type material to the conduction band of the n-type material, such that the reverse voltage is "clamped" to a known value (called the Zener voltage), and avalanche does not occur.