Energy Band Diagrams in Conductors and Semiconductors

Zener diodes are used for controlled break down in the ______ region

For break down voltages less than about 4V, the predominant effect is the ______ effect

For break down voltages greater than 6V, the predominant effect is the ______ break down

Between 4V and 6V, both the Zener effect and avalanche break down are ______

Silicon is usually preferred for the manufacture of ______ diodes because of high temperature and current capability

A light emitting diode is a PN junction that emits optical radiation generated by the recombination of electrons and holes when the junction is ______ biased

Most commercial LEDs are realized using a highly doped N and a ______ junction

Advantages of LEDs include high reliability, fast response, low cost, and low power ______

Disadvantages of LEDs include temperature dependence of radiation and sensitivity to over voltage ______

LEDs are commonly used as indicator lamps and displays in equipment such as digital watches and ______