Why is zener diode heavily doped?

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Tags

1. #diode
2. #while
3. #controlled
4. #lightly
5. #doped
6. #voltage
7. #avalanche
8. #doping
9. #value
10. #zener
11. #reverse
12. #heavily
13. #breakdown
14. #which
15. #occurs
16. #voltages
17. #mechanism
18. #predominant
19. #above
20. #approximately
21. #amount