Question

For a Zener diode

• A. both p and n regions are heavily doped
• B. p region is heavily doped but n region is lightly doped
• C. n region is heavily doped but p region is lightly doped
• D. both p and n regions are lightly doped
• E. depletion region is very thick

Answer 1

Answer: (A)

Both $p$ and $n$ are heavily doped, so that breakdown occurs easily.