Electronics Engineering · Semiconductor Devices
Consider an avalanche photodiode (APD) with a p+-i-p-n+ configuration. This construction contains two heavily doped regions and two lightly doped regions. Which options correctly identify the heavily and lightly doped regions in this device?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1p and i are the heavily doped regions, whereas n+ and p+ are the lightly doped regions.
- 2p+ and p are the heavily doped regions, whereas i and n+ are the lightly doped regions.
- 3p+ and i are the heavily doped regions, whereas n+ and p are the lightly doped regions.
- 4p+ and n+ are the heavily doped regions, whereas i and p are the lightly doped regions.✓
Correct answer
p+ and n+ are the heavily doped regions, whereas i and p are the lightly doped regions.
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