Mathematics · Semiconductor Devices
A semiconductor uses a P-type substrate with NA = 5 × 1015 cm-3 in an n-MOS device having a depletion region width of 0.415 μm. What is the magnitude of the depletion charge per unit area? (Take elementary charge q = 1.6 × 10-19 C)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11.60 × 10-10 C/cm2
- 23.32 × 10-8 C/cm2✓
- 36.42 × 10-9 C/cm2
- 41.82 × 10-8 C/cm2
Correct answer
3.32 × 10-8 C/cm2
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