1) A sample of silicon at room temperature and in thermal equilibrium is doped with acceptor atoms such that NA = 10¹5 cm-³. Determine the concentration of electrons and holes. ΝΑ 21 A complo of silicon at room tompor thermal equilibrium is dar por atoms
1) A sample of silicon at room temperature and in thermal equilibrium is doped with acceptor atoms such that NA = 10¹5 cm-³. Determine the concentration of electrons and holes. ΝΑ 21 A complo of silicon at room tompor thermal equilibrium is dar por atoms
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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2. **Problem 2:**
A sample of silicon at room temperature and in thermal equilibrium is doped with donor atoms such that \(N_D = 4 \times 10^{15} \text{cm}^{-3} \). Determine the concentration of electrons and holes.

3. **Problem 3:**
A silicon-based pn-junction at room temperature is doped such that \(N_A = 10^{15} \text{cm}^{-3} \) and \(N_D = 4 \times 10^{15} \text{cm}^{-3}\). A voltage of -2V is applied. Determine the junction capacitance per unit area.

Transcribed Image Text:### Parameters to Use for the Problems that Follow
- **K** = 1.38 × 10⁻²³ J/K
- **q** = 1.6 × 10⁻¹⁹ coulombs
### For Silicon at Room Temperature (T = 300K)
- **E_G** = 1.12 eV
- **n_i** = 1 × 10¹⁰ cm⁻³
- **ε_Si** = **K_Siε_0** = (11.8)(8.85 × 10⁻¹⁴) F/cm
- **μ_p** = 384.62 cm²/V·sec, **D_p** = 10 cm²/sec
- **μ_n** = 1230.77 cm²/V·sec, **D_n** = 32 cm²/sec
- **τ_n** = 2.0 × 10⁻⁴ sec, **τ_p** = 9.0 × 10⁻⁵ sec
- **L_n** = 8.0 × 10⁻² cm, **L_p** = 3.0 × 10⁻² cm
### Problems
1. **Problem 1:**
A sample of silicon at room temperature and in thermal equilibrium is doped with acceptor atoms such that \(N_A = 10^{15} \text{cm}^{-3} \). Determine the concentration of electrons and holes.

2. **Problem 2:**
A sample of silicon at room temperature and in thermal equilibrium is doped with donor atoms such that \(N_D = 4 \times 10^{15} \text{cm}^{-3} \). Determine the concentration of electrons and holes.

3. **Problem 3:**
A silicon-based pn-junction at room temperature is doped such that \(N_A = 10^{15} \text{cm}^{-3} \) and \(N_D = 4 \times 10^{15} \text{cm}^{-3}\). A voltage of -2V is applied. Determine the junction capacitance per unit area.

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