Series Preface |
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xi | |
Preface |
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xiii | |
Author |
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xv | |
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Chapter 1 Introduction to Micro- and Nanofabrication |
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1 | (12) |
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1.1 Introduction to Micro- and Nanofabrication |
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1 | (4) |
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1.1.1 Importance of Understanding the Techniques |
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1 | (1) |
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1.1.2 Creative Problem Solving |
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2 | (1) |
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1.1.3 What Has Been Done by Others versus What You Can Do |
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2 | (1) |
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1.1.4 Experiment versus Project |
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2 | (1) |
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3 | (1) |
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1.1.6 Carbon versus Silicon and Self-Assembly versus Micromachining |
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3 | (1) |
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1.1.7 Nanotechnology Is Old |
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3 | (1) |
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1.1.8 Moore's Prediction and Driving Forces |
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4 | (1) |
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1.1.9 Why Components Have to Be Small |
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4 | (1) |
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1.1.10 Nanofabrication Is a Multidisciplinary Science |
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5 | (1) |
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5 | (1) |
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1.2 Cleanrooms for Device Fabrication: Basic Concepts |
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5 | (8) |
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1.2.1 Cleanroom Classification and Airflow Rates |
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7 | (2) |
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1.2.2 Particle Count Measurement |
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9 | (1) |
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9 | (1) |
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1.2.4 Humidity, Temperature, and Lighting |
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10 | (1) |
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10 | (1) |
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10 | (1) |
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11 | (1) |
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11 | (2) |
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Chapter 2 Fundamentals of Vacuum and Plasma Technology |
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13 | (40) |
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2.1 Fundamentals of Vacuum |
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13 | (19) |
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15 | (1) |
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16 | (2) |
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2.1.3 Effect of a Vacuum Hose |
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18 | (1) |
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19 | (4) |
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23 | (1) |
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2.1.5.1 Turbo Molecular Pumps |
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23 | (3) |
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26 | (3) |
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29 | (1) |
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2.1.7 Adsorption and Desorption |
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29 | (2) |
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31 | (1) |
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2.2 Pressure and Flow Measurements |
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32 | (5) |
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2.2.1 Pressure (or Vacuum) Measurement |
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32 | (4) |
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2.2.2 Gas Flow Rate Measurement |
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36 | (1) |
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2.3 Fundamentals of Plasmas for Device Fabrication |
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37 | (16) |
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2.3.1 Parallel Plate Configuration |
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38 | (4) |
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2.3.2 Electron and Bulk Gas Temperature |
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42 | (3) |
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45 | (1) |
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2.3.4 DC Ion Sputtering and Implantation |
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46 | (1) |
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47 | (3) |
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2.3.6 Other Electrical Plasmas |
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50 | (1) |
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51 | (1) |
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51 | (1) |
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51 | (2) |
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Chapter 3 Physical and Chemical Vapor Deposition |
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53 | (46) |
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3.1 Physical Vapor Deposition |
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53 | (24) |
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3.1.1 Thermal Evaporation |
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53 | (2) |
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3.1.1.1 Resistance Heating Method |
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55 | (1) |
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3.1.1.2 Electron Beam Evaporation |
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55 | (4) |
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3.1.1.3 Thermal Evaporation Rate from the Source |
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59 | (1) |
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3.1.1.4 Deposition Rate and Distribution |
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60 | (1) |
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3.1.1.5 E-Beam Evaporation of Dielectrics |
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61 | (1) |
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3.1.1.6 Reactive Thermal Evaporation |
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62 | (1) |
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3.1.1.7 Thermal Evaporation of Alloys and Compounds |
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62 | (1) |
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3.1.1.8 Ion-Assisted Deposition |
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62 | (2) |
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3.1.2 Sputter Removal and Deposition |
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64 | (1) |
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3.1.2.1 Sputter Removal Mechanism |
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65 | (1) |
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66 | (3) |
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3.1.2.3 Magnetron Sputtering |
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69 | (1) |
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3.1.2.4 Sputter Removal Rate |
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69 | (1) |
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3.1.2.5 Sputter Deposition Rate |
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70 | (1) |
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3.1.2.6 Dependence of Sputter Deposition Rate on Pressure |
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71 | (1) |
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3.1.2.7 Energy of the Sputtered Atoms |
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71 | (1) |
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3.1.2.8 Sputter Up versus Sputter Down |
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72 | (1) |
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3.1.2.9 Compound Sputtering |
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73 | (1) |
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74 | (1) |
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3.1.2.11 Reactive Sputtering |
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74 | (1) |
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3.1.2.12 Thermal Evaporation versus Sputtering |
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75 | (1) |
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3.1.3 Pulsed Laser Deposition |
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76 | (1) |
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3.2 Chemical Vapor Deposition |
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77 | (8) |
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3.2.1 Atmospheric Pressure Chemical Vapor Deposition |
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81 | (1) |
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3.2.2 Low-Pressure Chemical Vapor Deposition |
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82 | (1) |
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3.2.3 Plasma-Enhanced Chemical Vapor Deposition |
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83 | (1) |
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3.2.4 Atomic Layer Deposition |
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84 | (1) |
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3.3 Thin-Film Measurements |
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85 | (8) |
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3.3.1 Thickness Measurement with a Quartz Crystal Microbalance |
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85 | (2) |
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3.3.1.1 Temperature Sensitivity |
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87 | (1) |
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88 | (1) |
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88 | (1) |
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3.3.1.4 Deposition Energy |
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88 | (1) |
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3.3.1.5 Density and z-Ratio |
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88 | (1) |
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3.3.2 Thickness Measurement with a Stylus Profiler |
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89 | (1) |
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3.3.3 Measurement of Optical Properties |
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89 | (1) |
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89 | (1) |
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3.3.4.1 Origins of Film Stress |
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90 | (1) |
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3.3.4.2 Measurement of Stress |
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90 | (2) |
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3.3.4.3 Compressive Stress |
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92 | (1) |
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92 | (1) |
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93 | (1) |
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93 | (6) |
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93 | (1) |
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93 | (1) |
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93 | (1) |
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93 | (1) |
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94 | (1) |
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94 | (1) |
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94 | (1) |
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94 | (1) |
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94 | (1) |
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94 | (1) |
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94 | (1) |
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95 | (1) |
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95 | (1) |
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95 | (1) |
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3.4.15 Magnesium Fluoride |
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95 | (1) |
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95 | (1) |
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95 | (1) |
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95 | (1) |
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96 | (1) |
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96 | (1) |
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96 | (1) |
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96 | (1) |
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97 | (2) |
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Chapter 4 Thin-Film Optics |
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99 | (28) |
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4.1 Antireflection Coatings |
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99 | (9) |
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99 | (1) |
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4.1.2 Single-Layer Antireflection Coating |
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100 | (3) |
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4.1.3 Two-Layer Quarter-Wave Film Designs |
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103 | (2) |
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4.1.4 Two-Layer Non-Quarter-Wave Film Designs |
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105 | (3) |
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4.1.5 Three-Layer Antireflection Design |
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108 | (1) |
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4.2 Transfer Matrix Method for Modeling Optical Thin Films |
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108 | (3) |
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4.3 High-Reflection Dielectric Coatings |
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111 | (1) |
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112 | (8) |
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4.4.1 Reflectance Properties of Metals |
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112 | (2) |
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4.4.2 Antireflection for Metals |
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114 | (3) |
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4.4.3 High Optical Transmission through Metals |
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117 | (3) |
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4.5 Optical Thin-Film Deposition |
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120 | (7) |
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124 | (1) |
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125 | (1) |
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125 | (2) |
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Chapter 5 Substrate Materials |
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127 | (12) |
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128 | (6) |
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5.1.1 Silicon Wafer Manufacture |
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128 | (1) |
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128 | (1) |
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129 | (1) |
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129 | (1) |
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129 | (1) |
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5.1.1.5 Etching, Lapping, and Polishing |
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129 | (1) |
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5.1.1.6 Finished Silicon Wafers |
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130 | (1) |
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5.1.2 Silicon Crystal Orientations |
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130 | (1) |
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131 | (1) |
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131 | (1) |
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131 | (1) |
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5.1.2.4 Other Crystal Planes |
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131 | (1) |
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5.1.2.5 Crystal Orientations and Their Properties |
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131 | (1) |
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132 | (1) |
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132 | (2) |
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134 | (1) |
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134 | (1) |
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5.4 Compound Semiconductors |
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135 | (1) |
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5.5 Properties of Substrates |
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136 | (3) |
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136 | (3) |
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139 | (70) |
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6.1 Substrate Cleaning and Preparation |
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139 | (3) |
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6.1.1 Acetone-Methanol-Isopropyl Alcohol (AMI) Cleaning |
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139 | (1) |
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6.1.2 Piranha (Sulfuric Peroxide Mixture) Cleaning |
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140 | (1) |
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140 | (1) |
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6.1.4 Buffered Oxide Etch (BOE) Clean |
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140 | (1) |
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140 | (1) |
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141 | (1) |
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6.1.7 Evaluation of Surface Quality |
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141 | (1) |
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142 | (10) |
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6.2.1 Stage 1: Dispense Stage |
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142 | (1) |
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6.2.2 Stage 2: Spread Stage |
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142 | (1) |
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6.2.3 Stage 3: Thin-Out Stage |
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143 | (4) |
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6.2.4 Stage 4: Evaporation Stage |
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147 | (2) |
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149 | (1) |
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6.2.6 Common Problems Encountered in Spin Coating |
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149 | (2) |
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6.2.7 Solvent Bake (Soft Bake) |
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151 | (1) |
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152 | (4) |
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6.3.1 Laser-Written Photomasks |
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152 | (2) |
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154 | (1) |
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6.3.3 Electron Beam-Written Photomasks |
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154 | (2) |
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156 | (1) |
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6.5 Contact Mask Lithography |
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157 | (3) |
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6.6 Projection Photolithography |
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160 | (3) |
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6.7 Basic Properties of Photoresists |
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163 | (21) |
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6.7.1 Components of Photoresists |
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163 | (2) |
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6.7.2 Effects of Moisture on Photoresist Performance |
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165 | (1) |
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166 | (1) |
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6.7.4 Modeling the Optical Performance of Photoresists |
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166 | (1) |
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166 | (2) |
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168 | (1) |
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6.7.4.3 Numerical Shooting Method for Modeling the Optical Field |
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168 | (6) |
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174 | (1) |
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6.7.4.5 Quasi-Two-Dimensional Model |
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175 | (3) |
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6.7.4.6 Bottom Antireflection Coatings |
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178 | (3) |
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6.7.5 Negative-Tone Photoresists |
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181 | (1) |
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181 | (1) |
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182 | (2) |
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184 | (1) |
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184 | (3) |
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6.9 Patterning by Lithography |
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187 | (6) |
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6.9.1 Etch-Down Patterning |
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187 | (2) |
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6.9.2 Lift-Off Patterning |
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189 | (1) |
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190 | (1) |
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6.9.4 Etch-Down versus Lift-Off Patterning |
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190 | (1) |
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190 | (1) |
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191 | (1) |
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6.9.4.3 Linewidth Control |
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191 | (1) |
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191 | (1) |
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192 | (1) |
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6.9.5 Patterning by Planarization |
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192 | (1) |
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6.10 Laser Interference Lithography |
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193 | (2) |
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6.11 Resolution Enhancement Techniques |
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195 | (3) |
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6.11.1 Phase-Shifted Masks |
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196 | (1) |
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6.11.2 Optical Proximity Corrections |
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196 | (1) |
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6.11.3 Self-Aligned Double Patterning |
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196 | (2) |
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6.11.4 Directed Self-Assembly |
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198 | (1) |
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6.12 Extreme-UV Lithography |
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198 | (1) |
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6.13 Nonoptical Lithography |
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199 | (10) |
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6.13.1 Electron Beam Lithography |
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199 | (3) |
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6.13.2 Nanoimprint Lithography |
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202 | (1) |
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203 | (1) |
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203 | (1) |
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204 | (5) |
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Chapter 7 Wet Chemical and Plasma Etching |
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209 | (32) |
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209 | (12) |
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209 | (3) |
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7.1.2 Wet Chemical Etch of Selected Materials |
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212 | (1) |
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7.1.2.1 Silicon Dioxide Etch |
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212 | (2) |
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7.1.2.2 Silicon Nitride Etch |
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214 | (1) |
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215 | (1) |
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215 | (1) |
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215 | (1) |
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215 | (1) |
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215 | (1) |
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215 | (1) |
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7.1.3 Orientation-Dependent Wet Etching of Silicon |
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215 | (1) |
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7.1.3.1 (100) Silicon Etch with KOH |
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215 | (4) |
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7.1.3.2 (110) Silicon Etch with KOH |
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219 | (1) |
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7.1.3.3 Other Etchants for Orientation-Dependent Etching of Silicon |
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220 | (1) |
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221 | (20) |
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7.2.1 Basic Construction of a Plasma Etcher |
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222 | (1) |
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7.2.2 Free Radicals and Ions in a Plasma and Their Roles |
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223 | (4) |
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7.2.3 Inductively Coupled Plasma Etching |
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227 | (1) |
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7.2.4 Substrate Temperature |
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228 | (1) |
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228 | (1) |
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7.2.5.1 SF6 Plasma for Etching Silicon |
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229 | (2) |
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7.2.5.2 CF4 Plasma for Etching Silicon |
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231 | (1) |
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7.2.5.3 Mixed Gas Fluorine Plasmas for Etching Silicon |
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232 | (1) |
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7.2.5.4 Cl2 Plasma for Etching Silicon |
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233 | (1) |
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7.2.6 Photoresist Erosion in a Plasma Etch |
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234 | (3) |
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237 | (1) |
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238 | (1) |
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238 | (3) |
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Chapter 8 Doping, Surface Modifications, and Metal Contacts |
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241 | (38) |
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241 | (1) |
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8.2 Doping by Thermal Diffusion |
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242 | (12) |
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8.2.1 Vapor, Liquid, and Solid Dopant Sources |
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242 | (4) |
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8.2.2 Calculation of Diffusion Profiles |
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246 | (6) |
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8.2.3 Masking for Thermal Diffusion |
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252 | (2) |
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254 | (7) |
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8.3.1 Doping by Ion Implantation |
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254 | (4) |
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8.3.2 Masking Materials for Ion Implantation |
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258 | (1) |
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8.3.3 Implantation for Silicon-on-Insulator Substrates |
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258 | (3) |
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8.4 Thermal Oxidation of Silicon |
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261 | (7) |
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8.5 Metal Contacts to Semiconductors |
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268 | (11) |
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275 | (4) |
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Chapter 9 Metrology for Device Fabrication |
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279 | (10) |
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9.1 Semiconductor Device Fabrication Metrology |
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279 | (6) |
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9.1.1 Substrate Defect Metrology |
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279 | (1) |
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9.1.2 Lithography Metrology |
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279 | (3) |
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282 | (1) |
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9.1.4 Metrology for Ion Implantation |
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283 | (2) |
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9.2 Interconnect Metrology |
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285 | (4) |
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9.2.1 Low-e Dielectric Film Metrology |
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286 | (1) |
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9.2.2 Metal Layer Metrology |
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286 | (1) |
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286 | (1) |
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287 | (2) |
Index |
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289 | |