Preface |
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ix | |
About the Authors |
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xiii | |
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Chapter 1 Introduction to Nanoelectronics |
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1 | (10) |
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1 | (1) |
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1.2 Scaling and Limitations of a Classical Cmos Device |
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2 | (1) |
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1.3 Potential Technologies Beyond Conventional Cmos |
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3 | (1) |
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1.4 Evolution of Novel Device Structures |
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4 | (7) |
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1.4.1 Planar Double-Gate (DG) MOSFETs |
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5 | (1) |
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6 | (2) |
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8 | (3) |
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Chapter 2 Tri-Gate FinFET Technology and Its Advancement |
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11 | (26) |
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11 | (1) |
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2.2 3D Tri-Gate/Finfet Technology |
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12 | (2) |
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2.3 FInfet Classification |
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14 | (4) |
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2.3.1 Bulk and Soi Finfets |
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15 | (1) |
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2.3.2 Double-Gate and Tri-Gate FinFETs |
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15 | (2) |
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2.3.3 Tied-Gate and Independent-Gate FinFETs |
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17 | (1) |
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2.3.4 Symmetric and Asymmetric FinFETs |
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17 | (1) |
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18 | (2) |
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2.5 Technological Restrictions |
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20 | (2) |
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2.6 Review of Advancements in FinFETs |
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22 | (5) |
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2.6.1 Device Structure and Performance Optimization |
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22 | (2) |
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2.6.2 Circuit Design Applications |
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24 | (2) |
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26 | (1) |
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2.7 FinFET Design Challenges and Issues |
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27 | (2) |
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2.7.1 High-Permittivity Materials as Spacers |
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28 | (1) |
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2.7.2 Parasitic Resistances and Capacitances |
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28 | (1) |
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2.7.3 SRAM Design Challenges |
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28 | (1) |
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29 | (8) |
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29 | (8) |
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Chapter 3 Dual-k Spacer Device Architecture and Its Electrostatics |
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37 | (34) |
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37 | (3) |
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3.2 Dual-k Spacer Device Architecture |
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40 | (3) |
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3.3 Tcad Simulation Methodology |
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43 | (1) |
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3.4 Inner High-k Spacer Length Optimization |
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44 | (5) |
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3.4.1 Charge Modulation by Spacer Engineering |
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44 | (4) |
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3.4.2 Effect of Underlap Length |
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48 | (1) |
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3.5 Fabrication Methodology of SymD-k and AsymD-kS FinFETs |
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49 | (2) |
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3.6 Electrostatics and Merits of Dual-k Spacer FinFETs |
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51 | (10) |
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3.6.1 Symmetric Dual-k (SymD-k) Tri-Gate Architecture |
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51 | (3) |
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3.6.2 Asymmetric Dual-k (AsymD-k) Tri-Gate Architecture |
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54 | (4) |
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3.6.3 Dual-k FinFETs with Different Spacer Permittivity |
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58 | (3) |
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3.7 A Comparative Analysis Between Symmetric and Asymmetric Spacer Architectures |
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61 | (6) |
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3.7.1 Source/Drain Spacer Engineering |
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62 | (1) |
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3.7.2 Current Characteristics |
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63 | (4) |
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67 | (4) |
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67 | (4) |
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Chapter 4 Capacitive Analysis and Dual-k FinFET-Based Digital Circuit Design |
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71 | (20) |
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71 | (2) |
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4.2 Impact of Fringe Capacitance on Dual-k FinFETs |
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73 | (6) |
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4.3 Dual-k FinFET-Based Cmos LOGIC Performance: Stability and Speed |
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79 | (8) |
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4.3.1 Static Performance: Noise Margins |
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80 | (1) |
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4.3.2 Dynamic Performance: Delay |
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81 | (1) |
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82 | (2) |
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4.3.2.2 Three-Stage Ring Oscillator |
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84 | (3) |
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4.4 Effect of Supply Voltage on Dual-k-Based Inverters |
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87 | (1) |
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88 | (3) |
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89 | (2) |
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Chapter 5 Design Metric Improvement of a Dual-k-Based SRAM Cell |
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91 | (30) |
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91 | (2) |
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5.2 Fundamentals and Evaluation Metrics For an Sram Cell |
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93 | (2) |
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5.3 Design Challenges of FinFET-Based SRAMs |
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95 | (1) |
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5.4 Review of Technology-Circuit Cooptimization of FinFET-BASED SRAMs |
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96 | (6) |
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5.4.1 Source/Drain Asymmetric FinFET-Based SRAM Cells |
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96 | (2) |
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5.4.2 Independent-Gate-Based FinFET SRAMs |
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98 | (1) |
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5.4.3 Fin-Thickness, Fin-Height, and Fin-Ratio Optimization |
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99 | (2) |
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5.4.4 Fabrication Level Optimization |
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101 | (1) |
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5.5 DUAL-k Spacer Engineered Sram CELLS |
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102 | (7) |
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5.5.1 Symmetric Dual-k (SymD-k) FinFET-Based SRAM Cell |
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102 | (4) |
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5.5.2 Asymmetric Dual-k (AsymD-k) FinFET-Based SRAM Cell |
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106 | (1) |
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5.5.2.1 The AsymD-kD FinFET SRAM Configuration |
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106 | (1) |
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5.5.2.2 The AsymD-kS FinFET SRAM Configuration |
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107 | (2) |
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5.6 Effect of Supply Voltage on Dual-k-Based Sram Cells |
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109 | (2) |
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5.7 Symmetric and Asymmetric Dual-k Sram Cell Comparison |
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111 | (4) |
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115 | (6) |
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116 | (5) |
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Chapter 6 Statistical Variability and Sensitivity Analysis |
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121 | (12) |
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121 | (1) |
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6.2 Impedance Field Method (IFM) and Technology Computer-Aided Design (TCAD) Simulation Setup |
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122 | (2) |
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6.3 Results and Discussions |
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124 | (6) |
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6.3.1 Statistical Variability of SymD-k and AsymD-kS Structures |
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124 | (3) |
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6.3.2 Statistical Variability of SymD-k and AsymD-kS--Based SRAM Cells |
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127 | (3) |
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130 | (1) |
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131 | (2) |
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131 | (2) |
Index |
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133 | |