Preface |
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xiii | |
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1 | (26) |
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1 | (1) |
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1.2 Basics of MOSFET and CMOS |
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2 | (9) |
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1.2.1 MOSFET Structure and Operation |
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3 | (3) |
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1.2.2 Operation of MOSFET as a Switch |
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6 | (3) |
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1.2.3 Short-Channel Effects in a MOSFET |
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9 | (1) |
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9 | (1) |
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1.2.5 Power Dissipation in a CMOS Circuit |
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10 | (1) |
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11 | (1) |
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1.4 Types of CMOS Scaling |
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12 | (2) |
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1.4.1 Constant-Field Scaling |
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13 | (1) |
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1.4.2 Constant-Voltage Scaling |
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13 | (1) |
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1.5 Historical Perspective of CMOS Scaling |
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14 | (3) |
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1.6 Current Trends in CMOS Scaling |
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17 | (3) |
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1.7 Challenges in Continued CMOS Scaling |
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20 | (1) |
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1.8 Emerging Research Devices |
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21 | (1) |
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22 | (5) |
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27 | (18) |
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27 | (1) |
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27 | (2) |
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2.3 Quantum Mechanical Tunneling |
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29 | (4) |
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2.4 Solving the Tunneling Problem |
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33 | (4) |
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2.4.1 Analytic Approximation Methods |
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33 | (3) |
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36 | (1) |
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2.5 Junction Breakdown Due to Tunneling |
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37 | (2) |
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39 | (2) |
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41 | (4) |
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3 Basics of Tunnel Field-Effect Transistors |
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45 | (38) |
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45 | (1) |
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45 | (4) |
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49 | (3) |
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3.4 Transfer Characteristics |
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52 | (3) |
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52 | (2) |
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3.4.2 Subthreshold Region |
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54 | (1) |
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3.4.3 Super-Threshold Region |
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55 | (1) |
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55 | (5) |
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60 | (4) |
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3.7 Output Characteristics |
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64 | (3) |
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3.7.1 Tunnel Resistance-Dominated Region |
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65 | (1) |
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3.7.2 Channel Resistance-Dominated Region |
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65 | (1) |
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66 | (1) |
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67 | (1) |
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3.9 Different Types of TFETs |
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68 | (1) |
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3.10 Impact of Device Parameters |
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69 | (2) |
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69 | (1) |
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69 | (1) |
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3.10.3 Source Doping Concentration and Profile |
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70 | (1) |
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70 | (1) |
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71 | (3) |
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3.12 Impact of Temperature |
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74 | (1) |
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3.13 Promises and Limitations |
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75 | (1) |
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76 | (7) |
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4 Boosting ON-Current in Tunnel Field-Effect Transistor |
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83 | (40) |
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83 | (1) |
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4.2 Types of Techniques to Boost ON-Current |
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83 | (2) |
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85 | (6) |
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4.3.1 Thickness and Dielectric Constant of Gate Oxide |
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85 | (1) |
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86 | (1) |
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86 | (2) |
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4.3.4 Asymmetric Gate Structures |
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88 | (2) |
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4.3.5 Quality of Gate Oxide |
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90 | (1) |
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4.4 Tunneling Junction Engineering |
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91 | (7) |
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91 | (2) |
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93 | (2) |
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95 | (3) |
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4.5 Materials Engineering |
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98 | (10) |
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99 | (1) |
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4.5.2 III-V Semiconductors |
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99 | (3) |
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102 | (4) |
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106 | (2) |
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108 | (2) |
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110 | (13) |
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5 III-V Tunnel Field-Effect Transistor |
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123 | (32) |
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123 | (1) |
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124 | (3) |
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5.3 Challenges in III-V Materials-Based MOSFETs |
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127 | (3) |
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5.4 A III-V TFET Prototype |
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130 | (3) |
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5.5 Heterojunction III-V TFETs |
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133 | (3) |
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5.6 Device Optimization in III-V TFETs |
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136 | (2) |
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5.7 Gate Dielectric in III-V TFETs |
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138 | (2) |
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5.7.1 Processing Techniques |
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139 | (1) |
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5.7.2 Interface Material Engineering |
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140 | (1) |
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5.7.3 Hybrid III-V/Silicon TFET |
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140 | (1) |
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140 | (3) |
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5.9 Impact of Temperature |
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143 | (1) |
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5.10 Challenges in p-Type III-V TFETs |
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144 | (1) |
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5.11 Current State and Future Perspective |
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145 | (1) |
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146 | (9) |
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6 Carbon-Based Tunnel Field-Effect Transistor |
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155 | (30) |
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155 | (1) |
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6.2 Carbon Nanotubes (CNTs) |
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156 | (2) |
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158 | (3) |
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6.3.1 Ballistic Transport |
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160 | (1) |
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6.3.2 Quantum Capacitance |
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160 | (1) |
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6.4 Device Optimization of CNT TFETs |
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161 | (2) |
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6.5 Challenges and Future Perspectives of CNT TFETs |
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163 | (2) |
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165 | (4) |
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169 | (6) |
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170 | (2) |
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6.7.2 Bilayer-Graphene TFET |
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172 | (1) |
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6.7.3 Graphene-on-SiC-Based TFET |
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173 | (1) |
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6.7.4 Zero-Bandgap Graphene TFET |
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174 | (1) |
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6.8 Device Optimization of Graphene TFETs |
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175 | (3) |
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6.9 Challenges and Future of Graphene TFETs |
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178 | (1) |
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178 | (7) |
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7 Nanowire Tunnel Field-Effect Transistor |
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185 | (22) |
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185 | (1) |
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185 | (6) |
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7.3 Silicon Nanowire TFETs |
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191 | (4) |
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7.4 Nanowire Heterostructure-Based TFETs |
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195 | (5) |
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7.4.1 Ge--SixGe21-x Core-Shell NWTFET |
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195 | (1) |
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7.4.2 InAs-Si Heterostructure NWTFET |
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196 | (2) |
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7.4.3 InGaAs-Si Heterostructure NWTFET |
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198 | (1) |
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7.4.4 InAs-SiGe Heterostructure NWTFET |
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198 | (1) |
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7.4.5 GaSb/InAs Heterostructure NWTFET |
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198 | (2) |
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7.5 Device Optimization of Nanowire TFETs |
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200 | (1) |
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7.6 Challenges and Future of Nanowire TFETs |
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200 | (1) |
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201 | (6) |
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8 Models for Tunnel Field-Effect Transistor |
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207 | (22) |
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207 | (1) |
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208 | (3) |
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8.2.1 Local Tunneling Models |
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208 | (1) |
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8.2.2 Non-Local Tunneling Models |
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209 | (2) |
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211 | (2) |
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8.3.1 Semi-Classical Simulation |
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211 | (1) |
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8.3.2 Full Quantum Simulation |
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212 | (1) |
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213 | (4) |
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8.4.1 Lookup Table (LUT)-Based Models |
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213 | (1) |
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8.4.2 Empirical and Semi-Empirical Models |
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214 | (1) |
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215 | (2) |
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217 | (5) |
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222 | (7) |
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9 Applications of Tunnel Field-Effect Transistors |
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229 | (32) |
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229 | (1) |
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9.2 Electrical Characteristics of TFETs |
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230 | (5) |
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9.2.1 Steep Subthreshold Swing |
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230 | (1) |
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9.2.2 Unidirectional Conduction |
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230 | (2) |
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9.2.3 Onset of Current in the Output Characteristics |
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232 | (1) |
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9.2.4 Gate-to-Drain Miller Capacitance |
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233 | (1) |
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9.2.5 Matching Characteristics of NMOS-Type TFETs and PMOS-Type TFETs |
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233 | (1) |
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9.2.6 Other Electrical Characteristics |
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234 | (1) |
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235 | (8) |
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235 | (5) |
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9.3.2 Applications in Digital Circuits |
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240 | (3) |
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9.4 Applications in Memories |
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243 | (4) |
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247 | (4) |
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9.5.1 Intrinsic Analog Parameters of TFETs |
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247 | (3) |
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9.5.2 Applications in Analog Circuits |
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250 | (1) |
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9.6 Future Perspective of TFETs in Circuits |
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251 | (1) |
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252 | (9) |
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261 | (14) |
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261 | (1) |
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10.2 State-of-the-Art TFETs |
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261 | (2) |
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10.3 Comparison with MOSFET |
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263 | (1) |
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10.4 Other Low-Subthreshold Swing Devices |
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264 | (4) |
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10.4.1 Impact-Ionization MOS (IMOS) |
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265 | (1) |
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10.4.2 Nanoelectromechanical Switch (NEMS) |
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266 | (1) |
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10.4.3 Negative Capacitance FETs (NCFETs) |
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267 | (1) |
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10.5 Challenges and the Road Ahead |
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268 | (1) |
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269 | (6) |
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Appendix A Simulation of Double Gate Tunnel Field-Effect Transistor |
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275 | (6) |
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275 | (2) |
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277 | (4) |
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Appendix B Simulation of SOI Tunnel Field-Effect Transistor |
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281 | (6) |
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281 | (2) |
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283 | (4) |
Index |
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