Acknowledgments .............................................. xiii
Preface ........................................................ xv
1 The Silicon-on-Sapphire Fabrication Process .................. 1
1.1 Introduction ............................................ 1
1.2 Why SOI? ................................................ 2
1.3 The SOS Fabrication Process ............................. 3
1.4 SOS Wafer Manufacturing ................................. 6
1.5 Peregrine SOS Process Features .......................... 9
1.6 MOS Devices in the Peregrine SOS Process ............... 11
1.7 SOS MOS Characteristics for Analog Design .............. 14
1.8 Summary ................................................ 38
2 SOS MOSFET Modeling ......................................... 39
2.1 Introduction ........................................... 39
2.2 A Model of the SOS MOSFET in Strong Inversion .......... 40
2.3 Hot Electron Effects in SOS MOSFETs .................... 48
2.4 EKV Model and Parameter Extraction ..................... 63
2.5 Models of SOS Four Terminal MOSFETs Operated as
Bipolar Transistors .................................... 71
2.6 SOS Flash Memory Devices ............................... 77
2.7 Conclusions ............................................ 86
2.8 Data Collection Methods ................................ 87
3 Design of SOS Single-Stage Amplifiers and Analog
Components .................................................. 89
3.1 Introduction ........................................... 89
3.2 Analog Characteristics of SOS MOSFETs .................. 89
3.3 SOS Current Mirrors .................................... 94
3.4 SOS Supply-Independent Current Reference ............... 97
3.5 SOS Single-Stage Amplifiers ............................ 98
3.6 SOS Differential Amplifiers ........................... 116
4 Design of SOS Operational Amplifiers, Comparators,
and Voltage References ..................................... 125
4.1 Operational Amplifiers in SOS ......................... 125
4.2 Comparator Circuits in SOS ............................ 131
4.3 SOS Bandgap References ................................ 138
5 Digital Circuit Design in SOS .............................. 145
5.1 Introduction .......................................... 145
5.2 SOS Inverter Characteristics .......................... 145
6 Design of SOS Data Converters .............................. 155
6.1 Introduction .......................................... 155
6.2 SOS DACs .............................................. 156
6.3 SOS DACs .............................................. 164
6.4 SOS Asynchronous ΣΔ Analog to Digital Converters ...... 189
6.5 Summary ............................................... 195
7 Photosensitive Circuits .................................... 197
7.1 Introduction .......................................... 197
7.2 Photodetector Design: General Theory .................. 199
7.3 Photodiode Design in a Bulk CMOS Process .............. 204
7.4 SOS Photodetectors .................................... 207
7.5 Conclusions ........................................... 227
8 SOS Address-Event Image Sensor ............................. 229
8.1 Introduction .......................................... 229
8.2 Overview of Photosensitive Circuits ................... 230
8.3 Noise Sources in Phototransducing Circuits ............ 234
8.4 Design of an SOS APS .................................. 237
8.5 Design of an SOS Digital Image Sensor Array ........... 250
8.6 Summary ............................................... 263
9 SOS Biosensor Interfaces ................................... 265
9.1 Introduction .......................................... 265
9.2 Noise and Sensing Limits .............................. 266
9.3 SOS Current-Mode Biosensor Interfaces ................. 282
10 SOS Design of Isolation and Three-Dimensional Circuits ..... 323
10.1 Introduction .......................................... 323
10.2 Isolation Circuits in SOS ............................. 324
10.3 Three-Dimensional Circuits in SOS ..................... 363
10.4 Summary and Conclusions ............................... 378
References .................................................... 381
Index ......................................................... 391
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