Mechanical Microsensors

"Mechanical Microsensors provides a comprehensive description of the various design techniques required for silicon micromachining of sensors. This is a very well written book which has a pleasant balance of mathematical, physics and engineering principles, that make this book suitable for physicists, chemistry, electrical and mechanical engineers." --SENSOR REVIEW "Of particular value is the fact that the authors go further than the description of the silicon sensor elements and also present solutions on how to interface these sensors to the surrounding world - electronically in the chapter on 'Electronic Interfacing' as well as physically in the chapter on 'Packaging'. To summarize, this textbook gives a comprehensive overview of mechanical microsensors which is especially well suited for students in courses on mechanical microsensors, but is also valuable for people in research and industry with an interest in this exciting and growing field." -MEASUREMENT SCIENCE AND TECHNOLOGY

• 1. Introduction.- 2. MEMS.- 2.1 Miniaturisation and Systems.- 2.2 Examples for MEMS.- 2.3 Small and Large: Scaling.- 2.4 Available Fabrication Technology.- 3. Introduction into Silicon Micromachining.- 3.1 Photolithography.- 3.2 Thin Film Deposition and Doping.- 3.3 Wet Chemical Etching.- 3.4 Waferbonding.- 3.5 Plasma Etching.- 3.6 Surface Micromachining.- 4. Mechanics of Membranes and Beams.- 4.1 Dynamics of the Mass Spring System.- 4.2 Strings.- 4.3 Beams.- 4.4 Diaphragms and Membranes.- 5. Principles of Measuring Mechanical Quantities: Transduction of Deformation.- 5.1 Metal Strain Gauges.- 5.2 Semiconductor Strain Gauges.- 5.3 Capacitive Transducers.- 6. Force and Pressure Sensors.- 6.1 Force Sensors.- 6.1.1 Load Cells.- 6.2 Pressure Sensors.- 7. Acceleration and Angular Rate Sensors.- 7.1 Acceleration Sensors.- 7.2 Angular Rate Sensors.- 8. Flow sensors.- 8.1 The Laminar Boundary Layer.- 8.2 Heat Transport in the Limit of Very Small Reynolds Numbers.- 8.3 Thermal Flow Sensors.- 8.4 Skin Friction Sensors.- 8.5 “Dry Fluid Flow” Sensors.- 8.6 “Wet Fluid Flow” Sensors.- 9. Resonant Sensors.- 9.1 Basic Principles and Physics.- 9.2 Excitation and Detection Mechanisms.- 9.3 Examples and Applications.- 10. Electronic Interfacing.- 10.1 Piezoresistive Sensors.- 10.2 Capacitive Sensors.- 10.3 Resonant Sensors.- 11. Packaging.- 11.1 Packaging Techniques.- 11.2 Stress Reduction.- 11.3 Pressure Sensors.- 11.4 Inertial Sensors.- 11.5 Thermal Flow Sensors.- References.