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Bhushan, B. “Micro/Nanotribology and Micro/Nanomechanics of MEMS.” Handbook of Micro/Nanotribology. Ed. Bharat Bhushan Boca Raton: CRC Press LLC, 1999 Micro/Nanotribology and Micro/Nanomechanics of MEMS Devices Bharat Bhushan Introduction Background • Tribological Issues 16 Experimental Techniques Description of Apparatus and Test Procedures • Test Samples Results and Discussion Micro/Nanotribological Studies of Virgin, Coated, and Treated Silicon Samples • Micro/Nanotribological Studies of Doped and Undoped Polysilicon Films, SiC Films, and Their Comparison to Single-Crystal Silicon • Macroscale Tribological Studies of Virgin, Coated, and Treated Samples • Boundary Lubrication Studies • Component Level Studies Closure References Introduction Background The advances in silicon photolithographic process technology since 1960s have led to. | Bhushan R Micro Nanotribology and Micro Nanomechanics of MEMS. Handbook of Micro Nanotribology. Ed. Bharat Bhushan Boca Raton CRC Press LLC 1999 16 Micro Nanotribology and Micro Nanomechanics of MEMS Devices Bharat Bhushan Introduction Background Tribological Issues Experimental Techniques Description of Apparatus and Test Procedures Test Samples Results and Discussion Micro Nanotribological Studies of Virgin Coated and Treated Silicon Samples Micro Nanotribological Studies of Doped and Undoped Polysilicon Films SiC Films and Their Comparison to Single-Crystal Silicon Macroscale Tribological Studies of Virgin Coated and Treated Samples Boundary Lubrication Studies Component Level Studies Closure References Introduction Background The advances in silicon photolithographic process technology since 1960s have led to the development of microcomponents or microdevices known as microelectromechanical systems MEMS . More recently lithographic processes have been developed to process nonsilicon materials. These lithographic processes are being complemented with nonlithographic micromachining processes for fabrication of milliscale components or devices. Using these fabrication processes researchers have fabricated a wide variety of miniaturized devices such as acceleration pressure and chemical sensors linear and rotary actuators electric motors gear trains gas turbines nozzles pumps fluid valves switches grippers tweezers and optoelectronic devices with dimensions in the range of a couple to a few thousand microns for an early review see Peterson 1982 for recent reviews see Muller et al. 1990 Madou 1997 Trimmer 1997 and Bhushan 1998a . MEMS technology is still in its infancy and the emphasis to date has been on the fabrication and laboratory demonstration of individual components. MEMS devices have begun 1999 by CRC Press LLC to be commercially used particularly in the automotive industry. Silicon-based high-g acceleration sensors are used

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