MICROMECHANICAL RESONATORS AS TUNERS IN WIRELESS DEVICES
RAJKRISHNAN.R
S7B

OVERVIEW
INTRODUCTION TO MEMS
MEMS RESONATORS
ARCHITECTURE
ADVANTAGES AND DISADVANTAGES
FABRICATION
FUTURE SCOPE AND CONCLUSIONS
REFERENCES




1) INTRODUCTION TO MEMS
The technology of very small mechanical devices driven by electricity.
1 to 100 micrometers in size.
Large surface area to volume ratio of MEMS, surface effects dominate volume effects
MEMS could ....etc

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Micromechanical systems can be combined with microelectronics, photonics or wireless capabilities new generation of Microsystems can be developed which will offer far reaching efficiency regarding space, accuracy, precision and so forth. Micromechanical systems (MEMS) technology can be used fabricate both application specific devices and the associated micro packaging systems that will allow for the integration of devices or circuits, made with non-compatible technologies, with a System-on-Chip environment. The MEMS technology can be used for ....etc

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ABSTRACT
Micromechanical systems can be combined with microelectronics, photonics or wireless capabilities new generation of Microsystems can be developed which will offer far reaching efficiency regarding space, accuracy, precision and so forth. Micromechanical systems (MEMS) technology can be used fabricate both application specific devices and the associated micro packaging systems that will allow for the integration of devices or circuits, made with non-compatible technologies, with a System-on-Chip environment. The MEM ....etc

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MEMS technology has enabled us to realize advanced micro devices by using processes similar to VLSI technology. When MEMS devices are combined with other technologies new generation of innovative technology will b created. This will offer outstanding functionality. Such technologies will have wide scale applications in fields ranging from automotive, aerodynamics, hydrodynamics, bio-medical and so forth. The main challenge is to integrate all these potentially non-compatible technologies into a single working microsystem that will offer outsta ....etc

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Construction material subjected to repetitive or cyclic loading have to be qualified for their fatigue behaviour. Generally their behaviour is considered satisfactory if they withstand two million cycle of repetitive loading without distress or failure at that required mean stress level and range stress.
The recent research in reinforcing Portland cement based material with randomly distributed fibres was spurred by pioneering research or fibre reinforced concrete (FRC) conducted in the United state in the 1960s.The addition of fibre in the co ....etc

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Micromechanical systems can be combined with microelectronics, photonics or wireless capabilities new generation of Microsystems can be developed which will offer far reaching efficiency regarding space, accuracy, precision and so forth. Micromechanical systems (MEMS) technology can be used fabricate both application specific devices and the associated micro packaging systems that will allow for the integration of devices or circuits, made with non-compatible technologies, with a System-on-Chip environment. The MEMS technology can be used for p ....etc

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Construction material subjected to repetitive or cyclic loading have to be qualified for their fatigue behaviour. Generally their behaviour is considered satisfactory if they withstand two million cycle of repetitive loading without distress or failure at that required mean stress level and range stress.
The recent research in reinforcing Portland cement based material with randomly distributed fibres was spurred by pioneering research or fibre reinforced concrete (FRC) conducted in the United state in the 1960s.The addition of fibre in the co ....etc

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A SONOS memory cell is formed from a standard polysilicon NMOS transistor with the addition of a small sliver of silicon nitride inserted inside the transistor's gate oxide. The sliver of nitride is non-conductive but contains a large number of charge trapping sites able to hold an electrostatic charge. The nitride layer is electrically isolated from the surrounding transistor, although charges stored on the nitride directly affect the conductivity of the underlying transistor channel. The oxide/nitride sandwich typically consists of a 2 nm thi ....etc

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