Manufacture and characterization of graphene membranes with suspended silicon proof masses for MEMS and NEMS applications

Ultra-thin Graphene/Polymer Layered Composite Membranes for NEMS applications

Single layer chemical vapor deposited (CVD) graphene has shown great promise in enabling Micro and Nanoelectromechanical Systems (MEMS/NEMS) that can outperform current silicon-based state of the art. However, current methods in forming single layer graphene MEMS devices result in low yields due to capillary effects acting on the suspended material during the graphene transfer process. In addit...

Release Optimization of Suspended Membranes in MEMS

Ultrananocrystalline and Nanocrystalline Diamond Thin Films for MEMS/NEMS Applications

Anirudha V. Sumant, Orlando Auciello, Robert W. Carpick, Sudarsan Srinivasan, and James E. Butler of smooth diamond films with uniform thickness and micro/nanostructure over large area substrates (≥150 mm diameter wafer), as recently demonstrated.1 Growth of thin (0.1 to 5 micron thick) diamond films on nondiamond substrates, typically conventional electronic substrates such as Si, SiC, and AlN...

Characterization of micromachined silicon membranes for immunoisolation and bioseparation applications

The application of microfabrication technology to create precise separation and isolation membranes for biomedical applications is described. By utilizing fabrication techniques commonly employed in the microelectronics industry (MEMS), membranes can be fabricated with well-controlled and uniform pore sizes, allowing the optimization of membrane parameters for biomedical applications in cell im...

synthesis and characterization of some macrocyclic schiff bases

ماکروسیکلهای شیف باز از اهمیت زیادی در شیمی آلی و دارویی برخوردار می باشند. این ماکروسیکلها با دارابودن گروه های مناسب در مکانهای مناسب می توانند فلزاتی مثل مس، نیکل و ... را در حفره های خود به دام انداخته، کمپلکسهای پایدار تولید نمایند. در این پایان نامه ابتدا یک دی آلدئید آروماتیک از گلیسیرین تهیه می شود و در مرحله بعدی واکنش با دی آمینهای آروماتیک و یا آلیفاتیک در رقتهای بسیار زیاد منجر به ت...