diamond – TechConnect Briefs

Investigation of secondary electron emission of a monocrystal diamond for creation microchannel devices with high quantum efficiency

Sadovoy V., Terentiev S., Bormashov V., FSBI TISNCM, RU

In this work possibility of use of a monocrystal diamond(CVD and HPHT) as highly effective secondary emitter is shown.The maximum SE coefficient about 14 at working accelerating voltage is received (several times exceeds SE coefficient [...]

Advantages and Limitations of Diamond-Like Carbon as a MEMS Thin Film Material

Ohlckers P., Skotheim T., Dmitriev V., Kirpilenko G., Vestfold University College, NO

We can observe from the material properties of Diamond-Like Carbon (DNC) several characteristics can be favourable exploited to make MEMS devices with DNC thin films: Extraordinary yield strength, extraordinary stiffness, high indentation hardness and wear [...]

Diamond Replicas on Silicon Substrate

Martins D.R., Mansano R., Verdonck P., Salvadori M.C., University of Sao Paulo, BR

Most microelectromechanical system (MEMS) devices have been based on silicon. This is due to the technological know-how accumulated on the manipulation, machining and manufacturing of silicon. However, the silicon properties are poor, especially when compared [...]

Diamond Materials for MEMS and NEMS Structures and Devices

Butler J.E., Feygelson T., Sekaric L., Craighead H., Wang J., Nguyen C.T.-C., Naval Research Laboratory, US

Diamond materials offer great potential for many MEMS and NES applications. Amongst the attractive technological properties of diamond materials are the high stiffness, thermal conductivity, optical transparency range, chemical stability and erosion resistance, and dopant [...]

Simulation of a Diamond-Based Bistable Thermal Microswitch

Schmid P., Hernandez-Guillen F.J., Kohn E., University of Ulm, DE

A novel bistable layout for a thermally driven microswitch based on polycrystalline diamond has been developed and evaluated by simulations. The device is based on a double-anchored, free standing diamond beam, which buckles due to [...]

MonteCarlo Simulations of Carbon-based Structures Based on Extended Brenner Potential

Petukhov A.V., Fasolino A., Research Institute for Materials, Institute of Theoretical Physics, University of Nijmegen, NL

Extended grand-canonical off-lattice Monte Carlo simulations of the (100) and (111) diamond surfaces have shown that the Brenner potential is extremely accurate in describing the structural properties at surfaces, supporting the recent predictions of new [...]

Modeling of High-speed Diamond Microswitch

Schmid P., Adamschik M., Ertl S., Kohn E., University of Ulm, DE

CVD grown diamond is a new attractive MEMS material and has been used here to realize a microswitch with extreme properties. Still at present the technological development requires a fast turnaround of the design based [...]

Modeling Approach for CVD-Diamond Based Mechanical Structures

Schmid P., Adamschik M., Ertl S., Gluche P., Kohn E., University of Ulm, DE

In this study, mechanical structures based on polycrystalline diamond films grown on silicon substrate are investigated. In contrast to all-silicon MEMS, additional problems arise due to the unusual properties of diamond. These effects are investigated [...]

Multiscale Modeling of Polycrystalline Diamond

Shenderova O.A., Brenner D.W., Omeltchenko A., Su X., Yang L.H., Nazarov A., North Carolina State University, US

Two modeling techniques used to characterize fracture behavior of polycrystalline diamond films are discussed. The first technique is a multiscale modeling method in which atomic level calculations on selected structures are combined with an analytic [...]