Thermal Characterization of Polycrystalline CVD Diamond Thin Films
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The invention relates to an effusing source for film deposition made of a reservoir comprising one hole characterized by the fact that the hole diameter is less than one order of magnitude than the mean free path of the molecules determined by the pressure ...
ECOLE POLYTECHNIQUE FEDERALE LAUSANNE (ECOL-Non-standard) BENVENUTI G (BENV-Individual) AMOROSI S (AMOR-Individual) HALARY-WAGNER E (HALA-Individual)2002
We used the novel experimental technique of photoemission spectromicroscopy to investigate the active area of SnO(x) thin films for gas sensors, deposited by dc sputtering. First, we analyzed the degree of oxidation and the homogeneity of as-deposited film ...
Two methods were used for the deposition of Pt particles on synthetic B-doped diamond (BDD) surfaces: chem. deposition and electrodeposition under potentiostatic conditions. However, electrodeposition leads much higher Pt dispersion than chem. deposition. ...
Direct writing of metal features narrower than 100 nm is accomplished by scanning a focused ion beam over a substrate covered with a thin solid metalorg. film. A metalorg. cluster coordination compd. [Ir4(CO)11Br] [N(C2H5)4] is spun on an oxidized Si wafer ...
Selective dissolution of titanium through a laser patterned oxide film has been achieved in a 3M sulfuric acid-methanol electrolyte. The 250 nm thick oxide film was formed anodically on a flat titanium surface in 0.5 M sulfuric acid. The patterning of the ...
Titanium dioxide is a cheap, chemically stable and non-toxic material. However its electrical properties are unstable and it is a modest semiconductor and a mediocre insulator. For several applications it would be interesting to make it either more insulat ...
An important parameter for the overall quality of SLS parts is the density of powder layers before sintering. Previous studies have shown that the control of powder particle shape and size distribution can increase the density of non-packed powder beds. Ho ...
University Texas Austin, Mechanical Engineering Dept, Austin, Tx 00000 Usa1999
Pb(Zr,Ti)03 thin films with compositions close to the morphotropic phase boundary deposited onto electroded Si substrates have potential for use in ferroelectric memories, sensors and micromechanical devices. The microstructures of such films prepared by i ...
The aim of this work was to investigate the degradation of the anti-adhesive properties of protective PTFE films during the hot embossing of thermoplasts, and to identify possible failure causes which reduce the lifetime of these films. A comparative XPS s ...