Diffusions of Antimony into Silicon Epitaxial Layers from Buried Layers

Investigation of Liquefaction Mechanism and Displacement in Buried Sand Layers

One of the most important reasons for damages during earthquakes is the liquefaction of loose and saturated sand soils. However, in many regions with proper soil specifications, the large settlements have been observed in the ground surface. Loose sand layers buried in fine soils are one of the cases which may result in these problems and as a weak point during earthquake can cause this phenome...

Photothermal deflection studies of GaAs epitaxial layers.

Photothermal beam deflection studies were carried out with GaAs epitaxial double layers grown on semi-insulating GaAs substrates. The impurity densities in thin epitaxial layers were found to influence the effective thermal diffusivity of the entire structure.

MICROSTRUCTURAL STUDY OF SILICON NITRIDE WHISKERS PRODUCED BY NITRIDATION OF PLASMA-SPRAYED SILICON LAYERS

plasma-sprayed silicon layers have been used to produce silicon nitride layers with fibrous microstructure which optimizes fracture toughness and strength. SEM examination of the specimens shows that the surface is covered by fine needles and whiskers of Si3N4.In order to study the oxygen contamination effect as well as other contaminants introduced during spraying and nitridation processes, su...

Organic epitaxial layers on organic substrates

Hydrogen refinement during solid phase epitaxy of buried amorphous silicon layers

The effect of hydrogen on the kinetics of solid phase epitaxy SPE have been studied in buried amorphous Si layers. The crystallization rate of the front amorphous/crystalline a/c interface is monitored with time resolved reflectivity. Secondary ion mass spectrometry SIMS is used to examine H implanted profiles at selected stages of the anneals. The H retardation of the SPE rate is determined up...