Diamond and silicon carbide in impact melt rock from the Ries impact crater

Article Abstract:

Silicon carbide and cubic diamonds are formed from vaporized carbon-containing rocks or by chemical vapor deposition from the ejecta plume of an impact crater. These compounds are present in impact melt from the Ries crater in southern Germany, and may be useful for analyzing the hypervelocity influence on Earth. Transmission electron microscopic analysis of the residue revealed skeletal aggregates of diamond and SiC but lonsdaleite was hard to detect. Ries contains 7.2 X 10 to the fourth power tonnes of diamond SiC in 3:1 ratio.

Research, Usage, Cover Story, Natural history, Craters, Diamonds, Chemical vapor deposition, Silicon carbide, Silicon carbides

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A 'bed of nails' on silicon

Article Abstract:

The study demonstrates creating tiny semiconductor pillars on a silicon surface as the demand for faster on-chip data communication is increasing. The devices that require both silicon devices and the process of heterosturcture are typically manufactured using a hybrid technology one that contains different chip sets of silicon and III-V circuits connected by wires.

United States, All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Silicon, Semiconductors, Properties, Semiconductors (Materials), Chip sets (Computers), Chipsets, Chipset

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