Glossary of surface technology

Silicon carbide

In addition to silicon dioxide, silicon carbide SiC is the most important silicon compound. Due to the chemical similarity of the partners silicon and carbon with 4 valence electrons each, the compound crystallises to form a tetrahedra diamond crystal structure. The material is often used as an abrasive for its high hardness. Though it has semiconductor properties of its own, it is rather used as a substrate for other semiconductor materials due to its low thermal expansion.

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